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: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
now let 's just power through it together . sometimes matrix multiplication can get a little bit intense . we 're now in the second row , so we 're going to use the second row of this first matrix , and for this entry , second row , first column , second row , first column .
can anyone briefly explain me the importance of matrix multiplication in linear algebra and computer graphic designing ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 .
2 ) is there a way to memorize efficiently how to multiply all types of matrices ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
that 's how we did addition . we added corresponding entries , but that is not the convention for multiplying matrices . that is not the standard convention .
i can sort of understand how a matrix might be helpful in real life ... but multiplying matrices ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
that 's essentially taking the dot product of this row vector and this column vector . if that does n't make sense to you , if you 're not familiar with vectors and dot products , do n't worry about it . we just took the first end product of the first entry , product of the second entry , added them together to get ...
how long are you supposed to play hide n seek with my mom ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
now let 's just power through it together . sometimes matrix multiplication can get a little bit intense . we 're now in the second row , so we 're going to use the second row of this first matrix , and for this entry , second row , first column , second row , first column .
what is an inverse matrix ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
now let 's just power through it together . sometimes matrix multiplication can get a little bit intense . we 're now in the second row , so we 're going to use the second row of this first matrix , and for this entry , second row , first column , second row , first column .
but can we divide matrix by a matrix ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
but i really want to stress this is a human construct . humans have found defining matrix multiplication the way i 'm about to show you to be useful . let 's just think about how this could be .
do exponents of matrices work the same way as matrix multiplication ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
that makes sense because we 're still in the first row but we 're in the second column of the first row right here . first row , second column . it 's going to be 2 times 4 , 2 times 4 plus negative 2 , plus negative 2 times negative 6 .
why ca n't we take the 1st row of the 1st matrix with the 1st column of the 2nd matrix in multiplication ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
you could have done it the same way that you add matrices . when you add matrices , both matrices have to have the same dimensions , and you just add the corresponding entries in the matrices . one convention could have been why do n't we just , for our product right over here , why do n't we just multiply correspondin...
the matrices being multiplied do n't really seem logical nor intuitive ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
you could have done it the same way that you add matrices . when you add matrices , both matrices have to have the same dimensions , and you just add the corresponding entries in the matrices . one convention could have been why do n't we just , for our product right over here , why do n't we just multiply correspondin...
can we multiply matrices by whole numbers ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
but i really want to stress this is a human construct . humans have found defining matrix multiplication the way i 'm about to show you to be useful . let 's just think about how this could be .
i understand how to use matrices for `` graphing '' information , but how is matrix multiplication useful ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
notice , i took the product , first entry in the row , first entry in the column , those two products , then the product of second entry in the row , second entry in the column that 's right over there , and then i added them together . that 's essentially taking the dot product of this row vector and this column vecto...
wait , so what are dot products ?
: let 's say that we have got 2 matrices , and i 'll just , for simplicity , i 'll start with two 2 by 2 matrices . let 's say that this first one right over here is 2 , negative 2 , 5 , and let 's say 5 and 3 , and then i have this matrix right over here that it 's also going to be 2 by 2 . let 's say it 's negative ...
if the word `` dot product '' makes no sense to you , i will show you what that actually means . actually , let 's get some more real estate here just so i think it will be useful , especially this very first time that we attempt to multiply matrices . this top left entry , it 's going to be 2 times negative 1 , so 2 t...
how are matrics used in real life ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes .
how loud is a trombone ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes .
what is the range of a contrabass trombone ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
and that is , the brass player makes the pitch with a body part , and that 's our lips . and the vocalist makes their pitch with the vocal cords . it 's not far , though .
and what makes the best sound music-wise ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes .
how much does a soprano trombone cost ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes .
how do clean your trombone ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes .
on a scale of 1-10 how loud is a trombone ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
but then there 's a whole world of the classical trombone . there 's usually three trombones in an orchestra , two tenors and a bass . but then there 's the brass band world , the concert bands , wind ensembles .
two questions , what is the broke ages and how many different trombones are there ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes .
how long is the soprano trombone ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes .
what is the difference between a trombone and a trumpet ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the sackbut . trombone , of course , lot of people associate it with jazz , because that 's its natural habitat .
why would the trombone be called a sack butt at 0?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
( horn blowing ) okay ? so , that does n't really work . ( `` symphony no .
did n't joseph alessi teach other musicians in the same orchestra ?
( `` symphony no.2 - i. allegro maestoso '' by gustav mahler ) this is a tenor trombone . and there 's a bass trombone and an alto trombone , and a soprano trombone , and a contrabass trombone . so we 've got a lot of different sizes . trombone goes back to the baroque ages . and then they had a funny name called the s...
that 's the key , in classical trombone is to have complete control of the slide , where you do n't show any glissando at all . so , if you play a scale . ( horn blowing ) i 'm very careful how to move the slide .
can you play more than 1 note ?
what is a thoracic aortic aneurysm ? well let 's break that down . an aneurysm is a permanent localized dilation of something . in this case , of the aorta which is the main artery in our bodies . now the aorta is pretty long , it originates from the left ventricle of the heart here and it extends down through the tho...
here are a few of the major risk factors . atherosclerosis is a big risk factor . smoking is also a big risk factor for development of aneurysms partly because it contributes to atherosclerosis development and partially because it directly damages the walls of your arteries . hypertension is another risk factor . copd ...
why is copd a risk factor for development of aneurysms ?
what is a thoracic aortic aneurysm ? well let 's break that down . an aneurysm is a permanent localized dilation of something . in this case , of the aorta which is the main artery in our bodies . now the aorta is pretty long , it originates from the left ventricle of the heart here and it extends down through the tho...
there 's a few reasons why aneurysms are not are favorite thing . why do aneurysms occur in the first place ? well there 's a couple reasons , the most common reason the aorta would balloon out here is because of something called arteriosclerosis or degenerative change . that just means that the walls of the aorta star...
the aorta has lots of branches so would saccular aneurysms be more common because of the many branches of the aorta ?
( piano music ) - [ steven ] in 1970 , robert smithson hired several people to help him create spiral jetty . we 're standing right in the middle , at the edge of the great salt lake in utah . - [ beth ] but we 're not seeing this the way that it existed when smithson first created it , where it was an intersection bet...
- [ steven ] smithson was interested in the idea of entropy , the idea of the way things break down . and his intervention in this natural landscape , it 's an expression of the way in which artists thought about the landscape for many years . - [ beth ] we could go back to artists like caspar david friedrich , who tho...
in your belief does artworks , such as , this one , destroys and ruin the landscape or inflicts beauty with the use of nature ?
( piano music ) - [ steven ] in 1970 , robert smithson hired several people to help him create spiral jetty . we 're standing right in the middle , at the edge of the great salt lake in utah . - [ beth ] but we 're not seeing this the way that it existed when smithson first created it , where it was an intersection bet...
( piano music ) - [ steven ] in 1970 , robert smithson hired several people to help him create spiral jetty . we 're standing right in the middle , at the edge of the great salt lake in utah .
were the two of you the only people present during the time that you were observing spiral jetty ?
in the last video , we made a visual argument as to why this expression has to be less than 1/3 , and this expression we already figured out is the fraction that are bears . now we will make an algebraic argument , or i could call it an analytic argument . and to make this argument , i 'm going to leave this expression...
and to make this argument , i 'm going to leave this expression -- we know this is the fraction that are bears -- and i 'm going to write this 1/3 in a form that looks a lot like this , and then based on the information we have , we can directly compare them . so how can i write 1/3 ? maybe with the b as a numerator .
how did sal know that d = 1/3 of the rectangle in his visual analysis ?
in the last video , we made a visual argument as to why this expression has to be less than 1/3 , and this expression we already figured out is the fraction that are bears . now we will make an algebraic argument , or i could call it an analytic argument . and to make this argument , i 'm going to leave this expression...
maybe with the b as a numerator . well , 1/3 is the same thing as b over 3b , which is the exact same thing as b over b plus b plus b . so now , this is looking pretty similar .
could n't d be a little less than 1/3 but greater than b ?
in the last video , we made a visual argument as to why this expression has to be less than 1/3 , and this expression we already figured out is the fraction that are bears . now we will make an algebraic argument , or i could call it an analytic argument . and to make this argument , i 'm going to leave this expression...
maybe with the b as a numerator . well , 1/3 is the same thing as b over 3b , which is the exact same thing as b over b plus b plus b . so now , this is looking pretty similar .
if a > d > b was 1000000002 > 1000000001 > 1000000000 , then would n't 1000000000/3000000003=1/3 ?
in the last video , we made a visual argument as to why this expression has to be less than 1/3 , and this expression we already figured out is the fraction that are bears . now we will make an algebraic argument , or i could call it an analytic argument . and to make this argument , i 'm going to leave this expression...
this right over here has a smaller denominator . and since we know this has a larger denominator , this has a smaller denominator , they have the exact same numerator -- they both have b as a numerator -- we know that this whole thing must be a smaller quantity . if you have the same numerator but one expression has a ...
okaaaay , how do we know the numerator is positive and where is negative a ?
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here . we 'll call it r. and let 's call the boundary of my region , let 's call that c. and if i have some vector field in this region , so let me draw a vector field like this . if i ...
so we have positive divergence . so you can imagine that it 's kind of -- the vector field within the region , it 's a source of the vector field , or the vector field is diverging out . that 's just the case i drew right over here .
can you calculate the field of g ?
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here . we 'll call it r. and let 's call the boundary of my region , let 's call that c. and if i have some vector field in this region , so let me draw a vector field like this . if i ...
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here .
so is divergence theorem the same as gauss ' theorem ?
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here . we 'll call it r. and let 's call the boundary of my region , let 's call that c. and if i have some vector field in this region , so let me draw a vector field like this . if i ...
if you had a converging vector field , where it 's coming in , the flux would be negative , because it 's going in the opposite direction of the normal vector . and so the divergence would be negative as well , because essentially the vector field would be converging . so hopefully this gives you an intuition of what t...
also , we have been taught in my multivariable class that gauss ' theorem only relates the flux over a surface to the divergence over the volume it bounds and if you had for example a path in three dimensions you would apply green 's theorem and the line integral would be equivalent to the curl of the vector field inte...
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here . we 'll call it r. and let 's call the boundary of my region , let 's call that c. and if i have some vector field in this region , so let me draw a vector field like this . if i ...
so we have positive divergence . so you can imagine that it 's kind of -- the vector field within the region , it 's a source of the vector field , or the vector field is diverging out . that 's just the case i drew right over here .
what did sal mean by a vector field ?
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here . we 'll call it r. and let 's call the boundary of my region , let 's call that c. and if i have some vector field in this region , so let me draw a vector field like this . if i ...
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here .
why `` dv '' ?
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here . we 'll call it r. and let 's call the boundary of my region , let 's call that c. and if i have some vector field in this region , so let me draw a vector field like this . if i ...
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here .
where can i find more material on divergence theorem , or ( better yet ) what level of mathematics should i have mastered in order to continue my studies using this program ?
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here . we 'll call it r. and let 's call the boundary of my region , let 's call that c. and if i have some vector field in this region , so let me draw a vector field like this . if i ...
the flux across the boundary , so the flux is essentially going to be the vector field . it 's going to be our vector field f dotted with the normal outward-facing vector . so the normal vector at any point is this outward-facing vector , so our vector field , dotted with the normal-facing vector at our boundary times ...
sal refers to a outward facing vector is that the area vector ?
we 've already explored a two-dimensional version of the divergence theorem . if i have some region -- so this is my region right over here . we 'll call it r. and let 's call the boundary of my region , let 's call that c. and if i have some vector field in this region , so let me draw a vector field like this . if i ...
so it 's going to be a surface integral . so this is flux across the surface . it 's going to be equal to -- if we were to sum up the divergence , if we were to sum up across the whole volume , so now if we 're summing up things on every little chunk of volume over here in three dimensions , we 're going to have to tak...
could you use the divergence theorem , or some variation of it , to calculate volumetric flux around a surface ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
and on a clock the hours are represented by the short hand , and then the other part is minutes . and on an analog clock like this one , minutes are represented by the long hand . so let 's look first at hours .
what do you mean by analog ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts .
what is the symbol , : , that you used and why are we using it ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
so the minute hand started at the top and it 's gone five , 10 , 15 , not quite to 20 , so let 's go back to 15 and then count by ones . 16 , 17 , 18 , 19 . our minute hand lines up to 19 .
i have a few math questions , what is 16 x 14 ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
46 minutes past seven . the time is 7:46 .
why did the greeks invent time ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
46 minutes past seven . the time is 7:46 .
why is telling time so important ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
46 minutes past seven . the time is 7:46 .
how does a lunar/solar eclipse happen when time does n't change ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
now we ca n't go all the way to the six because our minute hand stopped here . it has n't reached this part . so after 25 , we 'll go back to counting by one , is the one minute .
do n't you have to count the lines really carefully ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part .
who made the first clock ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
and on a clock the hours are represented by the short hand , and then the other part is minutes . and on an analog clock like this one , minutes are represented by the long hand . so let 's look first at hours .
is the clock significant to modular arithmetic ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts .
how many people can fit in a school ?
let 's look at this clock and see if we can tell what time is shown on it . first thing , when we look at a clock , we have two hands and that 's because time is told in two parts . time is told in hours , that 's part . and on a clock the hours are represented by the short hand , and then the other part is minutes . ...
our minute hand lines up to 19 . so it is 19 minutes after four , or 4:19 . on this one i encourage you to pause the video and see if you can figure out the time .
what is million times thousand and 4 ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
a will pay pension fund 1 10 % . but pension fund 1 wants to make sure that they 'll definitely get the money , because they ca n't lend money to people with anything less than stellar credit ratings . so they get some insurance from insurer 1 .
how is it possible that you are able to make a cds when in the normal world you ca n't insure your neighbors house against a fire ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
these numbers maybe are a little bit on the big side , but who knows ? actually , this could be a huge hedge fund . this could be a $ 10 billion hedge fund .
0 : i dont understand how can the hedge fund h1 get the insurance without having to actually lend the money to b company ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
hey , these guys are good for their money , they 're double a or whatever . so now your risk is really a double a risk and not a double b risk , or whatever . but anyway , this happens .
even if all of the risk could be conservatively and wisely quantified and managed and therefore did not create the vulnerability that it did create , how is this sort of financial activity ( ie betting ) in any way helpful to the real wealth producing ( what is left of it ) part of the economy ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
let 's re-draw some of the connections between the organizations . let 's say pension fund 1 were to lend $ 1 billion to a . a will pay pension fund 1 10 % . but pension fund 1 wants to make sure that they 'll definitely get the money , because they ca n't lend money to people with anything less than stellar credit rat...
probably a silly legal question here : why is hedge fund # 1 's credit default swap not considered to be gambling ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
actually , this could be a huge hedge fund . this could be a $ 10 billion hedge fund . or even worse , maybe it 's a billion dollar hedge fund , or maybe it 's a $ 20 million hedge fund , but they 've taken a $ 180 million loan to essentially buy this insurance because they think that b 's collapse is imminent .
why would hedge fund 1 lend 10 billion to insurer 2 in the first place ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . because that 's essentially what a credit default swap is , it 's insurance on debt . if someone does n't pay the debt , then the insurance compa...
what are some examples of companies that offer insurance for credit default swap ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
i think it 's a good deal . i get 200 basis points on the 10 billion every year , as long as b does n't default . and this guy says , i think b 's going to default . so i think that 's a good deal on that insurance .
what makes h1 so sure about b 's default ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
hey , these guys are good for their money , they 're double a or whatever . so now your risk is really a double a risk and not a double b risk , or whatever . but anyway , this happens .
are cds 's the problem are is it just the fact that the gov't got involved , guaranteed these packages , and made risk less easy to assess ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
now let 's add another twist on it . these pension funds , p1 and p2 , it was reasonable for them to get insurance , because they were giving out these loans and then they got the insurance . so they were essentially hedging the default risk by buying these credit default swaps , which was essentially just an insurance...
my question is what 's the relationship between h1 and p1 or p2 ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
and some of these were insurance companies , some of these were banks . some of these may have even been hedge funds . so these are the people who write the credit default swaps , and then there are the people who would actually buy the credit default swaps .
did the insurance companies go broke paying the hedge funds back before they could pay back the pension funds ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
so you have to wonder whether it even deserves this double a rating , because it actually is taking on a lot of risk . but in the short term , while these companies are -- everyone is doing well and the economy 's doing well , it 's a great business for these guys . these guys are just collecting premiums essentially o...
so what would stop h1 from actively conspiring ( in `` legal '' ways ) to drive b2 out of business to collect the payout ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
we 're going to reduce your ratings . maybe this guy was insuring some of a 's debt , but now since he was insuring some of a 's debt , all of a sudden that insurance is worth less because it has a lower rating . and now a 's debt , less people want to hold it , because there are less people to insure it .
was a simultaneous collapse of a number of companies in which they were insuring the loan ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
but anyway , this happens . this is corporation b , and maybe pension fund 2 wants to lend to corporation b . maybe they lend them $ 2 billion .
i mean what is the connection between i2 and b ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
this is this new notation that i 'm creating . they get insurance on a . fair enough .
i can get an insurance from an insurance company on any amount of money that a bank ( or any entity ) is going to go insolvent/bankrupted ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
some of these may have even been hedge funds . so these are the people who write the credit default swaps , and then there are the people who would actually buy the credit default swaps . in the previous example , i had pension fund 1 , that was my pension fund .
how would credit default swaps reflect on a insurer 's balance sheet ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
let 's re-draw some of the connections between the organizations . let 's say pension fund 1 were to lend $ 1 billion to a . a will pay pension fund 1 10 % . but pension fund 1 wants to make sure that they 'll definitely get the money , because they ca n't lend money to people with anything less than stellar credit rat...
how does hedge fund 1 knopws of these details ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
but you do n't keep enough capital to pay all of the defaulting debt . so you already see an interesting risk forming . what if all of these corporations , for whatever reason , do start defaulting simultaneously ?
at 8 : 40 why would i2 be insuraning p1 when p1 is already being backed by a1 ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities .
was this `` betting strategy '' applied by goldman sachs when it dealt with client 's houses ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
now they 're going to have to unload that debt . so just one default creates this chain reaction , right ? this one default happens , this guy has to pay this guy money , then this guy gets undercapitalized since they have to pay out money . then moody 's says , oh , my god , you 're undercapitalized .
does the money supply increase when the loans default ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
and some of these were insurance companies , some of these were banks . some of these may have even been hedge funds . so these are the people who write the credit default swaps , and then there are the people who would actually buy the credit default swaps .
when hedge funds take a cds on the company for well more than whatever that company even has outstanding , how does the payment to that hedge fund work ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
these numbers maybe are a little bit on the big side , but who knows ? actually , this could be a huge hedge fund . this could be a $ 10 billion hedge fund . or even worse , maybe it 's a billion dollar hedge fund , or maybe it 's a $ 20 million hedge fund , but they 've taken a $ 180 million loan to essentially buy th...
how is it that hedge find a can buy insurance on something it does not own ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
what if all of these corporations , for whatever reason , do start defaulting simultaneously ? then all of a sudden this insurance company has to pay more out in insurance then it might even have . so you have to wonder whether it even deserves this double a rating , because it actually is taking on a lot of risk .
are those insurance companies will accept any kinds of cds even when the borrower has a very low credit ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
so these are the people who write the credit default swaps , and then there are the people who would actually buy the credit default swaps . in the previous example , i had pension fund 1 , that was my pension fund . then you could have another pension fund , pension fund 2 . let 's re-draw some of the connections betw...
can pension fund a then buys cds from all 3 insurers ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
let 's re-draw some of the connections between the organizations . let 's say pension fund 1 were to lend $ 1 billion to a . a will pay pension fund 1 10 % . but pension fund 1 wants to make sure that they 'll definitely get the money , because they ca n't lend money to people with anything less than stellar credit rat...
quick question 1 : how can the hedge fund buy a cdf worth $ 10bn if the total loan value is $ 2bn ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . because that 's essentially what a credit default swap is , it 's insurance on debt . if someone does n't pay the debt , then the insurance compa...
so when i buy a credit default swap , i 'm basically just buying debt insurance ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
it 's now b+ insurance , and maybe this pension fund , by its charter , ca n't hold something that has a b+ credit rating . so they 're going to have to unwind the transaction , or maybe they 'll have to unload the debt that was insured . so one , just by company b defaulting , maybe this guy was holding some of compan...
what does it mean when sal says `` unload that debt ... '' how does a company `` unwind the transaction '' ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
so what i 'm going to do , i 'm not going to lend company b money , because if anything , i think that they 're maybe about to go out of business . but what i can do is i can buy a credit default swap on company b 's debt . which is , essentially , i 'm getting insurance that they fail without actually lending the mone...
so the reason why h1 bought credit default swap from i2 is because they were betting that company b was going to go bankrupt ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
it 's now b+ insurance , and maybe this pension fund , by its charter , ca n't hold something that has a b+ credit rating . so they 're going to have to unwind the transaction , or maybe they 'll have to unload the debt that was insured . so one , just by company b defaulting , maybe this guy was holding some of compan...
what is mean by unwinding the transaction or unloading the debt here ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
and i doubt that was the only person you have to pay , maybe they have to pay out a lot of money . now i2 , insurance company 2 , you are undercapitalized . i am now going to downgrade your rating .
+ , how realistic of an example is this , in reference to hedge fund h1 and the insurance company i2 ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
and something interesting is going on here already . b might not have even borrowed $ 10 billion , right ? so all of a sudden you have this hedge fund that is getting insurance on more debt than b has even borrowed money on , right ?
is h1 extraordinarily smart ( even resorting to illegal methods ) to successfully predict b 's demise a mere 3 months before the actual occurrence , or is i2 extremely stupid to not even see the imminent collapse of b ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
these numbers maybe are a little bit on the big side , but who knows ? actually , this could be a huge hedge fund . this could be a $ 10 billion hedge fund .
could someone explain to me the concept behind synthetic cds ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
and some of these were insurance companies , some of these were banks . some of these may have even been hedge funds . so these are the people who write the credit default swaps , and then there are the people who would actually buy the credit default swaps . in the previous example , i had pension fund 1 , that was my...
are there companies/hedge funds with credit default swaps on the u.s. debt ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
and i doubt that was the only person you have to pay , maybe they have to pay out a lot of money . now i2 , insurance company 2 , you are undercapitalized . i am now going to downgrade your rating . so , you were double a , but since you had to give out all of this capital , moody 's is now going to downgrade you to , ...
when i2 gets a rating downgrade , what happens to p1 ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
we 're going to reduce your ratings . maybe this guy was insuring some of a 's debt , but now since he was insuring some of a 's debt , all of a sudden that insurance is worth less because it has a lower rating . and now a 's debt , less people want to hold it , because there are less people to insure it .
since i2 was insuring a 's debt to p1 , and p1 can only lend to companies with an excellent credit rating , does p1 find another insurer ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
you know , it might be a good bet . if b collapses tomorrow , what 's going to happen ? they only dished out maybe 200 million for maybe that first year , although you normally pay it on a quarterly basis .
is h1 ( introduced ) betting on b going out of business , or is it betting on b not paying its debt to p2 ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
then these guys get $ 10 billion . right ? but something else is interesting here .
even if b goes bankrupt , p2 could still get the $ if they are senior enough , right ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
so they 're going to have to unwind the transaction , or maybe they 'll have to unload the debt that was insured . so one , just by company b defaulting , maybe this guy was holding some of company a 's debt , and it was insured by insurance company 1 . now they 're going to have to unload that debt .
so what exactly is h1 betting on if they are betting on b defaulting -- defaulting on one specific loan ( such as the loan to p2 ) or defaulting on any of their liabilities ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
i1 is going to owe p2 $ 2 billion , right ? i2 , the second insurer , is going to owe this hedge fund $ 10 billion . now let 's just assume i2 's good for the money .
how can the hedge funds who are betting against the corporation going bankrupt value the corporation at 10 billion dollars ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
and i doubt that was the only person you have to pay , maybe they have to pay out a lot of money . now i2 , insurance company 2 , you are undercapitalized . i am now going to downgrade your rating .
question : if a company that you have a cds insurance policy defaults , and you owe the insurer 200 bp ( 2 % ) , do you give them 2 % on the principal amount , or do you give them 2 % on zero ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
right ? or maybe they also insured a 's debt . so maybe they gave some insurance on a 's debt , as well .
is it just that the banks are insured by the central bank ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
but all of a sudden , when this guy is b+ , and this guy insured , let 's say , some other corporation 's debt for this pension fund , now all of a sudden this insurance that this pension fund had is no longer double a insurance . it 's now b+ insurance , and maybe this pension fund , by its charter , ca n't hold somet...
how can the hedge fund predict b is gon na collapse but insurer 2 ca n't see it coming ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
but something else is interesting here . they probably did insurance to a lot of other people too , maybe on b 's debt . right ?
immediately , moody 's downgrades i2 from aa to b+ , certainly a lot of people would n't want to lend a money anymore , because a 's debt is insured by an under capitalized insurance company with poor credit , would they ?
so let 's see if we can get a big picture of everything that 's happening in this credit default swap market . i 'll speak in generalities . let 's say we have corporation a , corporation b , corporation c. and let 's say we have a bunch of people who write the credit default swaps , and i 'll call them insurers . beca...
right ? but something else is interesting here . they probably did insurance to a lot of other people too , maybe on b 's debt . right ?
because if they are so much smarter than everybody else , and if they have a big interest in a return of their investment , then they probably only invest in a cds that is very likely to fail ?
- try to pause the video and figure out what 71 plus 24 is . all right , now let 's do this together . so let 's think about what 71 actually means . well we have a one in the ones place . let me make this clear . so this is the ones place and we have one one . so that 's that one one right over there . and then the te...
this right over here , 71 boxes . now we 're going to add to that two tens . we 're gon na add to that two tens ; you see them here .
how can you add 2 digit numbers without making an even number ?
- try to pause the video and figure out what 71 plus 24 is . all right , now let 's do this together . so let 's think about what 71 actually means . well we have a one in the ones place . let me make this clear . so this is the ones place and we have one one . so that 's that one one right over there . and then the te...
- try to pause the video and figure out what 71 plus 24 is . all right , now let 's do this together .
what is 45 + 50 ?
( music ) ( `` in the sky with diamonds '' by scalding lucy ) steven : i 'm looking at this gorgeous , subtle painting by giovanni bellini of the `` ecstasy of saint francis '' , but i 'm not seeing the seraphim , i 'm not seeing the gold rays , i 'm not seeing all of the stage props of divinity that i expect to see . ...
( music ) ( `` in the sky with diamonds '' by scalding lucy ) steven : i 'm looking at this gorgeous , subtle painting by giovanni bellini of the `` ecstasy of saint francis '' , but i 'm not seeing the seraphim , i 'm not seeing the gold rays , i 'm not seeing all of the stage props of divinity that i expect to see . ...
where is the frick collection located ?
( music ) ( `` in the sky with diamonds '' by scalding lucy ) steven : i 'm looking at this gorgeous , subtle painting by giovanni bellini of the `` ecstasy of saint francis '' , but i 'm not seeing the seraphim , i 'm not seeing the gold rays , i 'm not seeing all of the stage props of divinity that i expect to see . ...
he opens his mouth , but there 's something about the subject and the miraculousness of what 's happening that makes one expect drama and pain , but instead it 's all very gentle , subtle and lovely . steven : this is a painting that is about light . oil allowed bellini to be able to create this sense of luminosity .
what is the size of this painting ?
( music ) ( `` in the sky with diamonds '' by scalding lucy ) steven : i 'm looking at this gorgeous , subtle painting by giovanni bellini of the `` ecstasy of saint francis '' , but i 'm not seeing the seraphim , i 'm not seeing the gold rays , i 'm not seeing all of the stage props of divinity that i expect to see . ...
( music ) ( `` in the sky with diamonds '' by scalding lucy ) steven : i 'm looking at this gorgeous , subtle painting by giovanni bellini of the `` ecstasy of saint francis '' , but i 'm not seeing the seraphim , i 'm not seeing the gold rays , i 'm not seeing all of the stage props of divinity that i expect to see . ...
is there a hole in the cloud ?