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If renewable resources are harvested at a rate greater than their
regeneration rate, the long-term flow of benefits is reduced, and they
are said to be overharvested. When natural capital is drawn down too
far, fundamental ecosystem changes can occur which make ecosystem
recovery to full service delivery potential very... | <urn:uuid:150a1d85-8ade-4d37-ace6-41f166abc9e3> | 3.859375 | 249 | Truncated | Science & Tech. | 22.40128 |
Monitoring the Atlantic Inflow toward the Arctic (MAIA)
The main objective of MAIA was the development of an inexpensive, reliable system for monitoring the inflow of Atlantic water to the Nordic Seas, based on coastal sea level data, and to see how changes of ice extent in the north are related to this flux. Available... | <urn:uuid:309a3f7d-ce26-4922-b737-60e5fbe820a8> | 2.6875 | 761 | Knowledge Article | Science & Tech. | 31.243361 |
(This article was originally published in Cichlid News Magazine, Jan-00 pp. 32-34, It is reproduced here with the permission of author Ron Coleman and Aquatic promotions).
While few cichlids could ever be regarded as dull, some groups of cichlids are particularly intriguing. The lamprologines are just such a group. Cic... | <urn:uuid:41017db0-3112-4856-93da-1f89bb2c1921> | 3.03125 | 2,140 | Truncated | Science & Tech. | 39.709162 |
Acid-base indicators provide a great platform for a variety of at home chemistry experiments that anyone can do. One of the simplest indicators that is readily available is red cabbage. It turns out that the colored pigment that gives the cabbage it color is a natural acid-base indicator. The red color of cabbage comes... | <urn:uuid:e7745cb4-324b-447d-898a-4f9885366d50> | 3.421875 | 566 | Tutorial | Science & Tech. | 55.288035 |
Graphene by the kilo
Durham Graphene Science founder Karl Coleman is forging ahead in production of single-layer carbon. Sarah Houlton talks to the 2011 Chemistry World entrepreneur of the year
- Karl Coleman founded spin-out Durham Graphene Science to commercialise his method of making graphene flakes
- Chemical vapou... | <urn:uuid:ef6aa318-75c8-4a0e-a3f6-30e75b0e2a5e> | 3.046875 | 1,995 | Nonfiction Writing | Science & Tech. | 38.279736 |
When the Austrian biologist Paul Kammerer was found dead, a gun by his side, in September 1926, the reason for his despair seemed obvious. For years there had been rumours that he was a fraud, and a few weeks earlier a leading researcher hinted at proof that Kammerer had invented data to support his crazy ideas about e... | <urn:uuid:b5c07d09-cee3-462c-8dc0-3a5a927bf05d> | 3.5 | 1,253 | Nonfiction Writing | Science & Tech. | 37.925517 |
Though much weaker than Typhoon Saola, Tropical Storm Damrey was forecast to make landfall on the coast of China in early August 2012. AccuWeather reported that the storms would be “likely within 500 miles [800 kilometers] and 18 hours of each other.”
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s ... | <urn:uuid:90dfb67a-4e35-458a-9f24-09de106987cf> | 3 | 358 | Knowledge Article | Science & Tech. | 68.296333 |
Old man uranium
Earlier this year, I did column on the stockpile of highly enriched uranium at the Y-12 nuclear weapons plant and studies under way there to understand the aging characteristics of uranium and the long-term deployment of uranium components.
Here is more detailed information, based on questions submitted... | <urn:uuid:7c138c95-73e2-4551-8644-7e9cc480b8f8> | 2.9375 | 1,147 | Q&A Forum | Science & Tech. | 32.534972 |
“If you want to make something dirt-cheap, make it out of dirt.”
—Prof. Donald Sadoway, John F. Elliott Professor of Materials Chemistry at the Massachusetts Institute of Technology
I love innovation. I love when people think outside the box. Too often I hear comments like “the battery capability isn’t there,” or “the ... | <urn:uuid:e3c1add6-b30d-45e3-93be-3c56c16be3da> | 2.71875 | 318 | Personal Blog | Science & Tech. | 41.764202 |
Please enter the text in the image above here:
A private group of genetic engineers in the US have a plan to create light-emitting plants for “sustainable natural lighting”. The plants will include the luciferase gene, as present in fireflies and genetically modified rabbits commissioned by artists; the ultimate aim is... | <urn:uuid:ff7fc4c2-c7ed-4095-84fa-6e2f829e4af2> | 3.109375 | 1,973 | Content Listing | Science & Tech. | 49.587631 |
Source code: Lib/linecache.py
The linecache module allows one to get any line from any file, while attempting to optimize internally, using a cache, the common case where many lines are read from a single file. This is used by the traceback module to retrieve source lines for inclusion in the formatted traceback.
The l... | <urn:uuid:cabadedc-7137-47f0-9c4a-843a0ef23cc1> | 2.796875 | 283 | Documentation | Software Dev. | 45.604004 |
|Major contractors||EADS Astrium, Toulouse, France, leading a team of 25 subcontractors from 14 European countries|
|Launch date||9 November 2005 03:33:34 UTC|
|Mission duration||153 days en route; 1,000 days in orbit
7 years, 6 months, and 9 days elapsed
|Semimajor axis||39,468.195 km|
|Orbital period||24 h|
Venus Exp... | <urn:uuid:e378cba4-5ca3-40bc-9d0c-c2838e654e12> | 2.71875 | 3,247 | Knowledge Article | Science & Tech. | 48.554198 |
Comprehensive DescriptionRead full entry
Philippine lizards of the family Gekkonidae comprise 49 species (Taylor, 1915, 1922; Brown and Alcala, 1978) in 10 genera: Gehyra (1), Gekko (13), Hemidactylus (5), Hemiphyllodactylus (2), Lepidodactylus (6), Luperosaurus (8), Ptychozoon (1), Pseudogekko (4), and Cyrtodactylus (... | <urn:uuid:0f5a65cd-eddb-447b-a265-cf4db0aba784> | 3.265625 | 371 | Knowledge Article | Science & Tech. | 25.457168 |
New insights on how solar minimums affect Earth
Since 1611, humans have recorded the comings and goings of black spots on the sun. The number of these sunspots wax and wane over approximately an 11-year cycle -- more sunspots generally mean more activity and eruptions on the sun and vice versa. The number of sunspots c... | <urn:uuid:e0c633a3-719e-4847-91bc-205cfa31b663> | 3.78125 | 1,463 | Truncated | Science & Tech. | 42.623166 |
Venus Fly Trap
Name: Jon Catoe
Hi my name is Jon Catoe and I am a seventh grader. I am currently involved
in a science research project. My topic is the Venus's Fly Trap, for which I have
completed a report. My question is since there is a time of growth where the trap
is not able to gather insects, how does the Venus ... | <urn:uuid:b45c60d7-5416-4980-a76f-7799a39ad50e> | 3.078125 | 209 | Q&A Forum | Science & Tech. | 56.652165 |
Coral has nothing to fear from CO2 (the Australian):
“A WIDESPREAD belief that the world’s coral reefs face a calamitous future due to climate change is proving less resilient than the natural wonders themselves.
Rising sea temperatures, storm damage and ocean acidification have grabbed the headlines as looming threats... | <urn:uuid:394d0187-471e-412a-a148-b7db5aad8be5> | 2.9375 | 263 | Personal Blog | Science & Tech. | 31.915215 |
An Example of a Manifold
Let’s be a little more explicit about our example from last time. The two-dimensional sphere consists of all the points in of unit length. If we pick an orthonormal basis for and write the coordinates with respect to this basis as , , and , then we’re considering all triples with . We want to s... | <urn:uuid:54961d57-a418-48cd-89dc-33daf29ec3b1> | 3.734375 | 416 | Tutorial | Science & Tech. | 55.98999 |
One of the well-documented effects of climate change in the future is increased probability of widespread and long-term drought. Related to those effects will be the accessibility of fresh water to meet the needs of ecosystems and human societies.
The Colorado River system is in the midst of a 10-year drought. Abundant... | <urn:uuid:f34b9ea4-b667-4196-92f8-18ceab389362> | 3.578125 | 589 | Personal Blog | Science & Tech. | 45.641763 |
What Music Does Bacteria Enjoy the Most?
Grade Level: 9th to 12th; Type: Biology
This experiment will explore whether music of different varieties affects the growth of bacteria.
- Does music alter the growth of bacteria?
- Do different kinds of music make the bacteria grow differently?
Although bacteria lack the abili... | <urn:uuid:b1f73cf9-f35b-4be3-8d34-184b14bc448a> | 3.671875 | 604 | Tutorial | Science & Tech. | 42.102922 |
Science & Research
Volume III - 4.11 Statistics Applied to pH in Canned Foods
Section 4 - Basic Statistics and Presentation
|EFFECTIVE DATE: 10/01/2003||REVISED: 01-31-13|
pH is a logarithmic measure for the acidity of an aqueous solution. Since pH represents the negative logarithm of a number, it is not mathematically... | <urn:uuid:df0bbd23-30db-490c-9596-525cc1ec2d2a> | 3.453125 | 311 | Tutorial | Science & Tech. | 44.816693 |
Identity Swap: Finding the variants that human history has favoured
Sequence differences in less than 0.2% of the 3-billion-base human genome play a vital role in a bewildering variety of human disease. Today, researchers from the Wellcome Trust Sanger Institute and the Cambridge University’s Cambridge Institute for Me... | <urn:uuid:8e728872-a33f-4e82-a9ef-3390679f3df1> | 3.359375 | 1,758 | Content Listing | Science & Tech. | 34.781527 |
Intercepts, asymptotes, sketch for quadratic over quadratic:
The x-intercept: Where the function is zero, or the numerator is zero and the denominator is non-zero:
x2 - 9 = 0, or x = 3, x = -3.
The y-intercept: Where x = 0:
Vertical asymptote: where the denominator is zero: x2 - 4 = 0, or x = 2, x = -2.
Horizontal asym... | <urn:uuid:03b38df3-a25c-4630-837c-c4daafe6f13f> | 2.734375 | 147 | Tutorial | Science & Tech. | 53.052222 |
Olsen, Paul E. and Johansson, Annika K., (Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York)
To a first approximation, the transitions between major global climate states (i.e. "ice house" vs. "hot house") do not seem to correlate with the largest scale aspects of tectonic history. Ice house ... | <urn:uuid:09fff63d-75ae-48d5-a984-94faf4c1f4ed> | 2.875 | 380 | Academic Writing | Science & Tech. | 22.734303 |
Let's solve the world's math problems!
Five students earned a prize of 720.00. Peter stayed with twice what did each one of the other four, who received equal amounts. How much Peter has?
- Click and drag over the problem to make highlights.
- Type the next step in the solution to this problem.
- Keep the math beautifu... | <urn:uuid:07ec8852-ce22-4b1f-a86a-c42cbf998db5> | 3.34375 | 242 | Tutorial | Science & Tech. | 101.531124 |
New Images of C/2006 P1
Check out the new images
(Jan 18-25) and
(Jan 26-Feb 05) of the comet by Rob McNaught.
Posters are available from several of these images.
Images of the comet by Gordon Garradd appear here.
What's all the Fuss About?
Every few years a comet becomes bright enough to be easily seen with the naked ... | <urn:uuid:9667fdb0-9fc2-4c10-8375-02b357475077> | 2.796875 | 4,152 | Knowledge Article | Science & Tech. | 78.403707 |
The first test to see whether you can access the database server is to try to create a database. A running PostgreSQL server can manage many databases. Typically, a separate database is used for each project or for each user.
Possibly, your site administrator has already created a database for your use. He should have ... | <urn:uuid:c99a11d8-03f8-4806-935e-b4404cb03856> | 2.90625 | 1,325 | Tutorial | Software Dev. | 47.430187 |
New Form of Matter Discovered, Part Laser, Part Superconductor
2007 10 09
By Lucian Dorneanu | news.softpedia.com
A group of researchers have recently announced the creation of a completely new state of matter that combines the characteristics of lasers with those of the world’s best electrical conductors.
This image s... | <urn:uuid:29300107-3b09-4461-9855-ed508acfedb3> | 3.046875 | 1,138 | Content Listing | Science & Tech. | 34.322288 |
|Home | X-Objects | Stars | Habitability | Life ||
Early Cosmos around the Quasar
On April 23, 2001, a team of astronomers (including Xiaohui Fan, Robert Becker, Michael Strauss, and Richard L. White) working with the Sloan Digital Sky Survey (SDSS) announced that they had observed a distant "quasar" from the earliest ... | <urn:uuid:7018ec73-4b70-4e70-8b8e-51b4dbd6daa3> | 3.359375 | 3,700 | Knowledge Article | Science & Tech. | 46.432898 |
Everyone knows that excessive acceleration accompanied by corresponding braking is an inefficient way to use stored energy, whether it be for ICE or EV's. However, what about the situation where you accelerate from one speed to another at a constant rate, and hold the final speed (like pulling onto a highway)? I conten... | <urn:uuid:b4df0b9d-8de3-45bd-9f3c-79eafc4573c3> | 2.875 | 368 | Comment Section | Science & Tech. | 41.946961 |
NASA recently announced that 97 percent of Greenland’s vast ice sheet had undergone at least some surface melting this summer, compared with a normal melt area of about 50 percent. The 2012 figure, said the headline on the space agency’s press release, was “unprecedented.”
That’s a powerful word in any context, but it’... | <urn:uuid:ec074486-5cac-41ef-9936-e127c81cab04> | 3.265625 | 1,101 | Nonfiction Writing | Science & Tech. | 46.520304 |
What is MitosisWritten by rekhacontentwriter
Home » Science and Engineering
Do you know that a human body is made up of thousand of trillion of cells. Taking an example if you manage to arrange thousand of papers and pile them up then you can physically touch the moon and come back and you can do it number of times. Bu... | <urn:uuid:802f61f9-d49f-4563-8b83-4e6c3e9dcde6> | 3.03125 | 605 | Knowledge Article | Science & Tech. | 43.825847 |
Personally, I’m not against the use of FF, but in order to have a consistent meaning, a word must always have the same abbreviation, don’t you agree? That’s my thoughts on it, anyway–kind of like the same reason why we have standardized HTML.
Let’s not get off topic, though. I don’t think Ultimater would appreciate tha... | <urn:uuid:ef43eec7-8ddc-47be-a5f2-8802ace8882d> | 2.703125 | 475 | Comment Section | Software Dev. | 73.105358 |
Sometimes, distractions can be useful in themselves. That’s the message this week from the Planck space telescope, which has a mighty big mission: to take baby pictures of the universe. While it hasn’t yet accomplished that task, the preliminary disturbances that Planck scientists are now dealing with are yielding cosm... | <urn:uuid:ddb51c9f-ad60-498d-a38a-8d35fbb2d1d4> | 3.46875 | 2,681 | Content Listing | Science & Tech. | 47.30782 |
A letter published March 21 in the online edition of the journal Nature indicates that there are evolutionary reasons why some animals that mimic other more aggressive or dangerous species do so rather imperfectly.
The study conducted by a team of Canadian researchers indicated that, at least in hoverfly populations, p... | <urn:uuid:2e86ea3f-355c-420e-8552-8316df8ddc7d> | 3.1875 | 220 | Personal Blog | Science & Tech. | 27.132765 |
by Katie Bowell, Curator of Cultural Interpretation
Remember when we showed you how to cornstarch combined with water creates a non-Newtonian fluid that acts a lot like Flubber? Well, it turns out that’s not the only way to get the “Flubber” effect. Researchers at the California Institute of Technology have figured out... | <urn:uuid:b4a869b2-0858-497c-b0f8-54eb2f54b298> | 3.09375 | 157 | Personal Blog | Science & Tech. | 45.471379 |
FAST is a new telescope that has panels that can shift position to create smaller curved dishes anywhere on its surface.
A Moment of Science gives a Science Hero Award to Galileo!
What makes Galileo our science hero? For one thing, he moved human knowledge forward against outstanding prejudice and even persecution. Lea... | <urn:uuid:3c22ac96-29c5-43df-a147-de6195bb282b> | 3.109375 | 206 | Content Listing | Science & Tech. | 56.249333 |
Sigma Space MPL (Micropulse LIDAR) measures the amount and vertical distribution of volcanic ash, clouds, and other aerosols above Bariloche, Argentina airport. View Map
See below for HOW TO INTERPRET THE DATA.
HOW TO INTERPRET THE DATA
Based on the same principles as radar, the MPL transmits laser pulses into the atmo... | <urn:uuid:62feb473-acab-4e3a-bc32-13b8d8de17a5> | 3.421875 | 286 | Knowledge Article | Science & Tech. | 36.396788 |
General best practices for performance
You must plan for every feature in your app, and the same is true for performance. Planning for performance consists of determining what your performance-critical scenarios will be, defining what good performance means, and measuring early enough in the development process to ensu... | <urn:uuid:1d61b10a-3472-4e2b-a556-265f9c3217eb> | 2.796875 | 1,549 | Documentation | Software Dev. | 43.718854 |
The effect of removing large numbers of gulls Larus spp. on an island population of oystercatchers Haematopus ostralegus: implications for management.
Harris, M.P.; Wanless, S.. 1997 The effect of removing large numbers of gulls Larus spp. on an island population of oystercatchers Haematopus ostralegus: implications fo... | <urn:uuid:5bd428d0-31e5-4030-ad97-9565f3f415b9> | 3.140625 | 512 | Academic Writing | Science & Tech. | 42.0353 |
A point P is selected anywhere inside an equilateral triangle. What
can you say about the sum of the perpendicular distances from P to
the sides of the triangle? Can you prove your conjecture?
We are given a regular icosahedron having three red vertices. Show
that it has a vertex that has at least two red neighbours.
C... | <urn:uuid:aa609c32-9a32-43e6-8c78-21fc98624bc4> | 2.75 | 396 | Q&A Forum | Science & Tech. | 83.58426 |
This calculator computes the velocity of a circular orbit, where:
vcir is circular velocity.
G is the gravitational constant.
M is the combined mass of the central body and the orbiting body. In the case of spacecraft, the mass of the spacecraft is insignificant and may be ignored.
r is the distance between the orbitin... | <urn:uuid:2dba5f07-ffcb-4860-8110-cafe4abf9e56> | 3.328125 | 80 | Tutorial | Science & Tech. | 45.264615 |
Honeybees. Apis mellifera. Innocuous, diligent workers with only one mission in mind: to survive and provide for the hive. You would hardly ever come across a honeybee taking a break or straying from routine. Why, then, are honeybees in California and South Dakota suddenly abandoning their hives at night? Some seem to ... | <urn:uuid:842c1eee-ec42-47e1-a671-04b2ce1483e1> | 3.015625 | 514 | Personal Blog | Science & Tech. | 47.253314 |
Science subject and location tags
Articles, documents and multimedia from ABC Science
Wednesday, 8 May 2013
The environment has an unexpectedly strong effect on the chemical composition of the cuticle, or body surface, of stingless bees, a new study shows.
Tuesday, 30 April 2013
Cicada wings are cleaned by dew drops ju... | <urn:uuid:bb6e31ec-5d04-438f-8b34-6584db50c9d6> | 2.8125 | 494 | Content Listing | Science & Tech. | 43.396463 |
Copyright © 2013 Elsevier Ltd All rights reserved.
Current Biology, Volume 23, Issue 3, R102-R103, 4 February 2013
CorrespondenceAdd/View Comments (0)
Adaptive aerial righting during the escape dropping of wingless pea aphidsCorresponding author
# Contributed equally to this work
- Pea aphids (Acyrthosiphon pisum) are ... | <urn:uuid:25678ff4-4408-40bd-b728-6af688edd5a7> | 3.59375 | 1,834 | Academic Writing | Science & Tech. | 49.899183 |
[pygtk] confused about the expand and fill in table layout.
krmane at gmail.com
Wed Feb 20 05:03:26 WST 2008
can some one please help me understand the use of fill and expand in
my understanding about table layout is that the attach_left specifies
which column to be used (0 being first column), attach_right specifies
t... | <urn:uuid:88999337-5d58-46c6-bd2f-6aaf2b5f0423> | 2.796875 | 407 | Comment Section | Software Dev. | 57.75824 |
Written By Dan Suthers based on explanations by Scott Ferguson, June Firing, Kyle Hogrefe, and Danny Merritt.
Physical Oceanography studies the movement of ocean water (ranging from small scale oscillations to basin-wide flows) and the physical and chemical characteristics of that water (e.g., temperature and salinity)... | <urn:uuid:c85369e9-074a-45b4-bb3b-ae8c16044913> | 4.25 | 2,894 | Knowledge Article | Science & Tech. | 35.620546 |
The pair of sites in Prince William Sound are located in Knowles Bay, north of Orca Bay and also just north of Shelter Bay on Hinchinbrook Island. These two sites have a clear view of central Prince William Sound. This HF Radar system has already provided new insight on the circulation of Prince William Sound, as well ... | <urn:uuid:30e41172-3131-492a-9e6e-c4dede5337dd> | 2.78125 | 234 | Knowledge Article | Science & Tech. | 32.7075 |
Science Main Index
The nautilus is native to deep ocean waters. It has a multi-chambered shell. Each chamber is sealed and contains gas which provides the nautilus with buoyancy to float. Like the octopus, squid and cuttlefish, the nautilus uses jet propulsion to move forward. It sucks in water, then expels it in a fas... | <urn:uuid:15fec964-4a25-44da-b4ad-96269a7d4d49> | 4.0625 | 161 | Truncated | Science & Tech. | 62.015455 |
The Cosmic Bat — NGC 1788
About this Image
The delicate nebula NGC 1788, located in a dark and often neglected corner of the Orion constellation, is revealed in this finely nuanced image. Although this ghostly cloud is rather isolated from Orion’s bright stars, their powerful winds and light have a strong impact on the... | <urn:uuid:0a09891a-00d7-4d71-b3c0-fcbb12757de9> | 3.03125 | 183 | Truncated | Science & Tech. | 55.946154 |
How does energy move?
I know of three ways in which energy can be transported without
external help. These are :
1. Conduction - This happens when energy is transported without
any transport of matter. It requires a medium. The energy is transported by
by change in random vibrations of the medium. For example an
iron r... | <urn:uuid:9d513923-48f1-4751-8586-8854de878888> | 3.390625 | 483 | Q&A Forum | Science & Tech. | 51.508345 |
Genetic connectivity between and within coral reefs is an important component of resilience. Larval exchange between reefs promotes genetic diversity, which is critical in terms of resilience against any disturbance, particularly mass bleaching events. The spread of selectively advantageous genetic traits, such as blea... | <urn:uuid:9312a927-1c0b-490f-9bec-36d16fa64bcf> | 3.84375 | 933 | Knowledge Article | Science & Tech. | 21.723817 |
The Coastline Paradox
About this video
How can one coastline be two different lengths?
The coastline of Australia is thought to be roughly 12,500km long. But The World Factbook claims the figure is more than double this, at 25,700km. This ambiguity over the length of a coast is known as the coastline paradox.
The lengt... | <urn:uuid:fe377050-29c0-4a0e-82f5-a52bb62b1b0f> | 3.796875 | 312 | Truncated | Science & Tech. | 53.402867 |
A progressive future is at sight when one taps into solar power. Here are some keypoints on how solar power is a clean power source:
No Emissions – as compared to other forms of energy sources, solar power has no sort of emission at all. This is energy at its purest form.
Installation Success – fossil-fuel based power ... | <urn:uuid:7b1da0e1-6b6b-4308-9dae-41ace12bda11> | 2.796875 | 155 | Knowledge Article | Science & Tech. | 39.95145 |
The Rich Colours of a Cosmic Seagull
This new image from ESO’s La Silla Observatory shows part of a stellar nursery nicknamed the Seagull Nebula. This cloud of gas, formally called Sharpless 2-292, seems to form the head of the seagull and glows brightly due to the energetic radiation from a very hot young star lurking... | <urn:uuid:6b457bbe-c4d3-4425-b4c5-338a78e2e084> | 3.3125 | 1,338 | Comment Section | Science & Tech. | 48.382873 |
Sam Bowring, professor of Geology at MIT, says human adaptations to the environment are so specific that we would face significant challenges if our surroundings were suddenly very different.
Visit the EAPS (Earth, Atmospheric and Planetary Sciences) website to learn more about the scientists who are studying the natur... | <urn:uuid:fd6ad825-ec91-4c1b-8ff1-cdaa863e607f> | 2.859375 | 165 | Truncated | Science & Tech. | 32.629909 |
Besides the standard "places to see", the scientifically minded tourist might definitely want to have a look at the Senckenberg Museum, one of the largest museums of natural history in Europe. It is run by the Senckenbergische Naturforschende Gesellschaft and named after Johann Christian Senckenberg, a Frankfurt physic... | <urn:uuid:09ec683a-7c9d-47b9-8b48-53ae7d501714> | 2.734375 | 1,640 | Personal Blog | Science & Tech. | 26.645208 |
Rise of the CyanoHABs
Cyanobacteria (also known as blue-green algae) are proliferating in the U.S. and worldwide, becoming a serious threat to freshwater resources and public health. Results from NCCOS harmful algal bloom programs are uncovering the secrets of why cyanobacteria are so successful so they can be used to ... | <urn:uuid:bf735d99-57bc-4c02-8543-e7ac016ad292> | 3.796875 | 573 | Knowledge Article | Science & Tech. | 26.61516 |
- Google Earth
Google Earth shows 3D overviews of major cities, mountains, and other terrain, as well as driving directions and maps. Also includes Sky, which allows users to view stars and galaxies, and Ocean, which allows users to explore the ocean floor and surface.
- NASA (273)
Learn about the U.S.'s National Aeron... | <urn:uuid:8ab8632c-a425-4bfb-8143-95445d0fecb6> | 3.265625 | 784 | Content Listing | Science & Tech. | 24.059029 |
When is the next meteor shower? EarthSky’s meteor shower guide
Sometimes, after a meteor shower, people report hearing the meteors. Some exceptionally bright meteors have been reported as being accompanied by a low hissing sound – like bacon sizzling.
For years, professional astronomers dismissed the notion of sounds f... | <urn:uuid:32b4c182-dc15-45c8-bf7d-fd6e0d72d6bd> | 3.578125 | 307 | Knowledge Article | Science & Tech. | 55.644118 |
As extended objects rather than point sources, galaxies show a wide variety of forms, some due to intrinsic structures, others due to the way the galaxy is oriented to the line of sight. The random orientations, and the wide spread of distances, are the principal factors that can complicate interpretations of galaxy mo... | <urn:uuid:0dacf0a4-c3fd-432e-9e31-772c21f9288a> | 3.953125 | 1,761 | Academic Writing | Science & Tech. | 40.228052 |
Last month I wrote an article entitled ‘Antarctica and Arctic Polar Opposites‘ that looked at a study which showed that “the total extent of sea ice surrounding Antarctica in the Southern Ocean grew by roughly 6,600 square miles every year, with recent research adding that that growth rate has accelerated recently, up ... | <urn:uuid:022d89ab-0727-4fe9-ba49-e7bbf626b89d> | 3.65625 | 735 | Personal Blog | Science & Tech. | 38.400071 |
|I have a Masters in computer science. I can answer questions on core J2SE, swing and graphics. Please no questions about JSP or J2ME.|
First, you can't name a class sunchronized. It's a keyword in Java. Typically you would use 2 classes for 2 threads if you wanted them to behave differently. Since t1 and t2 are kept o... | <urn:uuid:b3af38f2-9427-47e4-83e1-db52baea47ce> | 3.015625 | 266 | Q&A Forum | Software Dev. | 67.015982 |
A Drop of Salt Water on Mars
This project begins three years after beads of liquid brine were first photographed on one of the Mars Phoenix lander's legs.
"On Earth, everywhere there's liquid water, there is microbial life," said Nilton Renno, a professor in the Department of Atmospheric, Oceanic and Space Sciences who... | <urn:uuid:06b34265-27bf-4aba-9f31-c9bc38a705f4> | 3.84375 | 484 | Knowledge Article | Science & Tech. | 39.339354 |
One of my inspirations for starting this website came from the profound experience I had when looking at the Hubble Deep Field images for the first time. I felt I was looking at the most important image humanity had ever taken.
It was important because for the first time, I got a real feeling for just how immense the u... | <urn:uuid:27f041c6-4e85-464c-af35-61c558e094e6> | 2.859375 | 1,436 | Personal Blog | Science & Tech. | 52.113431 |
Issue Date: Jun 15, 2008
The concentration of CO2 in the atmosphere is at its highest since the past 650,000 years, says the US National Oceanic and Atmospheric Administration. Between 1979 and 2007, the level of CO2, the primary driver of climate change, increased at an average rate of 1.65 parts per million. The grow... | <urn:uuid:f8870a20-39c3-4f8c-8262-468e234570bf> | 2.9375 | 171 | Content Listing | Science & Tech. | 40.31 |
The Earth's climate has changed many times in the past. Subtropical forests have spread from the south into more temperate (or milder, cooler climates) areas. Millions of years later, ice sheets spread from the north covering much of the northern United States, Europe and Asia with great glaciers. Today, nearly all sci... | <urn:uuid:d0db8f5f-6058-4882-b380-1c8c5899ce9a> | 4.03125 | 505 | Tutorial | Science & Tech. | 54.953725 |
Sanger method of DNA sequencing
Fred Sanger developed the first technique for sequencing DNA. DNA is replicated in the presence of chemically altered versions of the A, C, G, and T bases. These bases stop the replication process when they are incorporated into the growing strand of DNA, resulting in varying lengths of ... | <urn:uuid:506fa508-e8fe-4b70-8b31-a7406f7325de> | 3.875 | 169 | Tutorial | Science & Tech. | 67.706119 |
Saving the Condors: Tim Hauck '03 and Matt Podolsky '06
Tim Hauck ’03 and Matt Podolsky ’06 are helping to bring North America’s largest flying land bird back from near extinction. by Aaron King ’09
Each morning, Tim Hauck ’03 and Matt Podolsky ’06 are greeted by the rising sun over the Vermillion Cliffs in northern Ar... | <urn:uuid:d7bb4ccb-2877-4b51-a991-cceb0da45e6b> | 2.765625 | 818 | Truncated | Science & Tech. | 56.485908 |
"It's just one of the things that distinguishes humanity, that we can actually answer questions that are deep and fundamental, make predictions and do science, and that it actually works," said Lisa Randall, professor of physics at Harvard and author of "Knocking on Heaven's Door."
Consider also that all the technology... | <urn:uuid:aec04a3d-a96e-4b28-8809-8bae3d761f88> | 3.25 | 483 | Audio Transcript | Science & Tech. | 40.543182 |
In this chapter, we use Common Lisp to design and implement a CORBA server using the LispWorks ORB.
Our server presents an object-oriented interface to a
object and its accounts. Because we want the bank's account records to persist beyond the lifetime of the server, we would store the account records in a database. Th... | <urn:uuid:9c07a1c0-c323-4e7d-9c68-25f7eff68e18> | 2.765625 | 179 | Documentation | Software Dev. | 37.896622 |
GLOBAL warming may thwart attempts to eradicate rats from the sub-Antarctic island of South Georgia. Glaciers are melting so fast that the rodents will move to new areas before they can be poisoned, with devastating consequences for native birds.
Sailing ships brought rats to South Georgia more than 200 years ago. Sinc... | <urn:uuid:28853cb4-53fc-40c5-a5ad-721d118f40d1> | 3.609375 | 228 | Truncated | Science & Tech. | 54.427538 |
Climate Action: Track Our Progress
Wanting to reduce our impact and take action against climate change is all well and good, but how do we begin to actually make a difference? Set some real goals!
In 2009, NOLS set Carbon Reduction Goals for the school as a whole. We want to reduce our carbon at aggressive levels soone... | <urn:uuid:6c443bd5-24e9-41e2-b64c-73a63b20993a> | 2.71875 | 485 | Tutorial | Science & Tech. | 43.231517 |
II. HABITAT AND DISTRIBUTION
The ribbed mussel can be found along the Atlantic coast from the Gulf of Maine to Florida and the Gulf of Mexico (Franz 2001). It also reported from the San Francisco Bay on the West coast where it was introduced.
Geukensia demissa occurs in the Indian River Lagoon.
III. LIFE HISTORY AND PO... | <urn:uuid:13365ee1-67bd-4b0e-9467-fcfad873a573> | 3.296875 | 1,090 | Knowledge Article | Science & Tech. | 43.387652 |
In science, it is a well known fact that in the process of applying extending theories to the real world, it is as much a question of known “how much” of something is happening, apart from what exactly is happening. Its this crucial aspect that has physicists worrying about adding never ending degrees of precision to a... | <urn:uuid:56c60184-c286-459f-98f0-3c10e8c603e3> | 3.109375 | 2,125 | Academic Writing | Science & Tech. | 35.160935 |
This photograph of a cumulonimbus cloud was taken near Fort Lupton, Colorado. You can see some towers growing in this cloud.
Click on image for full size
Photo courtesy of Gregory Thompson
Supercell Thunderstorms and Squall Lines
A supercell thunderstorm is a huge rotating thunderstorm. It can last for several hours as... | <urn:uuid:9244f65f-cf1b-4e60-bdec-5095969cc961> | 3.453125 | 714 | Content Listing | Science & Tech. | 56.788406 |
The reality is more prosaic.
First of all, mini black holes at the LHC are an option only if one of the theories of "large extra dimensions" was in fact true. But of course, these theories are only speculations so far. Second, should mini black holes be created in high-energy particle collisions, they would evaporate v... | <urn:uuid:29d06dfd-9799-46e7-bba1-7e2be3088f14> | 3.53125 | 1,453 | Comment Section | Science & Tech. | 53.760415 |
126 pages | 8 1/2 x 11
The ocean is a fundamental component of the earth's biosphere. It covers roughly 70 percent of Earth's surface and plays a pivotal role in the cycling of life's building blocks, such as nitrogen, carbon, oxygen, and sulfur. The ocean also contributes to regulating the climate system. Most of the ... | <urn:uuid:a29d481b-0841-4872-b74a-e8a609b13f64> | 3.703125 | 383 | Knowledge Article | Science & Tech. | 28.123535 |
Loxahatchee National Wildlife Refuge; Florida;invasive Plants control; non-native; Invasive species
SPRAYING MELALUKA PLANT. Foreign plants and animals that establish themselves in domestic ecosystems sometimes become highly invasive and aggressive - displacing or out competing beneficial native species. Here, a FWS bi... | <urn:uuid:8a13c5b7-179b-405e-b9bc-355b6692978f> | 2.890625 | 369 | Content Listing | Science & Tech. | 44.711656 |
<programming> The debugging technique where the programmer inserts print statements into a program so that when run the program leaves a "trail of breadcrumbs" allowing him to see which parts were executed. The information output may just be a short string to indicate that a particular point in the code has been reache... | <urn:uuid:4776d761-db2a-4bad-bdcf-b2d9aac9a057> | 3.765625 | 147 | Structured Data | Software Dev. | 39.615 |
A new study from Duke University revises our idea of how the visual system works.
Old idea: bottom up
According to the older idea, images are constructed in our minds in a hierarchical fashion starting at the bottom. Data arriving at the retina is sorted into basic features, such as horizontal and vertical lines. These... | <urn:uuid:8a2cbc30-a6d8-4b4f-9c4d-ea685f91f176> | 3.359375 | 597 | Personal Blog | Science & Tech. | 48.345588 |
In algebra 1 we've covered most line topics I think are important:
* calculating slope from a graph and from 2 points without a graph
* looking at a graph and finding the line equation in all 3 ways (standard, pt-slope,slope-int)
* being given either 2 points or a point and a slope and calculating any of the 3 equation... | <urn:uuid:ba8d9956-a570-4a4d-8d9d-718beea70b66> | 3.5625 | 522 | Personal Blog | Science & Tech. | 59.439086 |
Project 2a: The Unix Shell
There are three objectives to this assignment:
In this assignment, you will implement a command line interpreter or, as it is more commonly known, a shell. The shell should operate in this basic way: when you type in a command (in response to its prompt), the shell creates a child process tha... | <urn:uuid:ee839554-61ca-416c-a9e3-4dfaac826dde> | 3.421875 | 3,096 | Tutorial | Software Dev. | 58.158516 |
Usually slender, elongate, small species. Sexes similar. Stylet usually small, delicate.
photomicrograph by Howard Ferris and Sam Woo, UC Davis.
Esophagus with slender procorpus, median bulb either well-developed, weakly developed or even not obvious; long, slender isthmus, esophageal glands symmetrically arranged, pyr... | <urn:uuid:168d9ea2-1762-48cd-92e2-deb6e97452f2> | 3.046875 | 2,122 | Knowledge Article | Science & Tech. | 43.741983 |
Single-car drivers commuting in fossil-fuel burning cars, smog, pollution, crime -- what other urban scourges can you think of? Half of the world's population currently lives in urban areas; yet these urban areas make up only 2 percent of the world's land and spend three-quarters of the world's resources [source: MIT].... | <urn:uuid:14a74a92-585c-48a1-a795-c7c57f187669> | 3.453125 | 348 | Listicle | Science & Tech. | 37.952493 |
Plants epiphytic, terrestrial, or on rock. Stems long-creeping, often threadlike and intertwining, or short-erect, protostelic, bearing brown hairs of 1--2 types. Roots sparse or absent. Leaves small, 0.5--20 × 0.2--5 cm, often forming dense mats. Petiole short, threadlike to wiry, often winged part or entire length. B... | <urn:uuid:fd64e098-4a41-43e5-9829-5b9a8e004ce0> | 3.484375 | 499 | Knowledge Article | Science & Tech. | 22.629784 |
Water weighs 62.4 pounds per cubic foot. When a vehicle stalls in water, the water's momentum is transferred to the car. For each foot the water rises, 500 pounds of lateral force is applied to the car. For each foot the water rises up the side of the car, the car displaces 1,500 pounds of water. In effect, the car wei... | <urn:uuid:a1f3b6d3-f4fd-416d-90bd-e7c0f27f8dd9> | 2.921875 | 114 | Knowledge Article | Science & Tech. | 94.929891 |
|Where's the other star?
At the center of this supernova remnant should be the companion star to the star that blew up.
Identifying this star is important for understanding just how
Type Ia supernova detonate, which in turn could lead to a better understanding of why the brightness of
such explosions are so predictable... | <urn:uuid:4350bd80-0e27-4cdc-a687-268f4f29b8cf> | 3.296875 | 282 | Knowledge Article | Science & Tech. | 59.221198 |
Radioactivity : The Pros and Cons
Since its discovery by Henri Becquerel in 1896 much has been learned about
radioactive elements and their properties. This knowledge has led to
many beneficial applications of the numerous radioisotopes.
Did you know that some of the foods we eat have been treated by
exposure to radiat... | <urn:uuid:690e1218-8da7-47d3-8575-c4113af8db30> | 3.578125 | 428 | Knowledge Article | Science & Tech. | 44.411125 |
Name: Briana R.
Our physics class is researching GMRs and magnetic fields
and we were wondering if you could tell us how to make one. How do they
work? Anything information you could give us would me amazing.
The GMR effect depends on sandwiching a thin non-ferromagnetic layer between
two magnetic materials. Because yo... | <urn:uuid:23a159e9-05fa-4c18-a4b9-6250432ab8c8> | 3.703125 | 263 | Q&A Forum | Science & Tech. | 46.742403 |
A. iberus is on the IUCN red list of endangered species. DD (IUCN 2004). EN B1+2bcd in the Red List of freshwater fish from Spain (Doadrio 2002).
A. iberus is included into the Annexes II and III of The Bern Convention (1979) and in the Annexe II of the European Council Directive (1992/43/EEC).
At national level, it is... | <urn:uuid:45719958-1870-4ca3-a88a-5261450636a4> | 3.3125 | 308 | Knowledge Article | Science & Tech. | 39.782933 |
Browsing through the blogosphere recently, I came across an interesting little story about the scientific method, scientific progress, and un-scientific spin (h/t Hank Roberts). The subject concerns the polar ozone hole in Antarctica and a possible role for cosmic rays in its variability on solar cycle timescales. The ... | <urn:uuid:1dfaab98-d623-4e79-b2fd-f25716bcbc17> | 2.96875 | 1,447 | Personal Blog | Science & Tech. | 43.147989 |
Introduction to CGIIntroduction to CGI
When a server has client's request to compute a CGIprogram, usually written in C-like or Perl languages,is executed. A CGI receives parameters, executes oneor more computations, gets a result; send it back tothe client and exits. This means that at each client'srequest the same CG... | <urn:uuid:0f9c3fe6-bcef-4947-ae3b-a06c6d5acf8e> | 3.109375 | 104 | Truncated | Software Dev. | 36.280962 |
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.
2006 July 31
Explanation: Have methane lakes been discovered on Saturn's Titan? That exciting possibility was uncovered from analyses of radar image... | <urn:uuid:d11525d0-b635-4402-81f7-3148ba014cfd> | 3.46875 | 230 | Knowledge Article | Science & Tech. | 32.28 |
Conditions of Use
The water cycle!!!!
First in the water cycle it goes from evaporation to water vapor to some form of precipitation to transpiration to groundwater. Evaporation is warmth From the sun and causes water from lakes,and streams and soils to turn into water vapor in the air. Water vapor is water in a gas fo... | <urn:uuid:a02bad61-7559-4806-b6a5-968b32ee2444> | 2.84375 | 389 | Personal Blog | Science & Tech. | 66.473935 |
|Mars's southern polar ice cap, seen here in true color, has shrunk in recent years due to planetary warming—similar to what's happening on Earth|
Mars Melt Hints at Solar, Not Human, Cause for Warming, Scientist Says
Mars, too, appears to be enjoying more mild and balmy temperatures. In 2005 data from NASA's Mars Glob... | <urn:uuid:09bc5c4e-e367-49d9-baaf-795108019c22> | 3.78125 | 289 | Personal Blog | Science & Tech. | 52.943377 |
In powerful electromagnets, the magnetic field exerts a force on each turn of the windings, due to the Lorentz force acting on the moving charges within the wire. The Lorentz force is perpendicular to both the axis of the wire and the magnetic field. It can be visualized as a pressure between the magnetic field lines, ... | <urn:uuid:e1244394-882c-497f-8c97-03e5b55c1270> | 4.25 | 340 | Tutorial | Science & Tech. | 48.629537 |
||This article needs additional citations for verification. (February 2011)|
Raman scattering or the Raman effect (pron.: //) is the inelastic scattering of a photon. It was discovered by C. V. Raman and K. S. Krishnan in liquids, and by G. Landsberg and L. I. Mandelstam in crystals. The effect had been predicted theor... | <urn:uuid:1f486089-e9c1-4230-9478-d4a8599ae967> | 3.4375 | 2,824 | Knowledge Article | Science & Tech. | 40.827524 |
Brief SummaryRead full entry
The Great Frigatebird (Fregata minor) is a large dispersive seabird in the frigatebird family. Major nesting populations are found in the Pacific (including Galapagos Islands) and Indian Oceans, as well as a population in the South Atlantic.
The Great Frigatebird is a lightly built large se... | <urn:uuid:a31342a6-106a-4dd2-8a36-86209791f909> | 3.34375 | 206 | Knowledge Article | Science & Tech. | 42.0175 |
Bob Tisdale, author of the awesome book “Who Turned on the Heat?” presented an interesting problem that turns out to be a good application of robust statistical tests called empirical fluctuation processes.
Bob notes that sea surface temperature (SST) in a large region of the globe in the Eastern Pacific does not appea... | <urn:uuid:b44c48fc-14d5-4f4c-a74d-0f9e0c969aaa> | 2.75 | 892 | Academic Writing | Science & Tech. | 45.891421 |
Section 4: Strings and Extra Dimensions
Figure 9: A depiction of one of the six-dimensional spaces that seem promising for string compactification.
Source: © Wikimedia Commons, CC Attribution-Share Alike 2.5 Generic license. Author: Lunch, 23 September 2007. More info
We have already mentioned that string theories that... | <urn:uuid:ce0b91e4-e337-4c4e-a132-16e11e5da7ae> | 4.03125 | 1,876 | Academic Writing | Science & Tech. | 43.052426 |