query_id stringlengths 3 6 | question stringlengths 1 299 | goldenAnswer stringlengths 3 35k | doc_id stringlengths 36 36 |
|---|---|---|---|
cjzz9w | Why is it funny when people fall / get hurt? Is it a nervous reaction? | Most the time its not. Its when they get back up its a nervous relief | c9c05714-2fc4-444f-8c81-f8296eeadb63 |
ck0s22 | How did last names stick? | There are different kinds of last names. Job based, Location based, feature based, familial (son of, daughter of, descendant of, etc), and assigned.
For Job based names you took the name of the profession that you had. If you changed profession, then you would generally change or amend your name to reference that. Mo... | 0970c8c6-a8f5-454d-8abc-8c4137c20639 |
ck11zw | How do we know what music sounded like in ancient cultures? | **ELI5:**
We often know what their musical instruments sounded like.
Ancient peoples sometimes left clues about how their instruments were made. Then, a smart man can make a copy of the instrument - and play it! Sometimes, musical instruments are buried with people, and we can make a copy. Sometimes, an old type of... | 9b0881f9-7baa-437d-91dc-d2a2b4740a8a |
ck18cc | How does cryogenic preservation work for both sperm/eggs and entire human bodies/entire human heads? | The short answer is that the process is very similar, but the results are night and day. If you freeze a head, it's *not* coming back using any conceivable technology; it's done. In addition to the reality of widespread cell depolarization and death in the brain, what actually dying doesn't finish, the process of freez... | 99f3ed72-f0b4-487f-a9af-fb9ed9bf067c |
ck1ju4 | How is looking up a hash table O(1), but looking up something in a normal array still O(n)? What's the difference between a hash table and a list of hashes? | Accessing an array is O(1). Perhaps you mean searching for something in an array. If the array is ordered then searching is O(log(n)). For an unordered array the search is O(n).
Hashing means taking the search key and processing it in some consistent way to produce a single number which you can then use as the arra... | 29454bdb-aace-4941-a0e5-55d86d403879 |
ck1jxz | Why do ham and bacon taste completely different when they come from the same animal? | There are a few of different reasons. One is the fat content, the second is how the meat is prepared, another is the location on the animal that the meat comes from.
You can even taste that last factor with other meats, like chicken. Compare the taste of a chicken breast (white meat) to a chicken thigh (dark meat). ... | 6a387357-260a-48a4-b9d9-69ebe18b3c84 |
ck1lgd | Are daily vitamins really that necessary to take? | Some vitamins are not water soluble. For instance, you can take a great deal of vitamin C. You’ll just pee it out. (Extreme doses can cause some discomfort.) However, vitamins A,D,E and K along with others can be very dangerous when misused. Overdose can occur and can have issues from skin discoloration to death.
The... | 73290e49-afc0-43f9-a209-d404cf18dc9a |
ck265w | What are neural networks? | Think of neurons as groups of people in different rooms of a building. Each person is very good at one thing and only one thing.
For example, people in the first room can only smell stuff. And each one can only tell you the probability of it being a certain thing. So one guy can smell and tell you that he’s 40% certai... | 3f30bb9f-3c4c-45cf-ab2e-b9667bd23658 |
ck2aay | Fourier Transforms | The Fourier transform allows a function to be broken down into a sum of sine and/or cosine waves (although e\^i can be used as well) of varying frequency and amplitudes. The goal is to use constructive and destructive interference from the waves to match the original signal as closely as possible.
The frequencies fol... | a979a554-d55c-4e9a-9573-4b87f71967b4 |
ck2c5k | How do they balance planes that have uneven numbers of seats on either side of the aisle, such as 2-1 or 3-2? | Left Right balance is pretty much a non-issue. The people are all very close to the center of mass so it doesn't create much torque even if wildly imbalanced. Adjusting the trim flap a tiny bit on the end of the wing 10+ meters away results in significantly more torque.
Only front back balancing really matters because... | 6fe4e53c-d37c-4d8c-b8a8-ed9e179c4941 |
ck2eh1 | how low pain tolerance and high pain tolerance works | Pain is actually a very complex process. See, what you experience as pain happens in your brain, not your nerves.
Nociception (literally “harm perception”) is the process of a pain-sensitive nerve detecting a noxious stimulus and sending a message back to the brain. All peripheral nerves terminate at the spine, and pa... | f0dea596-61e4-4ccd-83a5-2f14b8fc3583 |
ck2i02 | Why is the water’s surface (in the swimming pool) see-through from above, but is not when looking from underwater? | What you're seeing is called **total internal reflection**, and it's something you learn about in physics class when you study things like lenses and optics. It all has to do with the angle between the ray of light and the surface of the water.
Let's pretend the water is perfectly horizontal, and doesn't have any wave... | 7528d702-ea27-42a3-8fe2-195ef8c156df |
ck30lt | What is the difference between "instantly" and "instantaneously"? | 'Instantly' is relative to a preceding action, similar to 'immediately'. If something happens instantly, it happens right after the preceding action. E.g. 'I clapped my hands, and the lights instantly dimmed.' The actual act of dimming from brightness A to brightness B may take several seconds, but the word 'instant... | f785d612-0c88-4927-ac8a-846b4c634620 |
ck32xs | Why is some light warm and cozy and other kinds are harsh and cold? | Yellow light (warm light) looks like, and remind us of fire, which is warm and cozy.
Blue light (cold light) is more like ice, which isn't as cozy.
This is why different light bring different sensations | 08fb9343-23fc-43a2-a955-4c5c324121d5 |
ck3572 | The difference between daily, weekly and monthly disposable contact lenses. | The products are the same but the difference is in the service level, and therefore the price.
If you buy "daily lenses" and they rot after two days - you are on your own. So, the product costs a little less per lens.
If you buy "monthly lenses" and they rot after two days, the manufacturer is liable for injuring you... | dd14d79f-6448-4e2f-8d94-8f847bc18763 |
ck3ahr | Why steel wool burns the way it does - moving slowly like it's just super hot, but not actually producing a fire | The steel wool oxidizes, effectively becoming rust. As steel requires a shitload of energy to vaporize, it pretty much doesn't produce gasses to burn, so the reaction only happens at the surface of the steel, not in the air around it. Iron oxide is far weaker in tension and shear than steel, so the integrity of the bur... | 18721408-6df9-4609-a299-db274d3cb222 |
ck3tl1 | Why do some plants and fruits grow in certain part of the world but not in others? | Different tolerances to different climates. Some plants need warmth and sunshine all the time and others can do fine up north. | 31dc8461-b8cf-430f-b442-8118d822a9e6 |
ck3u1f | why hasn't there been any attempt to push for an universal language for us to use? | There has been. Esperanto was designed after World War 2 to reduce the possibility of war due to miscommunication. | 9c1ea33f-654b-4a73-92bc-52c9f5b59330 |
ck43eu | Where does the garbage that they clean off of beaches go? | Yes, it just ends up in the dump, unless they bothered sending the recyclables to recycling. Garbage doesn't randomly spread from the dump to other places, it ended up on the beach because people littered there. | 68a70afb-de64-481c-9063-8ff7e9b79859 |
ck4990 | How concerned would a moon base be about an asteroid hitting since the moon doesn’t have an atmosphere? | Not terribly. The Earth is going to be the main catcher of such asteroids. Despite all the pock-marks on that moon, it doesn't actually catch very many of them. It's just the craters on the moon never go away, save when swallowed by a larger crater.
Micrometeorites are a bigger problem (er, rather, a large -er, more c... | 546e1473-e2c7-4bf5-a7b6-24f5419a790a |
ck4iw1 | Airborne ocean dwellers | Escaping predators, showing off for mating purposes, shedding parasites can all be reasons why they leap into the air it is then down to the species and circumstances as to what is the main driver. | 89ced4d0-d04c-49bb-a576-5f63d9e9d59f |
ck4k1v | How does a ballbot (a robot that balances and navigates on a single ball) stay balanced? They look like they could easily tip over. | Have you ever tried balancing a long pole or stick on its end with your hands? You have to move your hands towards the direction the stick is falling to keep it upright, and with a little practice your can do so pretty reliably, even while you walk around.
Now imagine if we replace your hand with a motorized ball, an... | b71f19b4-079d-48d9-9d67-b938329241f4 |
ck4ozq | What is the physiological process of emotional tears? | Tears are all produced by the lacrimal (lachrymal) gland, but psychic tears (sad tears) also coincide with other bodily responses, due to their production being driven from the hypothalamus in the limbic part of the brain. - _URL_0_ | 9bd0ce13-c9e9-4358-b609-817e84b99c1c |
ck58ym | Why is that usually the richer people get, the more conservative they become politically? | Once you have something to lose you May begin to feel threatened by the “takers”...or something like that. | e137cf8c-d85c-4a66-894d-3b8badfed4b4 |
ck5dks | Why aren’t all American kids educated equally in America? | In most areas, the school system is supported by local property taxes, so if it's a poor/rural area, the tax base won't be as big. | 292257ac-6800-4563-ae59-5f5e8ca275ee |
ck5e9d | Why do some parts of the body burn/tan more easily than others? | Thin skin can sunburn way faster. Because there is less area /depth to absorb the energy. Thin skin also has less hair to protect it. | bc66c345-0966-429e-8528-8ede349eb7af |
ck5oep | Why do the nails on my ring fingers grow faster than the other nails? | > ELI5: Why do the nails on my ring fingers grow faster than the other nails?
You're weird
Just kidding. Most of it has to do with blood circulation. Some people's fingernails grow at different rates. Some people find that different fingernails on one hand grow at different rates . Some people find that their finge... | 5b3ca98d-5af8-40b3-8548-cf7e7f27d10f |
ck5ofr | - Why is the process of cooling products down so much slower than heating them up? | The speed of heat transfer is proportional to the difference in temperature between two objects, which means how long it takes to heat or cool something is (non-linearly) proportional to how large a temperature difference you can make between the desired temperature and the heat source/sink you're using. (It's also af... | a6fc4934-753f-4d54-a716-4177fb5bde8e |
ck6ajk | Cognitive Behavioural Therapy. | It's essentially talk therapy for a current issue you're having where your counselor makes you categorize the issue into thoughts, actions, and emotions and then address how each of the three relate to the other until you've realized where the unhealthy aspect of the problem is and rationalized your way out of it. Its ... | 07bc1f28-195d-46f5-ad15-32529918e51b |
ck6lon | I understand that caffeine works binding to the same receptors that our natural sleep inducing chemical binds to, thus blocking them and making us feel less sleepy. How then, can you overdose on caffeine? It shouldn't quicken you up more than it should stop you slowing down or what? | Caffeine does a lot more than just block sleep hormone receptors. It is also a stimulant which works by forcing a fight or flight response from your body. This is why caffeine not only prevents you from getting tired but actively perks you up. The fight or flight responses are what can cause the adverse health effects... | 2b6e79f9-f72f-4b3f-a53a-b573375f962e |
ck6o16 | As breasts are designed to feed babies, why do women have two instead of just one? | Average litter size rounded up to the nearest even number because symmetry is easier to code for.
Mammals that have more babies in a litter have more nips | b230a1df-2f7d-4f18-bd3f-a0d50eb25ec6 |
ck71qv | Why can American workers lose their pensions when employers go bankrupt? | Pensions and 401ks are different.
Pensions are paid by your employer. Every payday you make $2000 and your employer kicks in an extra $25 and when you retire you can draw off that fund that's been building since you started working there. And typically there are rules that say when you retire your pension will be at ... | 911fb316-aa2f-409d-ab81-aca6f11f19a0 |
ck72rp | Why does faces start to morph and distort in weird ways when you stare at them for a long time? | The main theory is called disassociation fue to lack of stimuli.
To put it simply, your brain is designed to take in the world around you and process it. When nothing is happening your brain basically gets bored and starts acting up. The reason faces get so weird is because of the amount of information in a face, the ... | 622509eb-98e2-4255-9e6a-58917b981fb0 |
ck7dlr | Why does spinning around make you dizzy, furthermore why does being dizzy make the floor feel like its moving around? | When you swirl a glass of water, then stop suddenly, the water inside keeps swirling. There's a similar sort of thing inside each of your ears. As you spin, you're swirling the water inside those structures. When you stop, the water keeps swirling, so your brain thinks that you're still spinning.
In response to that s... | 10b44bc5-d155-4dd0-823a-6445cdb00619 |
ck7r86 | How are plant based meats and burgers made? | I did a course on plant based meats in Berkeley. It was an engineering course so I’ll focus on some technical details.
So the main idea for plant-based meat (PBM) is to find a source of protein that has similar nutritional value as meat, and optimally the same taste, texture, colour and smell.
A popular material for ... | b12e70fa-1f01-4e20-a157-1d3a169aa923 |
ck8aey | What is the difference between algebra and calculus? | Algebra deals with numbers, and formulas / equations / relationships between numbers. Calculus deals with functions, and relationships / transformations between functions.
Basically, algebra is "basic math"; you have numbers and you have rules about what it means to add, subtract, multiply, etc. You establish equati... | 554bd8ce-9039-4081-ad65-52d1b387a3de |
ck8cze | Why do muscles stiffen and lose flexibility? And why does stretching sometimes feel good and sometimes hurt? | Lots and lots of reasons. But ELI5. Muscles get stiff because they get used to being short and all the fibres get tighter and closer together. It can also be because of literal knots in the muscle. Imagine you cut a piece of string in half, to make it whole you have to tie a knot in it. The string is shorter but i... | 0d61e5b6-d2b8-4e8f-9468-c303ddda5bca |
ck8f6t | What is plaque next to teeth, how is it created? | Plaque is a thin layer of bacteria eating the sugars in your mouth.
It is linked to diet generally. More sugar = more plaque.
I think mouthwash just kills the bacteria. I don't think it washes away plaque. Maybe it does idk.
If you brush/floss often enough and don't eat too much sugar, you'll be fine. If not, that... | 4d84b392-8892-493b-b037-7db57ea18fb1 |
ck8i2v | If somebody spits at a crime scene before it takes place and they swab it by accident, could they be charged with DNA evidence? | It possible they would be identified & questioned but if they had reasonable explanation of how spit came to be at the scene & there was no other evidence connecting the spitter to the crime then it highly unlikely they would be considered a suspect let alone charged because the spit alone would never be enough to ... | edff05e2-1b11-4c20-a2a4-d8365b48f4cd |
ck8rld | If cold air condenses, how can it be true that the lower the pressure gets the colder it is? | Imagine your body has the same properties as air and I placed you into a box that you fit into perfectly. I cool you down, you condense (take up less space) and as such, your body stops touching the wall of the box and you have more room to wiggle.
Now say I heat you up and you expand, you're going to start pressing u... | cf30c329-ec8a-4c29-91ca-681a91b4fa10 |
ck8y1x | why does US employment law allow such incredible insecurity? | It's actually worse than you think.
The two week notice is a common requirement for the *employee* to provide the *employer*. IE, if I am an accountant at a company and I want to gracefully quit my job to take employment somewhere else, I should provide a two week notice to my boss.
But in most, if not all, states, t... | 06435527-48ae-4f6f-99c4-7df810e6337b |
ck97fu | How does our body REALLY react when we starve ourselves or consume way too few calories a day for a period of time and how come it essentially leads to weight gain most of the time? | Your metabolism will adjust to however many calories you feed it. Up to a certain point. Extreme starvation will put the body into starvation mode or a low metabolic state. Once you've reached this mode and you start eating normally again it takes time for your body's metabolism to adjust. | d158351b-0a70-4c11-94b4-f06d6d4d5d5a |
ck99u2 | Explaining a Sonic Boom | Its important to remember than a sonic boom is not an "explosion" or event that happens at the moment you break the sound barrier. This seems to be a common misunderstanding. As an aircraft travels through the air above the speed of sound, it creates a very high pressure shock wave that trails behind it in a cone shape... | b0d78a4e-9272-437a-84ca-4262917a4164 |
ck9c0p | Can you get diabetes if you eat sugar daily but always burn it through sports and endurance exercising? | Yes and no.
Yes because anyone can get diabetes. There are multiple types. Type 1, also known as Juvenile Diabetes because it normally develops in children, is when your immune system attacks the insulin producing cells in the pancreas. Type 1 diabetics will need to inject insulin for the rest of their life.
Type 2... | d2569e54-d4aa-40af-9874-5fa30c4f3e15 |
ck9cjc | Is the seasoning or the noodles unhealthy in Instant Ramen? | It's both. The noodles are deep-fried prior to being packaged which makes them high in calories and saturated fat. The season packets use a ton of a salt because it's an easy way to enhance the flavor for cheap. Both are bad independently, so together they are worse.
Don't believe the msg hype, unless you have a parti... | 24386dc6-342d-42c4-a2a1-b1963b8a9785 |
ck9elh | how come the Alphabet and Cyrillic share so many letters that are either identical or very similar looking, and are sometimes pronounced the same/similar and sometimes not? | The *Latin* alphabet and the *Cyrillic* alphabet are both based very heavily on the *Greek* alphabet.
Which is why "a" (alpha) is the same in all three, and why "gamma" is a г or "rho" (Р) are the same in Cyrillic and Greek.
Historically, Slavs adopted a form of Greek Orthodoxy (one major branch of Christianity), bu... | f617d548-1b28-49f9-a0f0-9e4186dcc6ba |
ck9fpk | Why don’t muscles show up on X-Rays, but do on MRIs? | X-rays are effected by dense substances like bone so they are clearly defined on X-rays. MRI or Magnetic Resonance Imagers work by vibrating molecules under a powerful magnetic force show entirely different views of the body - _URL_0_ | 04d773fc-bcd4-4077-aba1-d0e149522a2b |
ck9hd8 | Why does poured liquid drip down the side of a pitcher if not poured at a sufficient angle? | Water really likes to stick to things. When you pour at an angle, the force of gravity is more than the sticking force, so it just falls. But when you tip it just a little, the water will pour over and cling to the surface, and hold on as long as it can. | 91a50f15-fda7-481c-8bb1-be67ba5195e9 |
ck9hf2 | Does weight lifting damage your spine? | Not really... Unless you're using improper form (thus putting extra stress on your spine instead of your muscles and joints), lifting too much for your ability level, or are pushing your body to the extreme. | da924a6a-3061-4e96-be5d-4decd61de230 |
ck9wfd | Why are USB drives default to FAT32 and not NTFS? | Supportability
NTFS is only semi-supported in operating systems other than Windows. Linux and BSD have a free and open-source NTFS driver, called NTFS-3G, with both read and write functionality. macOS comes with read-only support for NTFS; its disabled-by-default write support for NTFS is unstable. | 3594a2b6-dc02-4dea-b6aa-d20a3ef5c374 |
cka2fy | What is the difference in viewing experience in a theater between 35mm film and digital | It's a completely different process. Each has unique artifacts that the other simply can't reproduce. It's also a function of the cinematographer, who may or may not choose to use the media's artifacts for artistic reasons.
35mm film can exist with several different aspect ratios, through the use of special projecti... | 549b41d2-6205-4116-beb6-2befd53945de |
cka9dc | How are schools of fish so organized with their movements if they don’t make noise and can’t communicate? | Fish have sensory organs along the sides of their body, called the lateral line, that can detect changes in water pressure. When one fish turns, it creates vibrations in the water other fish react to, maintaining their schooling pattern. | 8db3e60c-a656-4b6a-9a6d-a9677e6fb35a |
ckaww5 | Why does macaroni and cheese lose so much flavor when refrigerated then reheated? | When you re-heat things in a microwave, water molecules are what absorb the microwaves and receive the energy. With things like cheese, that makes the water kind of separate out and makes the cheese more 'soggy and stringy' instead of 'foamy'. Texture changes taste.
If you re-heat your Mac and cheese in an oven in... | d44a08df-8c59-4c67-8414-82e91190290f |
ckaykb | why does eating unhealthy foods make your body crave unhealthy foods? | One simple mechanism is due to blood sugar levels.
Most of your body can burn sugar for fuel, or other stuff. Your brain can only use sugar (with a few exceptions).
To keep your muscles and whatnot from using up all the blood sugar and killing you, your body uses insulin as a signal for when it's ok for the rest of ... | bb5784c3-7cd2-421a-8720-5bb5ee14c356 |
ckb52a | Why are muscles sore the first time you work out after a long period of inactivity but not the second time? | We do not have a very strong understanding of [Delayed Onset Muscle Soreness (DOMS)](_URL_0_). The leading theory is the pain is the result of the small tears your muscles which occur during the part of movement where your muscle is contracting but lengthening (eccentric phase). Muscles can only contract (shorten) but ... | afa315c7-6720-4a91-a26e-8b1bc3f66702 |
ckb9ac | how those catfish bots on dating sites work, how are they coded and implemented | Bot bot = new Bot(’Tiffany’);
If(guy) {
bot.swipeLeft();
bot.say(’hi there stranger wan som fuq’);
If(guy.answer === ’yes plz’) {
bot.say(’plis snd credit card detailz’);
}
} else {
bot.swipeRight();
} | d7e9c22f-72c9-4ea3-b056-9c52edd5de09 |
ckbfku | Why are darker surfaces more reflective (like black cars vs. white cars), when a typical mirror seems very light and bright? | Actually the reflection comes from the gloss layer, outside the colored layer.
But when the colored layer is light (white, yellow, etc.) its brightness makes it hard to see that reflection. When the colored layer is very dark, it doesn't interfere with your seeing the reflection. | dd4f4292-e725-4bff-8ead-bd23bdcb2dfc |
ckbhky | How do TV channels/shows generate revenue by views and ratings? | Good show = more viewers = more companies wanting to pay for advertising spots during commercial breaks = DOLLAH DOLLAH | d6882dff-0d6b-47ff-be2b-bd0388e81536 |
ckbs96 | How or why does the pole disappear in those awesome gopro videos? All I ever see is the person holding something or a fixed point on the body, but nothing is visible. | One of the comments in your link mentions the insta360 camera rather than a gopro. It edits out it's own handle from the video. | 46975f11-6b40-48ed-a606-805e2802d99f |
ckbwsd | Why does the earth-facing side of the moon have more craters than the 'backside'? | According to [NASA](_URL_0_ ) this is completely wrong. The far side has more craters, because the near side has thinner areas of crust and more extensive volcanism where lava flows "erased" some of the carters. | 0980a86f-d3c3-459b-861d-cf85b63f21d9 |
ckc0dh | Why are online password managers so much safer than writing passwords in a book that’s kept in a safe place? | This is an example password that my password manager makes: xmJWI#Nrjmx7oXu%hLmc70mU$\*zi9U
Every place I have a password for has a password like that (or as long and complicated as they will allow) that is unique.
I change them all frequently.
Are you /really/ going to make, update, remember and consistently use r... | 996bcce3-ea66-475a-9600-330c4a942c35 |
ckc9ug | Why are all negative temperatures hotter than the Planck temperature? | So here's the thing:
Temperature is caused by how much energy atoms have. Atoms like to move, but since they're so small you generally don't see it. The more they move the hotter they are.
If they reach a certain temperature they break atomic bonda and change phase. There are many phases of matter but the four ones y... | 575ff240-d976-4ba9-a564-36c7b82d4731 |
ckceyk | Why do 12 hours at home fly by for me, yet 12 hours at work seems like an eternity? | I’d assume its because your mind at home is occupied by leisurely activities, whereas at work you’re occupied with things that are generally not interesting to do. Therefore, it seems as if you’re spending a greater deal of time doing something at work | fa32d4dd-f0dc-456e-8d6d-15e00c3455d1 |
ckck92 | What are tears made from? | They are mostly water and salt, both pulled from the blood supply by the tear glands that exude them. You will find that most things in the body use blood to move their supplies around the body. | eb5a3474-4e7a-43db-9211-c143288b500f |
ckcnnv | Why do airplane passengers need to turn off cellphones or electronic devices while a plane takes off/lands? | Its nonsense. Its based on old avionics devices that could have radio interference , afyer that it was because "holy shiit you never know". but today's technology has changed the game. Did years ago. | 09e3951d-3f08-49cc-848f-093b7f244850 |
ckd2tt | how are molecules and atoms studied? | A lot of discoveries are made using very very clever experiments. Take the nuclei of the atom, how do we know it is there if we can never see it? we can take a small sample, and place it in the centre of a ring of detectors and fire particles at it. If the atom is a blob of protons/electrons (plum pudding model) then w... | 45a0e7da-25c0-4a18-b7ae-94c3cf3434eb |
ckd7dl | why are my pasta leftovers oily when reheated | The oils were originally mixed with the sauce. When you let the pasta settle, the oils and melted fat will travel to the top surface of the dish because they are less dense, much like letting a bottle of salad dressing settle until the oils form their own layer on the top.
When reheated, the oils and melted fat remain... | a6a1f486-e81e-443c-8e07-4163985c3a81 |
ckddwy | Why do automatic payroll systems round up or down to the nearest half hour or quarter hour? | Saves the company money by paying people 8 hours when they actually clocked in at 7:57 and out at 4:03.
It's only 6 minutes a day, but that's over 26 *hours* a year. Per employee.
Also removes the incentive for employees to intentionally do this to game the clock. | b3f2edbd-0830-47ee-afab-cc20e2e86823 |
ckdg2d | how does medication half-life work? | As the other poster mentioned, you can get down to a point where either the last molecule decomposes, is removed, or is no longer detectable. In practice, the rule of thumb is that the drug has been functionally removed from the body after about 5 half-lives. | f1074cff-a2e1-4f1f-9afa-6dbb3c4b8c17 |
ckea12 | How are different forms of medication "activated" by the body when taken simultaneously? | Med student here. Any medication you take by mouth is going to go through a "first pass" effect. It won't get fully absorbed, it gets broken down by your liver, etc so it never actually reaches general circulation in your blood.
Many oral medications are actually 'activated' by stomach acid, the low pH makes it easie... | e602c696-a66d-41f4-8921-f74b232630ff |
ckeahe | What exactly is a pyramid scheme? | A pyramid scheme is a money-making venture built on lies.
The guy who makes it recruits a few people for a fee, who each recruit a few more. The new recruits are the source of income for the whole company.
It's called a pyramid scheme because, like a pyramid, it has a large base leading up to a single point.
And the... | 77e9bb56-2dea-432e-9f83-b4f33d65d098 |
ckebnv | What does it mean that a human shares approximately 50% of their DNA with the "parent" even though all humans share over 99.9% of their DNA with each other? | We as humans all share the same genes. For exampe each of us has a gene for hair, eye color, height (just for simplicity lets imagine they are all a result of one gene)
Each of those genes though has different varieties. These varieties are called alleles and these are the reason why although we all have hair...each o... | da05a9bb-6b72-4a59-b135-332c556de75c |
ckehsw | If you throw a cantaloupe in the air in a fast moving car, why does it go straight up and down and not backwards? | Because everything in the car when you were holding it was moving (let's say) 60 miles per hour. When you throw it up, it's still moving forward at 60 miles per hour, the same as everything else in the car. | d392ab43-bb1e-4044-803d-fdc278aa3a3a |
ckerax | Why/how does a song make you tear up (usually wistfully) even if/when it's the first time you hear it? | Music causes activity in the amygdala and hippocampus, two parts of the brain intimately associated with emotional processing.
Some people say we aren't actually feeling "emotion" in the traditional sense, but rather building up tension and experiencing relief, either good or bad depending on how your brain expected ... | d7945a4a-a77d-42d4-8085-f83995545a84 |
ckev32 | How does the deja-vu works ? | Like most things with our brains, we don't really know. But we have some ideas.
One idea is that it's a almost kinda like a siezure, a bit of uncontrolled electrical activity (please note that having deja vu doesn't mean you have epilepsy or something similar, it's more like when you're falling asleep and then feel l... | ae643439-b889-40ff-b034-fcf9f39bdfa3 |
ckev6w | The Fed cut their rate by 25 points, what does this mean for the average American & their mortgage & credit card rates? | For the average american it means absolutely nothing. Zero. Nothing at all for average people.
First of all the change was very small, and second, this is more macro economic (think "big overall economy stuff", not your job or buying a sandwich). It will likely have just about zero effect on each individual person, ... | 3c3bf51c-5adc-42e2-9e7b-52c5d47bce6b |
ckewxn | If the light switch is on but the bulb is dead, is power still being used? | It can’t be a full circuit if the bulb is broken, so no. It’s as if a switch is off and the circuit just doesn’t complete. | 186c87ee-171e-4f93-9d64-2f6d74dcd165 |
ckey13 | Why is it okay to eat mayonnaise - which contains raw eggs - but not cookie dough, which also contains raw eggs? | Because mayonnaise has been pasteurized to remove bacteria from the raw eggs. Your cookie dough has not. | 56cdff87-d688-4b2a-91e9-230d64784f1c |
ckez02 | When there is a security breach that can result in identity theft, why can't the government simply issue new SINs and close down the existing ones? | Because that would be a major logistical nightmare. SSNs are unique and so ingrained into the USA that being able to change it would create it's own problems that there is no process in place to handle. Not to mention that by changing a ssn could itself lead to fraud and identity theft as there is a limited number of... | 6406b372-a740-404b-8993-b28fbdba97c7 |
ckfb90 | why fleas don’t infest hairy parts of humans. | They do. Humans can get and carry fleas just like any other fuzzy mammal. That's how the Bubonic Plague spread, fleas and rats. | d756035d-a9a1-45d7-8fc6-b1bdff9d4f76 |
ckfcyr | How do All-Female lion prides form? Can male cubs grow to be leader? | There are lone males who are wandering around who challenge for leadership of prides and a vacant space will rapidly be taken by one of these. | 84052ad1-233e-4779-a429-dbebe28dec95 |
ckfi27 | how do scientists determine the age of cave paintings? | Lots of ways.
If the pigments were made from something that was once alive, then the pigments can be dated using radiocarbon dating. A certain form of carbon decays at a set rate, and since the living thing only adds carbon to itself when its alive, you can track the ratio of radioactive carbon to regular carbon and ... | 55266dc7-c41b-4639-90d1-8480b71dc590 |
ckfiut | How does the heart regulate its beat so perfectly? What is happening to this system when we have palpitations? | Your heart has pacemaker cells that can actually regulate the heartbeat themselves without input from your brain. They start the electrical signal within your heart to beat, and they do so with awesome precision and rhythm. The signal then travels down your heart through a pathway made for those electrical signals, and... | 8fd817bc-eb82-46df-ac0d-9172b4abea82 |
ckfqpj | Does using a fan make dry eyes worse? + tips on healing dry eyes please | I am living with severe dry eyes and I can’t have a fan running in the room without it making my eyes worse. Can you get a window air conditioning unit? I’m not sure there is a “cure” for dry eyes. Try using a drop with castor oil in it, that may help. | 10201076-fa6b-4fdc-ad49-4013df14a84e |
ckfrwx | Do we all see the same color or my red can be your blue? | Most likely that we all see colors the same since we all have similar structures in our eyes and brains to receive and process visual information. However, there's no definitive way to prove it. | 4215270f-f432-4016-955a-6d6250208e94 |
ckfv7s | what does that often blue tape that athletes put all over themselves do and how does it work? | It's called Kinesio tape.
Its supposed to support muscles and potentially improve performance and help prevent injuries and help in injury recover. I'll stop explaining what its supposed to do or how any more because of something else associated with the tape:
There's little evidence it works at all, and plenty of ex... | 429133d0-312c-4d51-95af-e5ba93ba81b3 |
ckg0co | If cells die of age, where do new ones come from? | That gets a bit complicated because it depends on the organ.
A lot of organs in your body (skin, intestine, stomach...) have a layer of cells that are capable of dividing indefinitely (well, at least until you, as a person, pass away) to keep the organ healthy. The big problem with these cells is the further along the... | 5853c4ca-d4f4-4d49-b532-e7f9c4cd0c00 |
ckgagf | why the future of the planet depends on saving the bees. What makes bees so special in nature? How do we actually save them and why are they dying? | Why are they important? One world: pollination. All crops need to be pollinated to produce. A tomato plant or strawberry plant that goes un-pollinated will never fruit. Most of our food is bee-pollinated. The "how we actually save them" is a tricky question and "why are they dying" is even trickier to answer! Scientist... | 17acca72-474f-49aa-bf72-8f86ba93616f |
ckgil4 | Why can people with Alzheimer's easily remember their childhood and young adult life but not recent events? | It could be that long term memories are stored in the frontal lobe of the brain and Alzheimers first targets the hippocampus, which is responsible for memory reconsolidation (the creation of long term memories from short term memories) | c56d5bf6-00f6-4c5c-9d00-b81f62aae70e |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.