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Nisquallia olympica females range in color from dark slate gray through lighter gray, mottled brown, olive and rust. Some of the color variation may be related to how recently they’ve molted.
Image 6 shows the ventral side of a female, shot through the wall of a plastic terrarium.
“Two New Melanoploid Genera (Orthopter... | <urn:uuid:b2ebbbfa-4a02-42f6-adf4-e7f3ef59a798> | 2.828125 | 203 | Knowledge Article | Science & Tech. | 62.022632 |
Global warming is the increase in the average temperature of Earth's near-surface air and oceans since the mid-20th century and its projected continuation. Global surface temperature increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) between the start and the end of the 20th century. The Intergovernmental Panel on Climate Chang... | <urn:uuid:fe3f896d-e628-45d8-b52f-e6794eaeba07> | 3.890625 | 477 | Knowledge Article | Science & Tech. | 32.418825 |
-Nature of Things
Mysteries of Sight, Sound and Other Senses
From birds using celestial navigation, to salmon using chemical sensors to "smell" their way home, John Weeks discusses the migration phenomenon of various species. Weeks notes that many migration patterns hold mysteries that are still unexplained.
Originally... | <urn:uuid:c5694694-98fc-4f05-a66e-c062bfae9637> | 3.0625 | 68 | Truncated | Science & Tech. | 25.887308 |
Sharp telescopic views of magnificent edge-on spiral
galaxy NGC 3628
show a puffy
galactic disk divided by dark dust lanes.
The tantalizing scene puts many astronomers
in mind of its popular moniker,
The Hamburger Galaxy.
About 100,000 light-years across and 35 million light-years away
in the constellation Leo, NGC 362... | <urn:uuid:830d2ba0-308c-4078-91bd-9db9d7466a1f> | 3.359375 | 182 | Knowledge Article | Science & Tech. | 38.811466 |
The Climate statistics for Australian locations consists of information for more than 1000 sites. The tables prepared for each site provide averages and other statistics for a number of elements including:
Further information about each of these statistics can be found by clicking on the first column of each row in the... | <urn:uuid:7327f2bb-65a3-4e27-887a-e96f099fe4a3> | 2.84375 | 1,671 | Knowledge Article | Science & Tech. | 37.499858 |
common chemical sense
Simply begin typing or use the editing tools above to add to this article.
Once you are finished and click submit, your modifications will be sent to our editors for review.
reaction to foreign substances
Many microorganisms are known to remain in favourable chemical environments and to disperse a... | <urn:uuid:fbcc029f-4b85-4c4f-88a9-115459b833c9> | 3.46875 | 160 | Knowledge Article | Science & Tech. | 31.597273 |
We’ve raved about solar cells previously: here, and here, the technology has taken several quantum leaps over the past decade. Paintable crystalline and printable solar cells seem to be the way of the future, the fight now is for real solar efficiency. Solar panels that can be simply printed have inched a step closer w... | <urn:uuid:0fba80e6-8bef-4f4e-99b9-4210948ff986> | 3.1875 | 205 | Truncated | Science & Tech. | 27.713548 |
When creating a new VB project, Visual Studio will automatically put Option Strict Off.
What is Option Strict and why should it be on?
Having Option Strict
] set to Off is VERY dangerous because it allows you to implicitly convert types to other types. Take for example the following code:
Dim numeric As Integer = "1"
D... | <urn:uuid:a99264b4-6bea-437d-aa9c-cf0cbe29685b> | 2.796875 | 1,441 | Personal Blog | Software Dev. | 59.150319 |
Issue Date: Nov 30, 1992
The cold war between the superpowers not only left the entire world cold in fear, but perhaps also cooled the Earth, say Russian researchers K Y Kondratyev and G A Nikolsky. Their theory is that the atmospheric nuclear tests of the early 1960s released into the stratosphere vast amounts of nitr... | <urn:uuid:050e1b0f-8fec-41e0-82d0-886ac20deeb3> | 3.171875 | 157 | Content Listing | Science & Tech. | 26.869809 |
In the grand scheme of things it doesn't matter a whole lot, but I think this is fascinating.
TOKYO, Japan (AP) -- Japanese scientists have photographed for the first time in the wild a live giant squid, one of the most mysterious creatures of the deep sea.
The team, led by Tsunemi Kubodera from the National Science Mu... | <urn:uuid:acf6ed86-8c86-451f-9901-db4dd94a6dd0> | 2.765625 | 433 | Comment Section | Science & Tech. | 43.783462 |
Note: Background information originally by Tim Goeke
ODBC (Open Database Connectivity) is an abstract API which allows you to write applications which can interoperate with various RDBMS servers. ODBC provides a product-neutral interface between frontend applications and database servers, allowing a user or developer t... | <urn:uuid:c72d60ac-754f-4fee-aba7-ea9cf22f8666> | 3.0625 | 243 | Documentation | Software Dev. | 40.537727 |
There has been an overwhelming popular demand for us to weigh in on recent reports in the Times Britain faces big chill as ocean current slows and CNN Changes in Gulf Stream could chill Europe (note the interesting shift in geographical perspective!).
At the heart of the story was a statement at the recent EGU meeting ... | <urn:uuid:fc7347fd-75bf-473d-b4bc-018f65de652d> | 3.375 | 1,092 | Nonfiction Writing | Science & Tech. | 36.475355 |
Kemp's Ridley Sea Turtle
Scenes from the video:
Why is the Kemp's Ridley endangered? How old can it live? Why does it like to lay eggs when it's windy? Brenda Justice talks with TPWD biologist Robert Adami who tells us this and more!
Windows Media | Real Media
Kemp's Ridley sea turtle, found in coastal waters and bays ... | <urn:uuid:a1bc67c9-11cd-4d57-bc3c-4a2615d93619> | 3.171875 | 256 | Audio Transcript | Science & Tech. | 68.262402 |
Ensure that you have fonts that can represent all characters in ISO 8859-15 and Windows cp1252.
C1 code points in ISO 8859-15
Test passes if
A. The symbols describe the lines to their right.
B. The document encoding indicated by the browser chrome (if available), says ISO 8859-15.
Assertion: When an ISO 8859-15 encoded... | <urn:uuid:f2d68e3d-c297-49df-82fe-8d1f636ca758> | 2.78125 | 287 | Documentation | Software Dev. | 65.560918 |
These two pictures show the speed of the solar wind. The speed of the solar wind was measured by the Ulysses spacecraft. The red and blue arrows show how fast the solar wind was "blowing". Longer arrows show higher speeds. The picture on the left shows the Sun at "solar min" when there are few sunspots. The picture on ... | <urn:uuid:2ab86bf2-ffbc-4eb8-8c5c-013fdca5339a> | 3.84375 | 188 | Knowledge Article | Science & Tech. | 76.2715 |
This is an interesting question, particularly considered in the context that Cairns-Smith (1985) even suggested that clays (silicates in solution) may have had some sort of early selection acting on them due to their surface chemistries.
However, there are a number of major problems with Silicon. Some are chemical and ... | <urn:uuid:13d249cf-347a-4497-aae2-d1727d14234b> | 3.546875 | 452 | Q&A Forum | Science & Tech. | 48.407308 |
Read/Search this Article
Temperate species of the Drosophila melanogaster species group enter reproductive diapause for overwintering in response to short daylength. During the prediapause period, they accumulate triacylglycerols (TAGs) as energy resources for winter. Under laboratory conditions, the capacity for stori... | <urn:uuid:cf20209d-f468-4afd-8d55-0a9b88873e8d> | 2.921875 | 551 | Academic Writing | Science & Tech. | 28.610164 |
The Bowen Ratio Surface Flux Observations (KSU) Data Set contains surface flux measurements made at selected sites within the FIFE area. The sites were equipped with Bowen ratio equipment that was operated by several different groups. Each surface flux station was capable of measuring the fluxes of net radiation, laten... | <urn:uuid:e77aad46-53a7-4035-a1df-4ab556554b28> | 3.34375 | 227 | Structured Data | Science & Tech. | 37.361071 |
This data set decribes surface and volume properties of snow and ice to validate radar satellite measurements. Ground penetrating radar (GPR) at 500 and 1000GHz provides information on snow layers and thickness near the surface at two sites on the McMurdo Ice Shelf, one site at Ross Island, and on the landfast and new ... | <urn:uuid:c2423c59-d798-449c-b0f4-c86beff79cc8> | 3.59375 | 546 | Academic Writing | Science & Tech. | 43.586003 |
An instance of
Category (~>) declares the arrow
(~>) as a category.
The category with Haskell types as objects and Haskell functions as arrows.
The category with categories as objects and adjunctions as arrows.
The category of all monoids, with monoid morphisms as arrows.
|Category ~> => Category (Op ~>)|
|Category (Di... | <urn:uuid:09c03a43-49db-42fb-af96-9800a1e1f6ce> | 2.921875 | 292 | Documentation | Software Dev. | 36.161312 |
NASA is now taking the exploration at Mars to a whole new level via tha Mars Rover named curiosity that apparently weighs a full ton and is a giant, scientifically armed, robot. The prime purpose of the the robotic beast will obvioulsy be to detect new life, or possibilites of having life at the red planet. Also, it wi... | <urn:uuid:f7896e53-13c6-4a66-8724-e5df128b1355> | 3.078125 | 702 | Listicle | Science & Tech. | 52.351402 |
I think the last one is the type im looking for, could someone show me how that might work with a number like
You have been given two equivalent expressions.
, called the "floor" or "integer part" (for positive numbers) gives the largest integer larger than or equal to x.
, called the "decimal part" is .
If x= 20938340... | <urn:uuid:85dcb8a7-bd59-4fb7-a62b-f6c640908a76> | 2.84375 | 809 | Comment Section | Science & Tech. | 75.074058 |
Momentum and Kinetic Energy
Why is momentum the derivative of kinetic energy?
This relation follows from the definitions: kinetic energy, KE, is defined
as: KE = 1/2 x M x V^2 and momentum, P, is defined as: M x V where M is the
mass and V is the velocity, so: d(KE)/dV = 1/2 x d(M x V^2) and if the
mass is a constant: ... | <urn:uuid:193c6f23-f0e9-43f0-b67d-afd9bea34c5b> | 3.953125 | 306 | Knowledge Article | Science & Tech. | 70.869674 |
Back to Table of Contents
So far, we have learned that energy is a measure of the capability of an object or system to do work, and we have also learned about the basic different forms of energy.
But these concepts still don't quite do justice to the full concept of energy, for energy has a number of very special addit... | <urn:uuid:1a8c8a09-fefc-44fe-b4b2-0bf5feda3ca2> | 3.53125 | 635 | Knowledge Article | Science & Tech. | 34.266209 |
The current climate-change driven acceleration in tidewater glacier melt in Greenland is another example of why calling anything “impossible” in complex systems is usually a bad idea:
The abrupt acceleration of melting in Greenland has taken climate scientists by surprise. Tidewater glaciers, which discharge ice into t... | <urn:uuid:55b31f38-020f-4410-9fdb-6e998f227389> | 2.953125 | 188 | Truncated | Science & Tech. | 29.310824 |
There is no sensible answer to this question.
You can put any amount of charge on a blob of aluminum sitting in a vacuum, or surrounded by an ideal insulator. Why not?
If you put an awful lot of electrons on a blob of aluminum sitting in a vacuum, the electrons will eventually start shooting off by thermionic emission,... | <urn:uuid:2f034c55-44c7-49b5-9bec-df9edb189b2b> | 2.828125 | 415 | Q&A Forum | Science & Tech. | 49.031168 |
As often happens with new types of quizzes, players had lots of excellent feedback (including corrections) on how the quiz was presented.
Since we plan to offer at least another dozen quizzes of this type over the next year or so, we want to make sure that all future "unnecessary" quizzes are unambiguous and easy to un... | <urn:uuid:a3de639b-1303-4d74-a684-3d96646401cd> | 2.984375 | 536 | Comment Section | Software Dev. | 51.304396 |
I have, this year, grown some crimson-flowered nasturtiums in a pot and, needless to say, the white butterflies soon found them. Before long both large white (Pieris brassicae) and small white (Pieris rapae) caterpillars appeared, the large whites (below) being particularly obvious on the leaves and flowers.
This morni... | <urn:uuid:71fd5f71-91f8-49cf-985e-131a336ebaa2> | 3.15625 | 342 | Personal Blog | Science & Tech. | 39.228077 |
A Tall Color Polymorphism in Acris Tadpoles in Response to Differential
Previous workers have noted that cricket frog
tadpoles of the genus Acris have black tail tips.
My initial collections of Acris crepitans tadpoles from
various localities in Kansas revealed a polymorphism in tail color associated
with habitat type:... | <urn:uuid:f50f9223-0109-45b7-b158-a66f9ed43713> | 2.8125 | 340 | Academic Writing | Science & Tech. | 26.921859 |
Like all insects, ants have six legs. Each leg has three joints. The legs of the ant are very strong so they can run very quickly. If a man could run as fast for his size as an ant can, he could run as fast as a racehorse.
Most insects have three parts to their body and ants are no exception. These three parts are call... | <urn:uuid:f8e5a09f-1c23-42b1-8978-51259b7b00a1> | 3.5625 | 468 | Knowledge Article | Science & Tech. | 65.274 |
Associated article: Scripting with Java & Python
Tags: Web Development JVM Languages
Published source code accompanying the article by Boudewijn Rempt in which he shows how you can embed a standard language such as Python into a Java application. Also see PYCONSOL.ZIP.
Scripting With Java and Python by Boudewijn Rempt ... | <urn:uuid:d5ac0fdb-f404-45c0-8605-243810ed9125> | 2.71875 | 137 | Truncated | Software Dev. | 37.112703 |
Protons are found to be smaller in size
Posted 13 July 2010 - 02:45 AM
All atoms are made up of nuclei orbited by electrons. The nuclei, in turn, are made of neutrons and protons, which are themselves made of particles called quarks.
For years the accepted value for the radius of a proton has been 0.8768 femtometers, w... | <urn:uuid:5f79c845-2b3e-45e4-8ac0-55f34f4beb6e> | 3.625 | 710 | Comment Section | Science & Tech. | 66.070653 |
Have modern programming languages failed? From the point of view of learnability and maintainability, yes! What would a truly maintainable and learnable programming language look like? This is the second of a six-part series exploring the future of programming languages (read The World’s Most Maintainable Programming L... | <urn:uuid:e7e4adb5-d15a-4967-9f53-83700e1fce7d> | 2.8125 | 941 | Personal Blog | Software Dev. | 23.264171 |
26. Robert Goddard
27. Early Rocketry
29a. Looking Outwards
29b. Looking Earthwards
29c.Observing local space
29d. Useful Spaceflight
29e.Exploring far Space
30.To Space by Cannon?
32. Solar Sails
32a. Early Warning of
33. Ion Rockets
This groups includes about 200 communication satellites ("comsats") scattered in sync... | <urn:uuid:256bf5c4-50ad-4a67-b756-759fda07a7bb> | 3.359375 | 738 | Knowledge Article | Science & Tech. | 47.678121 |
where n is a nonsquare integer and x and y are integers. Trivially, x = 1 and y = 0 always solve this equation. Lagrange proved that for any natural number n that is not a perfect square there are x and y > 0 that satisfy Pell's equation. Moreover, infinitely many such solutions of this equation exist. These solutions ... | <urn:uuid:63577e4e-646b-4804-b8f2-c31d974d1a3e> | 3.828125 | 1,206 | Knowledge Article | Science & Tech. | 49.68087 |
When a solar flare erupted yesterday, scattering a billion atomic bombs’ worth of energy into space, NASA’s Solar Dynamics Observatory was staring at the sun. They recorded this video, which NASA released Friday morning.
The footage shows the flare in three different wavelengths of light. Teal and gold correspond to ul... | <urn:uuid:2b626079-f340-48de-a6b2-60e41f73f7de> | 2.890625 | 883 | Content Listing | Science & Tech. | 43.703845 |
The end of the Shuttle program does not mean the end of space exploration for the United States. NASA is continuing to go places where humans can’t yet travel by sending robotic missions.
I’m very pro-robotic missions as they’re much cheaper, practical, and easier than human-crewed spaceflight and allow us to go places... | <urn:uuid:29718e0f-4cc0-4eb7-bed1-3a026b6d8c7c> | 2.796875 | 959 | Personal Blog | Science & Tech. | 42.536859 |
Record Search Query: [Source_Name: Short_Name='TERRA']
A Tour of the Cryosphere
Entry ID: SVS_CRYOSPHERE
Abstract: The cryosphere consists of those parts of the Earth's surface where water is found in solid form, including areas of snow, sea ice, glaciers, permafrost, ice sheets, and icebergs. In these regions, surface... | <urn:uuid:92b2d0fd-3989-4fb7-b125-a11f1c53e604> | 3.59375 | 1,200 | Knowledge Article | Science & Tech. | 46.058986 |
Open source on the web
Apache runs the internet. For that matter, it’s been running the internet ever since it’s been around. Apache has been termed the killer application for the Internet. The leading HTTP server on the web, Apache Web Server currently hosts about 67% of the websites according to a survey carried out ... | <urn:uuid:7e1d231d-a751-4f94-b441-78665717ede5> | 3.15625 | 712 | Knowledge Article | Software Dev. | 46.978036 |
The Hamming distance(HD) between two strings of equal length is the number of characters that differ between the two strings at the same position, for example the HD between "gold" and "wolf" is 2; the minimum Hamming distance(MHD) between k strings of same length selected out of N strings is equal to the minimum of th... | <urn:uuid:eb7941e9-ee3d-4f76-92c8-63f05349cb5b> | 3.328125 | 291 | Q&A Forum | Science & Tech. | 105.124726 |
Copyright © University of Cambridge. All rights reserved.
Take a 25-30 cm piece of string and knot it to make a loop. (Or you could use a rubber band).
Hook the loop around three fingers and stretch it tight to make a triangle. Move your fingers around to change the triangle. Draw the triangles you make, then sort them... | <urn:uuid:ace4c3fb-a66c-4be2-b5f3-33e8910076a0> | 2.75 | 75 | Tutorial | Science & Tech. | 80.104754 |
29 April 2011
Posted in DNA Day
Dr. Walters’ research focuses on human impacts in the marine environment. She is interested in both pure ecology questions and goal-based conservation issues for a wide range of marine and estuarine habitats in the Caribbean and the southeastern US, especially the Indian River Lagoon sys... | <urn:uuid:81ec3e9a-e583-494c-9783-f9e585064306> | 2.953125 | 310 | Nonfiction Writing | Science & Tech. | 22.362283 |
Share article c# interview question :- What is difference between semaphore and semaphoreslim ?: When we use lock/monitor for concurrency management it just al ...
When we use lock/monitor for concurrency management it just allows 1 thread to pass at a time. Using semaphore and SemaphoreSlim we can allow more than 1 th... | <urn:uuid:ba60b967-4d2c-4d70-8277-125ad62944bb> | 2.703125 | 249 | Content Listing | Software Dev. | 43.136419 |
quax writes "In the wake of the Fukushima disaster the nuclear industry again faces massive opposition. Germany even decided to abandon nuclear energy altogether and the future of the industry is under a cloud of uncertainty in Japan. But one thing seems to be here to stay for a very, very long time: radioactive waste ... | <urn:uuid:7cc05a84-6d00-4162-aab0-51433851c99c> | 2.6875 | 137 | Comment Section | Science & Tech. | 33.015 |
This blog is the modern version of a field journal, a place for reports on the daily progress of scientific expeditions — adventures, misadventures, discoveries. As with the expeditions themselves, you never know what you will find.
Posts published by John Vucetich
As the emergence of snow fleas signals the end of wint... | <urn:uuid:91f39371-0aa7-469a-94bf-5ad1398d7218> | 3.265625 | 331 | Content Listing | Science & Tech. | 41.813922 |
Sci. STKE, 14 February 2006
PHOTOSYNTHESIS Red Light Signals Repair
In plant and photosynthesizing cyanobacteria, light is not only essential for photosynthesis but also damages the photosystem II (PSII) reaction centers. A repair cycle replenishes the PSII with newly synthesized subunits, and this process appears to r... | <urn:uuid:7d45ac41-417d-4125-8f35-5d0e3434dc98> | 3.078125 | 611 | Academic Writing | Science & Tech. | 42.116842 |
Nonclustered Index Structures
Nonclustered indexes have the same B-tree structure as clustered indexes, except for the following significant differences:
The data rows of the underlying table are not sorted and stored in order based on their nonclustered keys.
The leaf layer of a nonclustered index is made up of index ... | <urn:uuid:258426dc-a75c-4eb4-ac7e-31689881e537> | 3.359375 | 770 | Documentation | Software Dev. | 38.523675 |
Between 1970 and 2008 the sparrow population of England has declined by 71%. Dr. Julia Schroeder of Sheffield University has published an article in PloS ONE
of a study she undertook on the island of Lundy. her conclusions are that noise pollution is responsible for the decline. She postulates that the noise prevents t... | <urn:uuid:88789ee7-93d7-4c16-ba4d-003117118428> | 2.859375 | 219 | Personal Blog | Science & Tech. | 46.173936 |
However, what sets
our protocol apart from automated or radioactive ones is the use
of biotin. Biotin is a compound that we incorporate into the primer,
(used to elongate replicating strands of DNA), which can be detected
through a streptavidin-alkaline-phosphatase wash. The biotin binds
to the DNA fragments while the ... | <urn:uuid:878d57e7-5401-4db8-8f76-ca31366e0466> | 3.078125 | 195 | Knowledge Article | Science & Tech. | 29.848077 |
The eruption of Iceland’s Eyjafjallajökull volcano in 2010 turned much of the northern hemisphere into an ash-strewn no-fly zone. But Eyjafjallajökull was just the start. Katla, an Icelandic volcano 10 times bigger, has begun to swell and grumble. Two more giants, Hekla and Laki, could erupt without warning. Iceland is... | <urn:uuid:d96945f9-8477-4d90-b9bc-460571a799c8> | 3.296875 | 148 | Truncated | Science & Tech. | 58.958839 |
Video: 17.7 Foot Python Breaks Size Records
CREDIT: University of Florida photo by Kristen Grace/Florida Museum of Natural History
A 17.7 foot Burmese python found in the Florida Everglades has been recorded as the biggest snake found in the state, scientists say. The snake weighed 164 pounds and carried 87 eggs in its... | <urn:uuid:4d939aa8-9409-4c5c-9031-9b413c345ce4> | 2.84375 | 133 | Truncated | Science & Tech. | 44.876699 |
Clouds, Fire, and Ice in the Cascades
On September 19, 2012, the Advanced Spaceborne Thermal Reflection and Emission Radiometer (ASTER) on NASA’s Terra satellite collected these unique views of the Three Sisters and Broken Top volcanoes near Bend, Oregon. At the time, the Pole Creek fire blazed nearby in Deschutes Nati... | <urn:uuid:ebffa0f3-8233-4380-903e-517cb541c946> | 3.71875 | 630 | Knowledge Article | Science & Tech. | 54.770665 |
|Nov21-08, 05:27 PM||#1|
Recrystallization Percent Recovery
1. The problem statement, all variables and given/known data
Calculating percent recovery of an unknown solid and describing if the percent recovery represents the "true" value of the recovered pure solid.
How do we know that quality of an unknown solid which ... | <urn:uuid:4ceda84a-0331-44da-a4aa-61a39491e7e6> | 2.75 | 288 | Comment Section | Science & Tech. | 43.33159 |
This chapter discusses the rule system in PostgreSQL. Production rule systems are conceptually simple, but there are many subtle points involved in actually using them.
Some other database systems define active database rules, which are usually stored procedures and triggers. In PostgreSQL, these can be implemented usi... | <urn:uuid:e453d012-7017-4815-a74c-2fb779acaa8b> | 3.25 | 177 | Documentation | Software Dev. | 22.137336 |
All information/photos, courtesy of the NOAA
El Niño in the central and eastern equatorial Pacific Ocean is expected to be a dominant climate factor that will influence the December through February winter weather in the United States, according to the 2009 Winter Outlook released by NOAA’s Climate Prediction Center. S... | <urn:uuid:0fa9d687-5d3a-4178-9079-14de156fc24e> | 3.09375 | 506 | Knowledge Article | Science & Tech. | 31.964879 |
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
2003 May 7
Explanation: Look up from Earth's South Pole, and this stellar starscape is what you might see. Alternatively, this patch of sky is also ... | <urn:uuid:ca04df12-990f-43b3-b625-bada266a59b8> | 3.40625 | 226 | Knowledge Article | Science & Tech. | 52.270002 |
In part one of our series on scientific data preservation, we spent some time discussing the challenges of making sure the samples used to generate scientific data get kept around. It might seem that there's an obvious solution to that issue: document things, digitize them, and take advantage of the rapid increases in ... | <urn:uuid:bcd65e97-3944-4994-968a-e3345aceb477> | 3.40625 | 1,520 | Nonfiction Writing | Science & Tech. | 33.654004 |
It can be tempting, when calculating an answer or working with numbers, to just record whatever answer a calculator or computer pumps out. For example: Say we want to multiply 24.8201 by 0.0946. Simply punching these numbers into a calculator we get 0.45598146.
However, writing out every calculated value out to eight, ... | <urn:uuid:34b69122-f958-46b3-81a1-c7cf9801229e> | 3.765625 | 358 | Structured Data | Science & Tech. | 57.990538 |
Your brain contains about 10 billion neurons, each of which connect to other nerve cells through about 10,000 synapses.
Neurons process signals coming into the nervous system, and then produce output signals that stimulate the body’s biological functions, everything from walking to kissing.
Viewed as a whole, the brain... | <urn:uuid:f07f9288-7c17-4f94-b25f-29c46995d5f0> | 3.65625 | 404 | Personal Blog | Science & Tech. | 26.407303 |
|Posted on Jan 27, 2009 02:28:30 PM | Dan Kanigan | 1 Comments ||
The Ares I-X flight test vehicle is being built from a lot of off-the-shelf components, such as the solid rocket booster first stage, which is coming directly from the space shuttle inventory, or the avionics, which are from the Atlas V Evolved Expendabl... | <urn:uuid:a022c0a5-295f-4fc6-9ea0-fe775c3524d4> | 2.84375 | 542 | Personal Blog | Science & Tech. | 44.087322 |
Here d is the exterior derivative, which is defined using the manifold structure only. The theorem is to be considered as a generalisation of the fundamental theorem of calculus and indeed easily proved using this theorem.
The theorem is often used in situations where M is an embedded oriented submanifold of some bigge... | <urn:uuid:ef94c98e-3fbd-4653-b96d-d85019ddde08> | 3.046875 | 333 | Knowledge Article | Science & Tech. | 42.659056 |
Author: XianJim lee
It is hard to debug in embedded system, especially the bug can't be reproduced in simulator. Don't be surprise, if it takes several days to find out why the system failed--just because there is no suitable debugger!
You are lucky, if you develop programs in Linux embedded environment. GDB server is ... | <urn:uuid:5b7d1f91-823e-4c3d-8797-843a852c9c7f> | 3.125 | 1,251 | Personal Blog | Software Dev. | 102.200753 |
I know how to find the area of a triangle in three-space, say ABC: First I would find and then and then use the formula for the area of a parallelogram:
Finding the magnitude of that and dividing it by two (since the area of a triangle is half that of the area of a parallelogram), I would find the area of the triangle ... | <urn:uuid:c84c82b4-a916-45fe-b765-1f2210c30c3a> | 3.078125 | 206 | Q&A Forum | Science & Tech. | 69.698571 |
4.4. The Galactic Center
The central parsec of the galaxy, identified with the Sagittarius A nebula, contains ionized gas powered by about 1040 ionizing photons sec-1 (Lacy el al. 1980). A cluster of He I emission line stars has been observed and spectroscopically analyzed (Tamblyn et al. 1996, Najarro et al. 1997). Th... | <urn:uuid:8d4282c9-39d1-43c1-a009-35fb0e7ad2d3> | 2.734375 | 391 | Academic Writing | Science & Tech. | 43.671044 |
The idea of this game is to add or subtract the two numbers on the
dice and cover the result on the grid, trying to get a line of
three. Are there some numbers that are good to aim for?
Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?
Different combinations of the... | <urn:uuid:9060d095-b37d-46ac-8863-672cc263de5c> | 3.71875 | 478 | Content Listing | Science & Tech. | 59.689906 |
Some of the things I overheard at Stephen Hawking's 70th birthday conference did make me wonder whether I hadn't got the wrong building and stumbled in on a sci-fi convention. "The state of the multiverse". "The Universe is simple but strange". "The future for intelligent life is potentially infinite". And — excuse me ... | <urn:uuid:d8321922-a3f8-44f1-a8b3-41ae942cbc40> | 2.84375 | 727 | Content Listing | Science & Tech. | 45.496606 |
Schopf claimed to have discovered bacteria fossils in these rocks. He published his results in a highly cited Science paper back in 1993 (Schopf, 1993). The title of the paper "Microfossils of the Early Archean Apex chert: new evidence of the antiquity of life" establishes his claim.
It's worth quoting the abstract of ... | <urn:uuid:a932d18a-898c-44fb-ace8-b0a41c2d7bb0> | 3.5625 | 3,030 | Personal Blog | Science & Tech. | 50.278337 |
Large models hold many details. Tons of details. It is precisely this sheer size that makes it so hard for us to grasp the entirety of a complex system in one shot. To ease the process of understanding we require tools to help us make sense of all these details.
To tame these models, we need to understand their inner s... | <urn:uuid:1d521b15-f861-43db-8554-1c3a6713cdf5> | 2.734375 | 486 | Documentation | Software Dev. | 47.411651 |
The Great Wall
|Looking back, no signs of civilization on the blue planet appear.
As preliminary reports have circulated that the Hubble Space Telescope may have imaged the first extrasolar planet directly, the question of how an advanced civilization might indicate its presence over such vast distances has come to the... | <urn:uuid:6c85d3fb-ce46-435d-868c-3a0c5ba97fc1> | 3.328125 | 1,455 | Content Listing | Science & Tech. | 37.08985 |
Physics breakthroughs aside, are there more conventional ways we can reach the stars? Centauri Dreams often cites (with admiration) Robert Forward’s work on beamed laser propulsion, which offers a key advantage: The spacecraft need carry no bulky propellant. Forward’s missions involved a 7200-GW laser to push a 785 ton... | <urn:uuid:91ccb7b1-755d-4ed3-b670-4d97fb4e69dc> | 3.796875 | 990 | Knowledge Article | Science & Tech. | 31.175298 |
Contact: Science Press Package
American Association for the Advancement of Science
Carrying stuff on your head in the Himalayas
Click here for a high resolution photograph.
If you think hiking for an afternoon is a lot of work, imagine hiking for a week while carrying a pack from your head that weighs almost as much as... | <urn:uuid:bf6929cf-81f7-4ab0-9f8a-b1dacf40f9c5> | 3.125 | 452 | Knowledge Article | Science & Tech. | 51.180502 |
O'Reilly Book Excerpts: Programming Visual Basic .NET
ADO.NET, Part 1
This excerpt is Chapter 8 from Programming Visual Basic .NET, published in December 2001 by O'Reilly.
A Brief History of Universal Data Access
Database management systems provide APIs that allow application programmers to create and access databases.... | <urn:uuid:b619889e-d127-482f-bfa8-f0385a710ca2> | 2.984375 | 839 | Truncated | Software Dev. | 43.136288 |
Blue Marlins, Makaira nigricans
Taxonomy Animalia Chordata Actinopterygii Perciformes Istiophoridae Makaira nigricans
Description & Behavior
Largest of the Atlantic marlins, blue marlins, Makaira nigricans (Lacepéde, 1802), aka Atlantic blue marlins, billfishes, Cuban black marlins, marlins, ocean gars, ocean guards, a... | <urn:uuid:b5ab976e-34a7-416f-85c1-f522060f1221> | 3.09375 | 958 | Knowledge Article | Science & Tech. | 33.54297 |
Iodine is separated from the other radioactive species by extraction into carbon tetrachloride. Before this extraction is made, a complete interchange must be affected between the added iodine carrier and the tracer iodine present in the sample. The carrier iodide (I−) is oxidized to periodate (IO4−) in alkaline soluti... | <urn:uuid:8b9968fc-48f6-41da-8186-a5691f0e556d> | 2.78125 | 298 | Tutorial | Science & Tech. | 67.666439 |
There is another way, but it may be difficult to make the measurements. There is a device called a spherometer for measureing the curvature of a surface, but you probably do not have one of those laying around. You could accomplish what it does if you could make very accurate thickness measurements with a micrometer or... | <urn:uuid:9ae4d36f-bc46-43c8-b116-e9eb64022136> | 2.78125 | 159 | Q&A Forum | Science & Tech. | 45.427727 |
Just over a year ago, the spacecraft Huygen's made a 147-minute descent through the dusty atmosphere of Saturn's mammoth moon Titan—it was the most distant touchdown ever by a human-made spacecraft. The landmark trip provided the first views of the surface of the mysterious moon, which is larger than the planet Mercury... | <urn:uuid:18670e96-bee4-446e-a65a-af2e34cd5b8b> | 4.28125 | 339 | Knowledge Article | Science & Tech. | 56.855 |
Gases are the state of matter with the greatest amount of energy.
Pressure is created by gas particles running into the wall of the container. Pressure is measured in many units: 1 atm = 101300 Pa = 101.3 kPa = 760 mm Hg = 14.7 psi. Atmospheric pressure is the pressure due to the layers of atmosphere above us.
Kinetic ... | <urn:uuid:f1ae121f-1518-4b6c-91eb-03d481573459> | 4.15625 | 550 | Knowledge Article | Science & Tech. | 42.521429 |
May 18, 2012 | 5
A hundred million years ago, everything looked quite different. There were dinosaurs on land and gigantic creatures in the sea, and the continents were arranged quite differently. But one thing would be familiar to the modern eye: pollination. Recently, scientists found pollen grains on tiny insects pr... | <urn:uuid:aed5a532-4dd7-413e-82b3-d841bfdc3988> | 4.0625 | 485 | Truncated | Science & Tech. | 47.683348 |
Karatsuba algorithm with Excel VBA
15.04.2009Someone posted in my favorite german office forum - - a new game:
“Let's multiply, starting with 2, the result with itself and so on”.
Have you ever tried to multiply large numbers in Excel? Well, Excel uses a number precision of 15 digits, beyound the numbers are rounded. T... | <urn:uuid:7c0e2bcb-cbaf-4582-83b8-bb7fdb0bccc7> | 3.546875 | 1,468 | Tutorial | Software Dev. | 77.45216 |
Figure 3. Relationship between soil pH and relative plant nutrient availability (a widening bar equates to greater availability). Where nutrients are shown interlocking, they combine at that pH to form insoluble compounds that reduce phosphate solubility.
Credit: Taken from R.W. Miller and D.T. Gardiner. Soils in Our E... | <urn:uuid:1a201618-78b2-4c8f-9586-5f284aa23ac2> | 3.140625 | 76 | Knowledge Article | Science & Tech. | 41.832858 |
Saturday, January 12, 2013
How Erlang does scheduling
In this, I describe why Erlang is different from most other language runtimes. I also describe why it often forgoes throughput for lower latency.
TL;DR - Erlang is different from most other language runtimes in that it targets different values. This describes why it... | <urn:uuid:8581de6d-7340-4aae-a02a-23c6183f4a36> | 2.890625 | 1,921 | Personal Blog | Software Dev. | 61.119031 |
Section 3: Newton's Law of Universal Gravitation
An underlying theme in science is the idea of unification—the attempt to explain seemingly disparate phenomena under the umbrella of a common theoretical framework. The first major unification in physics was Sir Isaac Newton's realization that the same force that caused ... | <urn:uuid:87794702-6740-4320-974e-d4706d505580> | 3.734375 | 1,206 | Knowledge Article | Science & Tech. | 50.250124 |
Recall that if we have y = f(g(x)) that
And if y = f(g(h(x)))
So to facilitate this process a bit I'm going to rewrite this as:
We are going to be using the product rule: y = f(x)g(x) --> y' = f'(x)g(x) + f(x)g'(x). Then we use the chain rule on the individual factors.
After a bit of simplifying I get:
Now. At the poin... | <urn:uuid:f5a31571-11d9-4caf-99c1-c87de1989fd3> | 2.75 | 479 | Tutorial | Science & Tech. | 79.353775 |
"Exploring Materials - Nano Gold" is a hands-on activity in which visitors discover that nanoparticles of gold can appear red, orange or even blue. They learn that a material can act differently when it’s nanometer-sized.
"Exploring Tools - Mitten Challenge" is a hands on activity in which visitors build a Lego® struct... | <urn:uuid:538b9f66-743e-4158-87d5-25735a790c55> | 3.625 | 699 | Content Listing | Science & Tech. | 34.592928 |
Goals: MESSENGER was designed to map the surface composition, study the magnetic field and interior structure of our solar system's smallest and innermost planet -- Mercury. It carries eight instruments to study Mercury's polar deposits, core and magnetic dynamo, crust and mantle, magnetosphere, crustal composition, ge... | <urn:uuid:58052536-7fac-4c76-a83a-5a4fc7567ff7> | 4.09375 | 345 | Knowledge Article | Science & Tech. | 26.009684 |
Protecting Many Species to Help Our Own
That’s according to the most authoritative compilation of living things at risk — the so-called Red List maintained by the International Union for Conservation of Nature.
By generalizing from the few groups that we know fairly well — amphibians, birds and mammals — a study in the... | <urn:uuid:3ca61c7b-f2f8-4145-b11c-f7c4ae45a44b> | 3.796875 | 988 | Nonfiction Writing | Science & Tech. | 34.890619 |
Planting trees is a good idea for saving the environment from global warming. However considering the present scenario where the amount of damage that has been done to the environment is huge, it is a long wait before the benefits of planting trees really make an impact.
All this could change if rather than waiting for... | <urn:uuid:eff4345f-5e6a-4e4f-b587-011b9b78e13e> | 3.953125 | 518 | Knowledge Article | Science & Tech. | 30.332349 |
February 28, 2007
GCRIO Program Overview
Our extensive collection of documents.
Archives of the
Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999
FROM VOLUME 5, NUMBER 3, MARCH 1992
"Multi Wavelength Measurements of Atmospheric Turbidity an... | <urn:uuid:938b0afd-6203-4651-8b39-8a488f9db156> | 2.828125 | 2,366 | Content Listing | Science & Tech. | 57.974831 |
The Current Humidity map shows relative humidity, contoured every 10 percent, for the most recent hour. Relative humidity is defined as the amount of water vapor
in a sample of air compared to the maximum amount of water vapor
the air can hold at any specific temperature
in a form of 0 to 100%. Humidity may also be exp... | <urn:uuid:ee6a3701-fc63-4278-b007-6b21a84e8e5b> | 4.25 | 177 | Knowledge Article | Science & Tech. | 25.485223 |
The change of seasons on Earth has been a cause for celebration since time immemorial. Caused by the tilt of Earth's axis relative to its orbital plane around the sun, seasons have profound changes on our weather and climate. When seasons change, nature reacts differently, depending on location. Temperatures change, ra... | <urn:uuid:ba06807e-30f9-43a9-8141-334074067410> | 3.53125 | 140 | Knowledge Article | Science & Tech. | 58.775254 |
you know that when x=1, the value of y=0, also the slope (y') is flat, and the change of slope (y'') is 0.
The only value you don't know at x=1 is y''', and that can be solved:
3y'''+ 5y''-y' +7y=0 ==> 3y'''+ 0 - 0 + 0=0 ==> y''' must equal 0
So, all given values are 0 and all flat at x=1 ...
Now what happens as you mo... | <urn:uuid:ffb1edd4-a72f-4b9f-91a4-b279be4fcf42> | 3.453125 | 308 | Comment Section | Science & Tech. | 90.098394 |
Widely distributed throughout Southern, Central and East Europe, North Africa and eastwards to Central Asia the Black or Water Poplar is almost certainly native to lowland England but as with many of our tree species its present distribution is largely artificial, the result of widespread planting. Nationally sources c... | <urn:uuid:b58a360f-5ef4-4bb3-86dd-1106f2fc6304> | 3.5625 | 394 | Knowledge Article | Science & Tech. | 25.499167 |
The North-western part Mediterranean basin is characterised by an anticlockwise (cyclonic) gyre. The current is relatively strong (about 0.25 to 0.5 m/s) and the surface water masses (incoming from the Atlantic Ocean trough the Strait of Gibraltar) flow from Corsica Island towards Spain along the French coast and follo... | <urn:uuid:7ccb1331-4d51-451b-9d37-a2a179bcdd0c> | 3.6875 | 237 | Knowledge Article | Science & Tech. | 38.61405 |
In this tutorial, we will discuss about getBytesRead(), getByteWritten() and
method of Inflater class. The Inflater
class provide support for Decompression using ZLIB library. The getBytesRead()
method returns total number of compressed bytes of input stream read by
inflater. It works same as getTotalIn(), but returns ... | <urn:uuid:13b19413-3b8c-42f9-a8fb-60a30b925b15> | 3.140625 | 385 | Documentation | Software Dev. | 36.665959 |
Feature article: Dragonflies by BK
Researched by Brian Kane
Dragonflies! Where do they come from? What do they eat? Do they sting? Where do they get their name? These are some of the many questions that may occur to us when hordes of dragonflies appear in Broome after the wet season each year.
There are a lot of ‘folk ... | <urn:uuid:0c59585a-60e1-49f2-8d1c-4eb06a4dbbe8> | 3.5 | 1,325 | Knowledge Article | Science & Tech. | 53.327667 |
The beast-footed carnivorous dinosaurs
What Is a theropod?
The theropod (meaning "beast-footed") dinosaurs are a diverse group of bipedal saurischian dinosaurs. They include the largest terrestrial carnivores ever to have made the earth tremble. What most people think of as theropods (e.g., T. rex, Deinonychus) are ext... | <urn:uuid:0c5d61de-4edf-4bc7-ac08-ec181a5a2939> | 3.578125 | 1,359 | Knowledge Article | Science & Tech. | 35.538697 |
New Technology Telescope
The 3.58-metre New Technology Telescope (NTT) was inaugurated in 1989. It broke new ground for telescope engineering and design and was the first in the world to have a computer-controlled main mirror.
The main mirror is flexible and its shape is actively adjusted during observations by actuato... | <urn:uuid:44a8c0b8-9b40-433e-8e01-f7b7d3bf861e> | 3.34375 | 385 | Knowledge Article | Science & Tech. | 33.541299 |
Henricia pumila Eernisse et al., 2010
Common name(s): Dwarf mottled henricia; mottled henricia
|Synonyms: Cribrella laeviuscula var. crassa?, Henricia leviuscula variety F|
|Henricia pumila from Sares Head, ray length 18 mm; diameter of central disk 5 mm.|
|(Photo by: Dave Cowles, August 2010 )|
The specific epithet pu... | <urn:uuid:0b553740-6a25-48ae-a4a6-bc39bcea1d68> | 2.78125 | 654 | Knowledge Article | Science & Tech. | 53.509097 |
Carolyn asks: "What is it like in the eye of a hurricane? Is it as it appears on the radar: clear and calm?" and Michelle asks: "Why is the eye of the hurricane so much calmer than the surrounding wind/storm?"
Let's start with the basics about the eye of a hurricane. The eye is the low pressure center of a tropical cyc... | <urn:uuid:00378325-474f-4f6f-b093-d5e3b000b081> | 3.671875 | 375 | Q&A Forum | Science & Tech. | 77.334811 |
Download and unzip the zip file and you will see an
folder. Open the
folder contains the compiled program and you can double click on the
file to work with the source code.
When the game starts, you'll see a screen that
looks similar to this:
The program for this tutorial is almost exactly identical
to the program used... | <urn:uuid:63f7a8c1-80aa-4f7b-b0f5-a2c69545ff33> | 3.375 | 728 | Tutorial | Software Dev. | 56.565556 |