text large_stringlengths 148 17k | id large_stringlengths 47 47 | score float64 2.69 5.31 | tokens int64 36 7.79k | format large_stringclasses 13
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The following information has been adapted from National Aeronautics and Space Administration. 1978. The Nimbus 7 Users' Guide. C. R. Madrid, editor. Goddard Space Flight Center.
Launched on 25 October 1978 from Vandenberg Air Force Base, California, the Nimbus-7 spacecraft was the last in a series of operational weath... | <urn:uuid:fbc17e6b-8eb3-4159-a8db-3a0a374ad134> | 3.390625 | 1,197 | Knowledge Article | Science & Tech. | 35.992602 |
The most recent El Niño event began in the spring months of 1997. Instrumentation placed on Buoys in the Pacific Ocean after the 1982-1983 El Niño began recording abnormally high temperatures off the coast of Peru. Over the next couple of months, these strength of these anomalies grew. The anomalies grew so large by Oc... | <urn:uuid:bd4e4d26-ab29-41a2-a74b-a790f4de7fc7> | 3.34375 | 145 | Knowledge Article | Science & Tech. | 46.765577 |
The Photonic Research Institute (PRI) of the National Institute of Advanced Industrial Science and Technology (AIST), an independent administrative institution, has found that introducing a nano-structured layer (i-layer) where organic semiconductor forms a 3-dimensional p-n junction at the molecular level into p-n jun... | <urn:uuid:427bc082-c270-4d14-8491-8e549d0a87d8> | 2.796875 | 693 | Knowledge Article | Science & Tech. | 21.284318 |
Provided by Allen Browne, November 1999.
Here are some common mistakes newbies make with Nulls. If you are unclear about Nulls, first read Nulls: Do I need them?.
If you enter criteria under a field in a query, it returns only matching records. Nulls are excluded when you enter criteria.
For example, say you have a tab... | <urn:uuid:a1d1df28-3dc7-4ea0-8045-c821679ea48c> | 3.015625 | 1,159 | Documentation | Software Dev. | 62.660184 |
More Evidence That Intelligence Is Largely Inherited: Researchers Find That Genes Determine Brainís Processing Speed
ScienceDaily (Mar. 18, 2009) ó They say a picture tells a thousand stories, but can it also tell how smart you are? Actually, say UCLA researchers, it can.
In a study published recently in the Journal of... | <urn:uuid:a9e399b0-8432-460a-aeaf-c48ae9fa6023> | 2.984375 | 247 | Comment Section | Science & Tech. | 29.769911 |
Europe's Unexpected Immigration Problem - Wildlife!
Animals and plants brought to Europe from other parts of the world are a bigger-than-expected threat to health and the environment costing at least €12 billion a year, a study said on Thurday (21 February).
More than 10,000 'alien' species have gained a foothold in Eu... | <urn:uuid:bcf8d624-bf5b-40ad-9dd5-8e94946590c6> | 2.96875 | 312 | Truncated | Science & Tech. | 36.672486 |
Contact: Patrick Farrell
Boston University Medical Center
Caption: This is an image of Mercury's tail obtained from combining a full day of data from a camera aboard the STEREO-A spacecraft. The reflected sunlight off the planet's surface results in a type of over-exposure that causes Mercury to appear much larger than... | <urn:uuid:634ac6e9-0f2d-42e9-b901-592d9be514b5> | 3.515625 | 128 | Truncated | Science & Tech. | 20.12827 |
This post will be explaining the Java’s Stack implementation. Last in first order policy is used in Stack in which one by one elements get inserted in a sequence which could be retrieved later on in reverse order. Use these 2 methods to insert or read the elements to/from the Stack.
Code is given below to show the impl... | <urn:uuid:a9097c05-e180-49d4-b725-a6511a95effb> | 3.453125 | 194 | Documentation | Software Dev. | 48.240711 |
Vertebrate mitochondrial DNA (mtDNA)
The mtDNA genome is a small, circular
molecule, about 16 ~ 18,000 base pairs in circumference in most
The genome comprises 13 protein-coding regions,
rRNA genes, a replication control
and 22 tRNA genes. The order of
is broadly conserved across vertebrates. There are no introns: spli... | <urn:uuid:4880f6ca-cde0-4e1f-8eaa-913a3b1da49b> | 3.265625 | 250 | Knowledge Article | Science & Tech. | 25.705985 |
Nearly one quarter of the world’s coastlines are dominated by the highly productive brown algae we know as kelp. Kelps serve a myriad of roles for humans – from providing food to sheltering shorelines from stormy waves. The startling diversity of life that dwells in these kelp forests provides joy to avid divers, fishe... | <urn:uuid:04485023-d3c8-4630-8468-9999b85aa153> | 3.46875 | 169 | Knowledge Article | Science & Tech. | 43.98587 |
Whenever you are presented with a problem of modeling some numbers in conceptual space, the first thing you have to figure out before you write a single line of behavioral code is what kind of data structures you are going to use. Going all the way back to the beginning of this blog, I've emphasized the importance of c... | <urn:uuid:9e99efc2-a3b1-42e6-b679-806091a10d72> | 3.828125 | 1,034 | Personal Blog | Software Dev. | 53.519693 |
Project: SAFARI 2000Project: SAFARI 2000
The SAFARI 2000 project was an international science initiative to study the linkages between land and atmosphere processes in the southern African region. In addition, SAFARI 2000 examined the relationship of biogenic, pyrogenic, and anthropogenic emissions and the consequences... | <urn:uuid:007c9f17-0be1-429d-b36f-058ace96daa8> | 3 | 737 | Academic Writing | Science & Tech. | 44.692822 |
Date of this Version
Currently, the Northern Eurasia Earth Science Partnership Initiative (NEESPI) includes over 120 international projects involving more than 200 scientific institutions from over 30 countries. The program involves national government agencies, academia and private organizations in the U.S., Europe, J... | <urn:uuid:1093febc-f8e0-4f2d-93d9-21b3de01c821> | 2.96875 | 331 | Knowledge Article | Science & Tech. | 28.844986 |
Our most reliable engine of change has been increased understanding of the physical world. First it was Galilean dynamics and Newtonian gravity, then electromagnetism, later quantum mechanics and relativity. In each case, new observations revealed new physics, physics that went beyond the standard models—physics that l... | <urn:uuid:b38c91c8-3996-414a-94dc-28606a119075> | 3.25 | 612 | Nonfiction Writing | Science & Tech. | 31.647043 |
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This class allows Gambas
programs to communicate using UDP sockets.
It can be used like a server or client, as each data fragment sent or received is identified with its host IP and port.
This class inherits from Stream
class, so you can use standard stream
methods to read, write and close the s... | <urn:uuid:337084c6-b617-4ed3-b4c8-a8ed57917066> | 2.8125 | 111 | Documentation | Software Dev. | 73.858962 |
The vast majority of scientists agree that human activity has significantly increased greenhouse gases in the atmosphere—most dramatically since the 1970s. In February 2007 the Intergovernmental Panel on Climate Change found that global warming is "unequivocal" and that human-produced carbon dioxide and other greenhous... | <urn:uuid:5073fa4c-542b-4eb6-99cb-6a8c62739a6e> | 3.6875 | 912 | Content Listing | Science & Tech. | 21.909865 |
Quantum mechanics: Suppose that there is a particle with orbital angular momentum $|L|$. But the particle also has spin quantity $|S|$. The question is, how do I reflect this into Schrodinger equation? I do know how Schrodinger equation becomes for each case - when a particle has particular orbital angular momentum and... | <urn:uuid:cd70b70a-ec17-4737-a52b-2d991eb734c5> | 2.75 | 196 | Q&A Forum | Science & Tech. | 49.699592 |
I understand that the Bernoulli effect is a flawed explanation for the cause of lift, and does not cause much at all, but how much?
Is there any experimental data on the force caused by the Bernoulli effect? Maybe implicitly through data of the pressure difference between the top and underside of an aeroplane's wings. ... | <urn:uuid:808b65f8-7502-45e9-9eb9-f559b59fae84> | 2.796875 | 150 | Q&A Forum | Science & Tech. | 39.890977 |
The universe is constantly being created—and destroyed. Discover how these processes work, and how they may hold clues to how the universe began.
More About the Universe
Details of the big bang are obscured by billions of years of cosmic history. But high-tech orbiting telescopes are lifting the veil on our universe's ... | <urn:uuid:ca4a78e9-2878-4d74-8463-47ef8a09379b> | 3.75 | 275 | Content Listing | Science & Tech. | 50.730103 |
It was a bit late (or the scientists were premature) but the Redoubt Volcano has finally begun erupting. (See my previous post for context.) You’ve probably heard the top news on this by now. Here are tidbits that might have been lost in the headlines.
- As of noon today (Tues, 3/24), there had been six eruptions. Tues... | <urn:uuid:963a5ee2-20a7-48cb-bd99-91868d8a4a74> | 2.8125 | 255 | Personal Blog | Science & Tech. | 61.904765 |
Homes and buildings chilled without air conditioners. Car interiors that don’t heat up in the summer sun. Tapping the frigid expanses of outer space to cool the planet. Science fiction, you say? Well, maybe not any more.
A team of researchers at Stanford has designed an entirely new form of cooling structure that cools... | <urn:uuid:9d742c81-986f-4e8b-bdad-f5123666884e> | 3.03125 | 1,113 | Content Listing | Science & Tech. | 47.650818 |
Physics & the Detection of Medical X-Rays
Röntgen's accidentally discovered of the radiation which he
called "x-rays" and is now called Röntgen rays in much of the world. This
discovery can offer students a good understanding of how
scientific discoveries occur. The Web has several sites which include
excellent picture... | <urn:uuid:900342af-b8bc-4578-8d52-366ccd9a637a> | 3.21875 | 547 | Content Listing | Science & Tech. | 47.773735 |
Common names: Spring Cankerworm, Inchworm, Measuring Worm
Scientific name: Order Lepidoptera, family Geometridae, Paleacrita vernata
Size: Adult--1/2" to 1", larva 1"
Close up of an adult female cankerworm moth (R. Childs)
Three fall cankerworm larvae. Note the 3 pairs of prolegs.
Identification: Adults are light brown... | <urn:uuid:08f111f3-58b3-4939-9725-3ed0d323a443> | 3.5 | 486 | Knowledge Article | Science & Tech. | 61.621981 |
Particle of charge q is brought from A to B, following the path as a sinusoidal function, and then find the work done in doing so? The point ?A?, is ?r?, distance from the infinitely long linear body given in figure.Write with the correct explanation for the answer.
Please find the figure in the attached file.
However,... | <urn:uuid:aebd4818-20f9-4070-92de-9ec306d2a934> | 3.4375 | 173 | Tutorial | Science & Tech. | 64.924545 |
minimum returns the minimum value from a list, which must be non-empty, finite, and of an ordered type. It is a special case of minimumBy, which allows the programmer to supply their own comparison function.
The least element of a non-empty structure.
The minimumBy function takes a comparison function and a list and re... | <urn:uuid:e74c99c7-60a6-486c-ad1d-f4856c8dfa7a> | 3.046875 | 166 | Documentation | Software Dev. | 55.940011 |
Superheros or super beings: where is evolution taking us?
Humans are constantly evolving but the laws of physics mean we won't suddenly develop X-Men-like abilities
Natural selection continues apace in nature, but modern medicine is subverting the process in humans, writes DICK AHLSTROM
Birds do it, bees do it, but do ... | <urn:uuid:83a4ef99-892d-4155-a75f-36b014a84ef2> | 2.953125 | 738 | Truncated | Science & Tech. | 42.446651 |
The average temperature of the whole surface of the World Ocean is ~17.5°C. The highest temperature, >36°C is found in the Red Sea and the lowest, <- 2°C, has been observed in the Weddell Sea. Water temperature depth distribution depends on the amount of solar heating of the Ocean surface and intermixing of water masse... | <urn:uuid:f76c1e6d-2889-4ec8-b3ca-565012350007> | 3.59375 | 211 | Knowledge Article | Science & Tech. | 52.421785 |
Search our database of handpicked sites
Looking for a great physics site? We've tracked down the very best and checked them for accuracy. Just fill out the fields below and we'll do the rest.
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155 are Websites,
2 are Videos,
and... | <urn:uuid:bda60958-5c37-4bdf-a7f9-5b48e958a1cb> | 3.109375 | 293 | Content Listing | Science & Tech. | 56.48756 |
As you'd probably know, in the simplest terms a servlet is a java alternative to CGI. It is used for dynamic content presenation of content over the web. In this process a servlet can perhaps pick data from a database, refer other classes/beans for performing computations, some legacy app, or even some other servlets a... | <urn:uuid:cbf435c1-4754-4cef-83a4-7e27f9bdac85> | 3.546875 | 404 | Comment Section | Software Dev. | 60.870085 |
|Elizabeth White, Mariana Trench Vehicle, The Cape and Islands NPR Stations, 4 December 2006|
The Mariana Trench in the Pacific Ocean is the deepest point in the world's crust. The trench plunges 11,000 meters below the ocean's surface, and is deeper than Mt. Everest is tall. The trench was surveyed by the Royal Navy i... | <urn:uuid:1b078b47-45f4-4f7d-836a-59ca0f9ec1f1> | 3.546875 | 152 | Truncated | Science & Tech. | 53.550811 |
A target specifies a product to build and contains the instructions for building the product from a set of files in a project or workspace. A target defines a single product; it organizes the inputs into the build system—the source files and instructions for processing those source files—required to build that product.... | <urn:uuid:6b5f7001-f006-4b76-973d-125ed091dcb6> | 3.390625 | 341 | Documentation | Software Dev. | 39.551258 |
||This article needs additional citations for verification. (March 2011)|
|SI unit:||m / s|
In kinematics, velocity is the rate of change of the position of an object, equivalent to a specification of its speed and direction of motion. Speed describes only how fast an object is moving, whereas velocity gives both how f... | <urn:uuid:35c2dfd5-c3ee-4491-a3af-a6736c170583> | 4.40625 | 1,703 | Knowledge Article | Science & Tech. | 28.576596 |
Borrowing heavily from the psychologists definition of the analogy and the software designers interface/class,...the structure for the analogy can be represented as here.
An analogy is the mapping of similar attributes, operations and rules between two or more varieties. Each variety specifies a value for attributes as... | <urn:uuid:c9f68fb5-4a33-4214-b993-6bc5ffc961b1> | 3.21875 | 140 | Documentation | Software Dev. | 30.105 |
What is ENERGY MEASURED IN?
Energy is measured in Joules in the SI system. Thermal energy can be measured in calories (1 calorie = 4.2 Joules) or BTU. In traditional units, energy is in ft.lbforce ...
What is energy? Energy is the ability to do work and results in a change. It is a very commonly used word in our everyd... | <urn:uuid:d0f5727e-b1ba-4b8b-8b69-4920aa030fd5> | 3.359375 | 2,199 | Content Listing | Science & Tech. | 49.762155 |
In the course of this review of the `prototype' barred galaxy NGC 1365 we may have gained the impression that this galaxy in several respects is rather unusual. Indeed, NGC 1365 is a supergiant galaxy falling at the very upper end of the infrared Tully-Fisher relation with a very strong bar. To what extent do its speci... | <urn:uuid:d556730d-89a4-4054-96a8-62463960ec0a> | 2.734375 | 1,235 | Academic Writing | Science & Tech. | 39.976805 |
Cosmic Microwave Background
Name: Jack H.
How is it that we can "see" the cosmic microwave background radiation? It seems
to me that, no matter which way its photons were heading when they started on their way in the
year 380,000, they must surely have left the matter of the universe behind by now. They
travel at the s... | <urn:uuid:e2d71429-9457-4b0d-b6e2-5dd343b8f186> | 2.828125 | 384 | Nonfiction Writing | Science & Tech. | 60.564909 |
Sand could shed light on quark-gluon plasma
Nov 13, 2007
What do sand and quarks have in common? The answer, according to physicists in the US, is that they both behave like liquids under certain circumstances. When Sidney Nagel and colleagues at University of Chicago fired jets of sand-like granular materials at solid... | <urn:uuid:f5e79c89-c407-4ab2-893c-89943956a10a> | 3.59375 | 878 | Truncated | Science & Tech. | 42.160874 |
We are now at a turning point for fossil fuels, and decisions will need to be made about the best policies from here forward. The environmental goods, commodities, and services of economic systems can be evaluated in terms of real wealth, and these evaluations can be used to make decisions towards best policies in reso... | <urn:uuid:1dd7b8e4-9167-4e7f-bde2-71f2e32d57cb> | 2.734375 | 1,017 | Personal Blog | Science & Tech. | 41.672673 |
NASA eClips: Methane: An Indicator for Life on Mars?
In this pair of eClips videos, students will learn how scientists are using spectroscopy to identify methane plumes on Mars. They will also explore some of the biological and geological processes that form methane on Earth and the implications for astrobiologists who... | <urn:uuid:4a2766fd-d415-49c2-9667-c94ba7a71fd5> | 3.984375 | 442 | Tutorial | Science & Tech. | 26.018793 |
int get_line(): This private member function reads in a line of text from the standard input and stores it in the buffer of the Parser object. The line_num data member is incremented accordingly. If the parser already had a line cached as the result of a prior call to unget_line(), then no line is read in from standard... | <urn:uuid:4123e6aa-fac5-4339-b9ae-86fe95b72fc8> | 3.375 | 652 | Documentation | Software Dev. | 46.915544 |
Growing Atlantic dead zone shrinks habitat for billfish and tuna, may lead to over-harvest
A dead zone off the coast of West Africa is reducing the amount of available habitat for Atlantic tuna and billfish species, reports the National Oceanic and Atmospheric Administration in a study published in Fisheries Oceanograp... | <urn:uuid:46bbbecd-a394-40ae-b9c9-1abe9e052595> | 3.484375 | 403 | Truncated | Science & Tech. | 41.780739 |
Origin Of Universe
Origin of the
Universe - What's the Latest Theory?
When it comes to the origin of the universe, the "Big
Bang Theory" and its related Inflation Universe Theories (IUTs) are
today's dominant scientific conjectures. According to these interrelated
notions, the universe was created between 13 and 20 bil... | <urn:uuid:7adea17b-f8d6-4b5f-8204-96b06e493e03> | 3.484375 | 209 | Knowledge Article | Science & Tech. | 22.2079 |
PLAYING sound waves backwards could help the US Navy set up secure communication links with submarines or unmanned submersibles. The system works by broadcasting messages in such a way that they can only be received at one point in the water-so no one else can intercept them.
Underwater communications are very primitiv... | <urn:uuid:ee15fc1f-8259-44d3-b75a-234500df0127> | 3.859375 | 216 | Truncated | Science & Tech. | 38.650638 |
What would your favorite science-fiction movie be without the costumes? Most likely it would not be your favorite movie.
Fashion and costume choices set the stage for some of cinema’s most memorable moments. But what are movie sets made out of? Where was the cotton used to make the leading lady’s pants harvested? These... | <urn:uuid:5926ce2c-90e0-4bb0-8460-4f6b15ea6111> | 3 | 1,014 | Audio Transcript | Science & Tech. | 42.481034 |
The Science Guys
Science Guys > February 2001
Why is water clear but when it freezes it is often white, as in snow?
The transparency of water is amazing: the water of an unspoiled reef or Oregon’s Crater Lake is renown for its clarity, for one can peer about 100 feet through it. Yet everyone knows that even a minor sno... | <urn:uuid:7620fae5-7ad3-4eca-ae96-129b642cca57> | 3.25 | 762 | Knowledge Article | Science & Tech. | 59.332114 |
Epiactis prolifera Verrill, 1869
Common name(s): Brooding anemone, proliferating anemone, small green anemone
Subclass Zoantharia (Hexacorallia)
|Epiactis prolifera in an aquarium|
|(Photo by: Dave Cowles, 2004)|
How to Distinguish from Similar Species: Epiactis ritteri has broad radiating white lines on the oral disk ... | <urn:uuid:01ce2926-eb1c-4a02-8ac8-38ecbc804490> | 2.875 | 849 | Knowledge Article | Science & Tech. | 46.175528 |
Carbon dioxide (CO2) is the most well-known ‘greenhouse gas’, a byproduct of burning fossil fuels such as gasoline, methane and propane. The greater the number of these heat trapping molecules that exist, the more the Earth’s temperatures will continue to rise.
Trees naturally eat carbon dioxide, but on a per tree basi... | <urn:uuid:e9f74312-256f-4f34-8a9c-5e092d0dbb82> | 3.65625 | 642 | Personal Blog | Science & Tech. | 49.424832 |
The information on EOL is organized using hierarchical classifications of taxa (groups of organisms) from a number of different classification providers. You can explore these hierarchies in the Names tab of EOL taxon pages. Many visitors would expect to see a single classification of life on EOL. However, we are still... | <urn:uuid:b3c0c9c1-e9f9-4e33-b447-4d99df6f7e81> | 3.0625 | 1,413 | Content Listing | Science & Tech. | 21.282321 |
Optional Argument. DIM
Description. Sort by ascending value.
Class. Transformational function.
ARRAY must be of type integer, real, or character. It must not be scalar.
DIM (optional) must be scalar and of type integer
with a value in
the range 1 < DIM < n,
where n is the rank of ARRAY.
The corresponding actual argumen... | <urn:uuid:16e69c94-08ce-46f6-ba2a-e56e0b7305cd> | 2.84375 | 607 | Documentation | Software Dev. | 71.297197 |
It’s summer. It’s hot. And once again, we are hearing from the usual suspects that we must change our entire way of living. Repent, they say. Carbon dioxide emissions are killing Mother Earth. Give up hydrocarbons and embrace renewable energy.
Doing so, we’re assured, will result in a gentler climate and myriad other b... | <urn:uuid:e69e6503-c204-445d-b900-323dcc448279> | 2.953125 | 543 | Nonfiction Writing | Science & Tech. | 43.958726 |
A student holding a book between his hands. The forces that he exerts on the front and back covers of the book are perpendicular to the book and are horizontal. The book weights 31 N . The coefficient of the static friction between his hands and the book is .40. To keep the book from falling, what is the magnitude of t... | <urn:uuid:82cbcd6a-7925-4d0f-82e5-b32dcba908bb> | 3.15625 | 129 | Q&A Forum | Science & Tech. | 88.954866 |
The first part of an investigation into how to represent numbers
using geometric transformations that ultimately leads us to
discover numbers not on the number line.
Introduces the idea of a twizzle to represent number and asks how
one can use this representation to add and subtract geometrically.
How can you use twizz... | <urn:uuid:052f9086-4117-433c-8642-aa03fab2bc0e> | 3.46875 | 73 | Knowledge Article | Science & Tech. | 31.707895 |
Jan 22, 2013, 1:57 PM
Post #31 of 31
Perl documentation on Regex modifiers:
Re: [Stefanik] Match characters in middle and end string
[In reply to]
- m :
Treat string as multiple lines. That is, change "^" and "$" from matching the start or end of the string to matching the start or end of any line anywhere within the s... | <urn:uuid:4fd960ff-2fe5-4e4d-9c5e-244b292728c8> | 2.828125 | 169 | Comment Section | Software Dev. | 68.398807 |
Complex Numbers and Polar Coordinates
Forgot to hit “publish” earlier…
So we’ve seen that the unit complex numbers can be written in the form where denotes the (signed) angle between the point on the circle and . We’ve also seen that this view behaves particularly nicely with respect to multiplication: multiplying two ... | <urn:uuid:856e09ca-5d99-49fa-9e0b-72ef941c9d40> | 3.90625 | 399 | Personal Blog | Science & Tech. | 41.953599 |
The Cross Product and Pseudovectors
Finally we can get to something that is presented to students in multivariable calculus and physics classes as if it were a basic operation: the cross product of three-dimensional vectors. This only works out because the Hodge star defines an isomorphism from to when . We define
All ... | <urn:uuid:b0f9306d-76ed-459a-84b9-9cacc9dc6608> | 3.921875 | 984 | Personal Blog | Science & Tech. | 46.129465 |
Science Fair Project Encyclopedia
Bees (Apoidea superfamily) are flying insects, closely related to wasps and ants. They are adapted for feeding on nectar, and play an important role in pollinating flowering plants, and are called pollinators. Bees have a long proboscis that they use in order to obtain the nectar from ... | <urn:uuid:80700455-6905-48c5-a318-0d7895087036> | 4.15625 | 1,861 | Knowledge Article | Science & Tech. | 46.633898 |
Shallow Water Equations
Model ID: 202
The Shallow Water equations are frequently used for modeling both oceanographic and atmospheric fluid flow. Models of such systems lead to the prediction of areas eventually affected by pollution, coast erosion and polar ice-cap melting.
Comprehensive modeling of such phenomena usi... | <urn:uuid:22b1778e-9a4e-4b4e-af10-f11362aec365> | 3.109375 | 149 | Knowledge Article | Science & Tech. | 26.954263 |
tatistics and reports analyze the change over time of any kind of phenomena. For example, you could evaluate an employer's performance by analyzing progress curves provided by reports; managers can make business decisions based on statistical sales data; meteorologists can predict natural disasters based on statistical... | <urn:uuid:1e5c70d1-36a0-4062-85e1-2db9cc1b510c> | 3 | 1,102 | Documentation | Software Dev. | 52.854229 |
Wetland MonitoringIn 2005, the Iowa Department of Natural Resources’ (IDNR) Watershed Monitoring and Assessment Section began its wetland monitoring program in north-central Iowa, through grant funds provided by the U.S. Environmental Protection Agency. Wetlands provide many benefits for both water quality and wildlife... | <urn:uuid:4050b5fb-d76e-4ca8-b373-b3c2b74995d3> | 3.484375 | 191 | Knowledge Article | Science & Tech. | 28.885328 |
Vacuum Container and Buoyancy
Hello, Maybe this is a stupid question, but I have never
received a satisfying answer, so I will try my luck here, worst case
scenario is being called stupid, so why not. My question is: Is it
theoretical possible to create a container that can handle the pressure of a
high 'enough' level ... | <urn:uuid:1bdce2e1-3dbf-4aaf-9673-10cbd315063b> | 2.96875 | 1,236 | Q&A Forum | Science & Tech. | 54.912111 |
: What is WCF?
: Windows Communication Foundation (formerly code-named "Indigo") is a
: set of .NET technologies for building and running connected systems.
: It is a new breed of communications infrastructure built around the
: Web services architecture.
: in technical terms
: Windows Communication Foundation is Micro... | <urn:uuid:50117a90-9198-4bdf-8b84-016210b31010> | 3.265625 | 748 | Documentation | Software Dev. | 44.341201 |
Science / Chemistry Glossary
Ammonia: Pure NH3 is a colorless gas with a sharp, characteristic odor. It is easily liquified by pressure, and is very soluble in water. Ammonia acts as a weak base. Aqueous solutions of ammonia are . . . View Full Definition
Ammonium Ion: (NH4+) ammonium NH4+ is a cation formed by neutral... | <urn:uuid:2ea47dea-4259-473f-80a2-3267027ff8d5> | 3.75 | 934 | Structured Data | Science & Tech. | 34.283846 |
Data reported by the weather station: 988360 (RPMZ)
Latitude: 6.9 | Longitude: 122.06 | Altitude: 5
|Main||Year 1960 climate||Select a month|
To calculate annual averages, we analyzed data of 363 days (99.18% of year).
If in the average or annual total of some data is missing information of 10 or more days, this is not... | <urn:uuid:1a241d50-b235-40ab-8066-5e3fff4a0263> | 2.75 | 354 | Structured Data | Science & Tech. | 70.510476 |
A parameter is a variable in an SQL statement. For example, suppose a Parts table has columns named PartID, Description, and Price. To add a part without parameters would require constructing an SQL statement such as:
INSERT INTO Parts (PartID, Description, Price) VALUES (2100, 'Drive shaft', 50.00)
Although this state... | <urn:uuid:9c3d0ab7-cd78-4717-a2b8-32a36b1b7344> | 2.921875 | 678 | Documentation | Software Dev. | 40.288308 |
© 1997, Astronomical Society of the Pacific, 390 Ashton Avenue, San Francisco, CA 94112.
It would be the ultimate backpacking trip: an exploration of Saturn's rings. The astronauts squeeze into their space suits, strap on their rocket-powered backpacks, and load their cameras. Their spaceship brings them within a few k... | <urn:uuid:edb080b3-78a8-4dd6-bd12-e8462606f0c6> | 2.96875 | 1,147 | Knowledge Article | Science & Tech. | 52.909215 |
Comprehensive DescriptionRead full entry
Biology/Natural History: Rhizocephalan barnacles such as this species are bizarrely distorted parasitic barnacles. It was not even known that they were barnacles until the cypris larva in their life cycle was discovered. The eggs of Rhizocephalans usually hatch as a nauplius lar... | <urn:uuid:080930ac-c1b9-47d2-ac0f-b2bb22aab7cd> | 3.453125 | 399 | Knowledge Article | Science & Tech. | 36.024496 |
The FORALL statement and construct is a generalization of the Fortran 95/90 masked array assignment (WHERE statement and construct). It allows more general array shapes to be assigned, especially in construct form.
FORALL is a feature of Fortran 95. It takes the following form:
The FORALL construct takes the following ... | <urn:uuid:803216b5-539c-48fa-881c-3bbac48e30ca> | 3.046875 | 1,020 | Documentation | Software Dev. | 60.309446 |
By: Ally McEntire
The calls of the baby gator in the Holliday lab got me thinking about alligator vocalizations. On a whim, I decided to look this up and found a little more than I had bargained for. Alligators and other crocodilians have a different vocal structure than any other reptile, amphibian or bird– all nearby... | <urn:uuid:9d240c03-c1ad-4958-a672-a8d9ce5b36d1> | 3.140625 | 360 | Personal Blog | Science & Tech. | 40.6 |
Long imagined to be virtual dead zones, perhaps since humans first trekked to the Arctic and Antarctic a century ago, the polar regions are actually living laboratories where scientists can study the mechanisms of evolution and adaptation to some of the harshest conditions on Earth. At the extreme ends of the planet, l... | <urn:uuid:725ad3c8-2ee5-4f73-8334-38d84a1e3ba7> | 3.75 | 798 | Knowledge Article | Science & Tech. | 29.112867 |
In this mad rush towards the use of so called renewable power to replace existing coal fired power generation, many wild claims are being made. Because of that, those members of the public who have little knowledge of exactly how power is generated can be lured into believing that some of these methods actually can be ... | <urn:uuid:a952a065-beb7-40cc-a121-e2bff8af9644> | 3.296875 | 2,360 | Personal Blog | Science & Tech. | 40.941512 |
The Cat's Eye Nebula
(NGC 6543) is one of the best known planetary
nebulae in the sky.
Its haunting symmetries are seen
in the very central region of
this tantalizing image, processed to reveal the
enormous but extremely faint halo of gaseous material,
about 6 light-years across, which surrounds the brighter,
familiar ... | <urn:uuid:1ed6f639-3291-4132-9adf-189722133911> | 3.296875 | 229 | Knowledge Article | Science & Tech. | 37.197924 |
Figure 4: The effect of varying threshold on the binarization of a protein-aggregate image. Red pixels are particles, based
on the threshold. The green boxes show enclosed particles found after thresholding. Image 1 is the original protein aggregate
image. Image 2 shows the result of a threshold of 25 darker than backg... | <urn:uuid:e2ca0339-ea9f-4b4c-928a-9e60d49af2f1> | 2.859375 | 591 | Academic Writing | Science & Tech. | 35.27 |
Carbon is the sixth most abundant element in the universe and is unique due to its dominant role in the chemistry of life and in the human economy. It is a nonmetallic element having the symbol C, the atomic number 6, an atomic weight of 12.01115, and a melting point about 360ºC. There are four known allotropes of carb... | <urn:uuid:dd31ec20-ebde-4215-9b57-c1a8a7f622af> | 3.28125 | 2,874 | Knowledge Article | Science & Tech. | 50.921706 |
Most sharks have an unusual combination of biological characteristics: slow growth and delayed maturation; long reproductive cycles; low fecundity; and long life spans. These factors determine the low reproductive potential of many shark species.
Slow growth and delayed maturation: Some species of sharks, including som... | <urn:uuid:160bb057-12b5-4f1d-9fc1-8ace1e035d62> | 4.03125 | 1,122 | Academic Writing | Science & Tech. | 32.585106 |
Sea Creatures’ Response to Ocean Acidification Shocks Scientists
Have you ever heard those tales of how dumping toxic waste into water will cause the aquatic life to mutate into something out of science fiction? Well, apparently marine life as of late are going through some shocking changes, and while it may not be lik... | <urn:uuid:3e335817-f7a1-49d8-bfdd-f5ab0285a141> | 3 | 633 | Truncated | Science & Tech. | 44.054175 |
Photographic Benthic Observing System (PhoBOS)
Capturing video of the deep seafloor 24/7
|This photo shows the PhoBOS video system on top of the MARS science node in Monterey Bay. Image: (c) 2010 MBARI
The Photographic Benthic Observing System (PhoBOS) is an integrated suite of instruments that have been place at the M... | <urn:uuid:a5e6a386-efeb-467a-9898-b1d666fcdffe> | 3.078125 | 289 | Knowledge Article | Science & Tech. | 37.498444 |
Buddenbrockia plumatellae is a tiny parasitic worm of freshwater bryozoans (moss animals). First described in 1910 by the German natural historian, Olaw Schröder, it has been encountered by only a few scientists since.
Infection with Buddenbrockia reduces growth and reproduction and may cause mortality of bryozoan host... | <urn:uuid:bb1cf1a0-55e3-4828-8551-82c14b8eee6c> | 3.453125 | 442 | Knowledge Article | Science & Tech. | 30.810668 |
Conifer vs. Angiosperm
An idea long prevailed that angiosperm trees, having superior reproductive capability compared to conifers, displaced them to extreme habitats considered unfavorable to angiosperms. A study of extant conifers supports the notion that in productive regions of the tropics, leaf structure (needles i... | <urn:uuid:e095415e-03fd-4bd5-be3c-2d1058bb1063> | 3.890625 | 785 | Content Listing | Science & Tech. | 26.079029 |
By Lawrence Ulrich
Posted 08.30.2011 at 1:22 am 0 Comments
In the wake of the 1973 oil embargo, Detroit automakers tried to convince regular, non-truck-driving Americans to switch to diesel. Diesel engines, after all, burn fuel 30 percent more efficiently than gasoline engines. The carmakers failed, in part because of ... | <urn:uuid:e42fb7b5-5202-42ea-a6d3-5914995bdbee> | 2.84375 | 928 | Content Listing | Science & Tech. | 56.233735 |
Note: This month's "Scientist's Pick" is from Science Buddies' staff scientist, Sandra Slutz. ~ Science Buddies' Editorial Staff
Project: Forensic Science: Building Your Own Tool for Identifying DNA
Scientist: Sandra Slutz
Science Buddies' Difficulty Level: 7-9
Sometimes, when I'm supposed to be sitting down and concen... | <urn:uuid:3fcb221f-706e-49a4-aa99-95e739f06550> | 3.484375 | 747 | Personal Blog | Science & Tech. | 50.930427 |
Sep 29, 2009 | 8
The 60-Second Science series was created with the intention of providing our audience with bite-size, consume-in-one-minute pieces of scientific coverage. This format has proved ideal for our podcasts, but we've missed the option to write longer news and opinion pieces for the blog. We also wanted a wa... | <urn:uuid:ad3dc4c3-290a-471e-873b-6eb51ac4b5ae> | 3.015625 | 2,279 | Content Listing | Science & Tech. | 45.881304 |
This is an image of Io.
Click on image for full size
The Jet Propulsion Laboratory
There are no clouds and lightning. The atmosphere of Io is very thin and does not remain gravitationally bound to Io for very long. Even so, it has an important impact on the Jupiter system.
Io's atmosphere comes from its volcanoes, then... | <urn:uuid:fa7515ee-efcf-4e30-b069-d2bbd7c00dd2> | 3.953125 | 569 | Content Listing | Science & Tech. | 54.927244 |
EUNIS is the European Nature Information System. It contains information on selected species, habitats and sites of importance for protecting Europe's biodiversity. The main content concerns the European Community Birds and Habitats directives as well as the Bern Convention. EUNIS has been developed for the European En... | <urn:uuid:f96adf84-915a-467f-98d5-046b7cd7d155> | 3.046875 | 255 | Knowledge Article | Science & Tech. | 40.075279 |
In 2005, corals in the large reef off the coast of Florida were saved by four hurricanes. Tropical storms seem to be unlikely heroes for any living thing. Indeed, coral reefs directly in the way of a hurricane, or even up to 90km from its centre, suffer serious physical damage. But Derek Manzello from the National Ocea... | <urn:uuid:3c01697e-0b72-4c6e-a65b-9b8166122790> | 4.125 | 274 | Personal Blog | Science & Tech. | 44.431667 |
Which planets have rings?
Officially, how many of the planets of our solar system have rings and what are they? Thanks in advance for your assistance.
All of the giant planets in our solar system have rings: Jupiter, Saturn, Uranus, and Neptune. Jupiter's ring is thin and dark, and cannot be seen from Earth. Saturn's r... | <urn:uuid:b15eb542-8437-4501-b842-e12b85b1165d> | 3.59375 | 300 | Q&A Forum | Science & Tech. | 65.615824 |
| || |
| The Sixth Mass Extinction |
Should we consider, as some environmental scientists have, that the current biodiversity crisis is the start of a sixth mass extinction? Regardless of how one answers that question, it is clear that we are losing species at rates that, while exceedingly difficult to calculate, are a... | <urn:uuid:348fc7e7-e206-4574-becd-bdb931ddc1a8> | 4.15625 | 1,042 | Knowledge Article | Science & Tech. | 48.601139 |
rint - round to closest integer
#include <math.h> double rint(double x);
The rint() function rounds x to an integer value according to the prevalent rounding mode. The default rounding mode is to round to the nearest integer.
The rint() function returns the integer value as a floating-point number. | <urn:uuid:76eea17e-6b43-41c0-9d32-0531c60109e5> | 2.734375 | 69 | Documentation | Software Dev. | 63.8635 |
Triangle grid paper (to print out)
- Ask Dr. Math: Archive - Search for Pascal
- Practical Uses for Pascal's Triangle
- One Person of Seven Born on Monday
- Pascal's Triangle and the Ice Cream Cones
- Binomial Expansions and Pascal's Triangle
- Binomial Theorem
- Proof by Induction
- Or search the Dr. Math archives for... | <urn:uuid:5dc420fc-b15e-4c32-91e0-ee9a3fc7ac24> | 3.046875 | 2,539 | Content Listing | Science & Tech. | 53.581288 |
Sea Hare Aplysia punctata
The sea hare, a type of sea slug, has tentacles reminiscent of a hare’s ears. It has an internal shell about 1 in (4 cm) long that is visible only through a dorsal opening in the mantle. If disturbed, it releases purple or white ink. It is not known if this response is a defense mechanism.
- C... | <urn:uuid:24f79009-08bf-4a97-b278-08e41985287d> | 2.875 | 113 | Knowledge Article | Science & Tech. | 54.68125 |
Major samplers being prepared for placement on the vehicle. The one shown in this image is called a "double pair" because it has two sampling chambers. The robotic claws of the vehicle grab onto the T-shaped handle for placement of the nozzle into the vent orifice. Click image for larger view and image credit. (HR)
Sen... | <urn:uuid:16840c66-1fcf-45fb-afdf-8a4da89579f7> | 3.640625 | 1,808 | Knowledge Article | Science & Tech. | 40.356226 |
The Hydrological Cycle
We read in Oceans
and Climate that:
- Sunlight reaching earth's surface is absorbed mostly in the tropics,
mostly in the tropical ocean.
- The absorbed sunlight warms the ocean, which cools mainly by evaporation
from the surface (think of it as the ocean sweating to keep cool).
Water evaporated f... | <urn:uuid:27e3678b-1c6e-4387-9a22-8b030f5dd9d1> | 4.09375 | 2,281 | Knowledge Article | Science & Tech. | 53.047599 |
Demons in the History of Science
Part one of two: Laplace’s Demon
Some might say that the modern day physicists have it easy; they can appeal to the public with their stories of eleven-dimensional universes, time travel, and stories of a quantum world that is stranger than fiction. But the basis of such appeal remains ... | <urn:uuid:eb507624-cb7e-4304-a8ad-c575ddaa2888> | 3.203125 | 737 | Personal Blog | Science & Tech. | 22.659054 |
Peer Reviewed: Droughts have not increased since the 1950s
According to a commonly used model of drought patterns, researchers had previously assumed that higher global temperatures were causing greater evaporation of water, and therefore more droughts.
But a more detailed analysis of weather data, including wind speed... | <urn:uuid:60b60d5b-9da3-4c57-bd67-870edbde14fa> | 3.21875 | 633 | Comment Section | Science & Tech. | 33.639074 |
Color-Color Analysis of GLIMPSE Point Sources
Daniel Capellupo, University of Rochester
For my project, I made use of new data from the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE), which uses the Spitzer space telescope. GLIMPSE covers the longitude range |l| = 10-65 and latitude b = -1 to 1 in f... | <urn:uuid:0d7c7819-2992-4b8d-bed6-ad3b32e6ee1a> | 3.03125 | 592 | Personal Blog | Science & Tech. | 66.517324 |
The Oldest Trees on the Planet
Trees are some of the longest-lived organisms on the planet. At least 50 trees have been around for more than a millenium, but there may be countless other ancient trees that havenít been discovered yet.
Trees can live such a long time for several reasons. One secret to their longevity is... | <urn:uuid:379d290f-1dcc-45ab-8c0b-df6e921b1719> | 3.484375 | 396 | Comment Section | Science & Tech. | 61.379004 |
Find mudminnows and pikes information at Animal Diversity Web
The mudminnows and pike group is a small group of freshwater fish, including 5 species of mudminnows and 5 species of pikes. This group is found only in the northern parts of the Northern Hemisphere, including northern North America and Eurasia. Pikes are lo... | <urn:uuid:4554b3c8-3061-4388-95f6-9126de8350d1> | 2.765625 | 153 | Knowledge Article | Science & Tech. | 47.18408 |
autoconf.info: Using System Type
Go backward to Canonicalizing
Go up to Manual Configuration
Go to the top op autoconf
Using the System Type
How do you use a canonical system type? Usually, you use it in one or
more `case' statements in `configure.ac' to select system-specific C
files. Then, using `AC_CONFIG_LINKS', li... | <urn:uuid:de2cf026-2ccd-409e-a2c5-d24075a4e1bc> | 3.09375 | 458 | Documentation | Software Dev. | 52.64432 |
Data reported by the weather station: 918300 (NCAI)
Latitude: -18.83 | Longitude: -159.76 | Altitude: 4
|Main||Year 1993 climate||Select a month|
To calculate annual averages, we analyzed data of 365 days (100% of year).
If in the average or annual total of some data is missing information of 10 or more days, this is n... | <urn:uuid:61eaf593-cd35-473f-99f8-fae9ab85e175> | 2.75 | 360 | Structured Data | Science & Tech. | 72.456166 |
Writing an Event Handler for the Button
Go Up to Getting started with IntraWeb Index
The form does not yet perform any actions when the user clicks the OK button.
For information on editing the main form, see Editing the Main Form.
You will now write an event handler that will display a greeting when the user clicks OK... | <urn:uuid:0571336f-7fb5-4b44-94b1-30b1025aa7db> | 2.6875 | 236 | Documentation | Software Dev. | 50.984089 |
Science says: The warming trend is the same in rural and urban areas, measured by thermometers and satellites.
Surveys of weather stations in the USA have indicated that some of them are not sited as well as they could be. This calls into question the quality of their readings.
However, when processing their data, the ... | <urn:uuid:adc9d4c0-6330-465a-af5e-d8a9806e6e29> | 3.375 | 2,783 | Knowledge Article | Science & Tech. | 36.130345 |