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The University of Central Florida has detected what could be its first planet, only two-thirds the size of Earth and located right around the corner, cosmically speaking, at a mere 33light- years away.
A new NASA mission called the Radiation Belt Storm Probes (RBSP), due to launch in August 2012, will improve our under... | <urn:uuid:3aff0b68-c344-4634-a7e9-34ccbb3c8d39> | 3.421875 | 292 | Content Listing | Science & Tech. | 34.586778 | 95,625,055 |
SCALAR WAVE TECHNOLOGY
Prof. Dr.-Ing. Konstantin Meyl provides a construction Kit for academic institutions that demonstrates Nicola Tesla’s magnifying transmitter.
This kit enables you to construct an energy transmission line according to Tesla, as it has been demonstrated by us on various fairs and congresses. The en... | <urn:uuid:2119075e-9395-4281-b0cd-c9d4c31ed93a> | 3.171875 | 350 | Truncated | Science & Tech. | 47.741063 | 95,625,089 |
In synthetic chemistry, ‘carbene’ species—compounds bearing a carbon atom with two unpaired electrons—have a ferocious reputation. Left uncontrolled, they will react with almost any molecule they meet.
But by harnessing this vigor with transition metals, chemists can turn carbenes into powerful chemical transformation ... | <urn:uuid:cab96632-5369-412f-a2ec-aa4ad8486834> | 2.65625 | 1,336 | Content Listing | Science & Tech. | 34.927968 | 95,625,093 |
A View from Emerging Technology from the arXiv
The Search For Extraterrestrial Civilizations' Waste Energy
If they’re out there, other advanced civilisations should be emitting waste energy like hot exhaust. And that provides a good way to spot them, argue SETI experts.
Back in 1974, the American astronomer Michael Har... | <urn:uuid:b9cec8b3-05d7-4f6e-a7cc-ea572fd1446e> | 3.265625 | 806 | Truncated | Science & Tech. | 39.741367 | 95,625,096 |
In this chapter we shall study nuclear sizes and shapes. In principle, this information may be obtained from scattering experiments (e. g., scattering of protons or α particles) and when Rutherford discovered that nuclei have a radial extent of less than 10−14 m, he employed a scattering. In practice, however, there ar... | <urn:uuid:323b6302-b7ed-4c95-b965-341ed336b21c> | 4.0625 | 152 | Truncated | Science & Tech. | 33.376668 | 95,625,106 |
London, March 20 (teleSUR-RHC) The Amazon rainforest, the “lungs of the world,” is losing its capacity to absorb carbon dioxide, warned a study published Wednesday in the journal Nature.
Trees of the Amazon have been increasingly dying younger over the past two decades, the international team of scientists found – ther... | <urn:uuid:17215b26-86f0-4885-a4c9-546a15907a09> | 3 | 479 | News Article | Science & Tech. | 36.490753 | 95,625,115 |
An international team of researchers from the Moscow Institute of Physics and Technology, Forschungszentrum Jülich, the European Synchrotron Radiation Facility, the Institut de Biologie Structurale, and the Max Planck Institute of Biophysics has determined the 3-D structure of channelrhodopsin 2, a membrane protein wid... | <urn:uuid:0dceba63-73aa-409a-8289-a4525978a403> | 3.65625 | 1,658 | Content Listing | Science & Tech. | 40.836691 | 95,625,120 |
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RAP has published findings from its survey of the Kaijende Highlands, Enga Province in Papua New Guinea. This expedition documented over 600 species in an area of stunning beauty. Sixteen plant species and 8 frog species were new to science.
There are currently no reviews for this book. Be the first to ... | <urn:uuid:9fd52a29-97e4-474f-b8f4-3d2d71bd728f> | 2.65625 | 179 | Product Page | Science & Tech. | 41.702912 | 95,625,147 |
667. How can you make electricity with magnets? - AL
You can make electricity by moving a magnet past a wire. The magnet has a magnetic field around it—something that exerts forces on magnetic poles. If you move the magnet and its magnetic field, you create an electric field—something that exerts forces on electric cha... | <urn:uuid:21c866b7-e4e4-415c-993f-bb4f3573b373> | 3.9375 | 161 | Q&A Forum | Science & Tech. | 45.744842 | 95,625,152 |
New questions about geology, oceanography and seafloor ecosystems are being raised because of research by a Mississippi State University geologist.
Lead author Adam Skarke, assistant professor of geosciences at MSU, worked with researchers from the U.S. Geological Survey (USGS) and other institutions on a scientific te... | <urn:uuid:cf0a2a60-3c6a-4a62-b20d-a343374166c1> | 3.125 | 2,006 | Content Listing | Science & Tech. | 39.735022 | 95,625,208 |
"We can monitor the process directly, and that gives us a different perspective," said Roberto Galletto, a postdoctoral scholar at UC Davis and first author on a paper published Sept. 20 on the Web site of the journal Nature.
In E. coli bacteria, molecules of an enzyme called RecA attach themselves along a DNA strand, ... | <urn:uuid:c04dc034-1860-489a-ba5b-5dc980acf512> | 3.03125 | 1,151 | Content Listing | Science & Tech. | 41.9361 | 95,625,209 |
The NDACC Working Group on Water Vapor announces the publication: ISSI Scientific Report 10: Monitoring Atmospheric Water Vapour edited by Niklaus Kampfer. The aim of the book is to assess in detail in situ and remote sensing techniques presently used to monitor on a regular basis the distribution of atmospheric water ... | <urn:uuid:902798d6-d7bb-4df9-aa4e-3341d8305526> | 2.515625 | 334 | News (Org.) | Science & Tech. | 22.978421 | 95,625,225 |
The research also showed that arrestin interacts with several other proteins within cells to regulate longevity. The human version of one of these proteins is PTEN, a well-known tumor suppressor. The study, to be published in the online edition of the Journal of Biological Chemistry, was chosen by the journal as the "P... | <urn:uuid:27a93400-3be8-4531-bc2c-e32992f3d935> | 3.28125 | 1,515 | Content Listing | Science & Tech. | 44.213524 | 95,625,245 |
Protection of fish spawning habitat for the conservation of warm-temperate reef-fish fisheries of shelf-edge reefs of Florida
We mapped and briefly describe the surficial geology of selected examples of shelf-edge reefs (50–120 m deep) of the southeastern United States, which are apparently derived from ancient Pleisto... | <urn:uuid:aed17626-31c0-4058-99d7-d272c9933533> | 3.5 | 486 | Academic Writing | Science & Tech. | 6.587065 | 95,625,251 |
ISRO’s RLV-TD: India’s first indigenous reusable space shuttle RLV-TD was successfully launched from Sriharikota in Andhra Pradesh at 7 am today. The purpose of the experiment is not to see it float but to glide and navigate from a velocity five times higher than the speed of sound onto a designated virtual runway in t... | <urn:uuid:b1e93282-7652-4a86-bbe8-77f82604def5> | 3.078125 | 563 | Listicle | Science & Tech. | 66.614282 | 95,625,258 |
Beam me up Scotty! Imagine being teleported from one place to another via Star Trek's transporter.
Well, physicists are one step closer to turning this piece of fiction into fact, with the annoying caveat being that we will be teleporting information and not humans.
Researchers have for the first time teleported photon... | <urn:uuid:473e8da0-0084-496e-8df7-ae3c25b7c480> | 2.984375 | 370 | Truncated | Science & Tech. | 36.956259 | 95,625,275 |
Statistics Definitions > Relative Precision
What is Relative Precision?
“Relative Precision”(RP) is one of those catch all terms that can mean slightly different things depending on where you’re using it. For example, the coefficient of variation is a type of RP used to compare results from two tests or surveys, while ... | <urn:uuid:068d3bab-0687-421c-ad8b-7688ba47c43f> | 4.46875 | 494 | Knowledge Article | Science & Tech. | 46.063303 | 95,625,282 |
The ecliptic is the apparent path of the Sun on the celestial sphere, and is the basis for the ecliptic coordinate system. It also refers to the plane of this path, which is coplanar with the orbit of the Earth around the Sun (and hence the apparent orbit of the Sun around the Earth.) The path of the Sun is not normall... | <urn:uuid:8ea5c1c2-4038-4259-b87d-911be524a40a> | 4.15625 | 3,884 | Knowledge Article | Science & Tech. | 58.951805 | 95,625,284 |
The discovery of quasars in the early 1960s marked a turning point in astronomy and opened for us a vastly more immense vista on the universe. The tale of that discovery is completely fascinating, being best told by those closely involved. The main detail necessary here is that quasars appear as point-like optical sour... | <urn:uuid:d88845b0-4949-4a94-9eeb-a15d35cca461> | 3.921875 | 361 | Truncated | Science & Tech. | 45.923766 | 95,625,293 |
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By: Kentwood D Wells(Author)
1148 pages, 116 b/w photos, 323 b/w illustrations, 45 tables
Consisting of more than six thousand species, amphibians are more diverse than mammals and are found on every continent save Antarctica. Despite the abundance and diversity of these animals, many aspects of the bio... | <urn:uuid:9979b0f1-7e88-4113-b91c-83b991849c70> | 3.046875 | 409 | Product Page | Science & Tech. | 22.125016 | 95,625,303 |
A View from Brittany Sauser
Britain Announces New Space Agency
The government says a space agency could boost the country’s economy and science.
The UK government has announced a new national space agency that will start up on April 1 with the opening of a $60 million facility called the International Space Innovation ... | <urn:uuid:2d11e01a-e0d3-46c5-a38c-3570ff31ba1b> | 2.5625 | 445 | News Article | Science & Tech. | 36.857138 | 95,625,304 |
Authors: George Rajna
An asymmetry must exist here somewhere but we simply do not understand where the difference is. What is the source of the symmetry break? They have successfully deciphered the total angular momentum (spin) of the nucleon, determining how it's shared among its constituents. The resulting values f... | <urn:uuid:d5f90d26-32ee-44e4-81b0-d18c4bd43357> | 2.96875 | 493 | Knowledge Article | Science & Tech. | 37.958971 | 95,625,306 |
Scientists around the world do not stop the fight against superbugs. These microorganisms are resistant to most modern antibiotics and pose a serious danger to humans, especially the patient.
In the search for substances capable of defeating superbugs, scientists have repeatedly turned to animals. So, earlier hope for ... | <urn:uuid:32b27d1f-6016-47ce-a4f7-3c37a7aea051> | 3.1875 | 353 | News Article | Science & Tech. | 33.788322 | 95,625,319 |
Pictured: The bees fitted with microchips to find out why their species is dying
It is a remarkably hairy close-up.
But this tiny microchip attached to a bee’s back will hopefully explain why so many honeybees are dying from disease.
Professor Juergen Tautz and his team at the University of Wurzburg in Germany are stud... | <urn:uuid:fa7ee6db-cb55-445f-84d3-7f686e14d7ed> | 3.546875 | 783 | Truncated | Science & Tech. | 42.80733 | 95,625,342 |
Chord - TS v2
The radius of circle k measures 87 cm. Chord GH = 22 cm. What is TS?
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Today, for the first time ever, a team of researchers led by Robert Linhardt of Rensselaer Polytechnic Institute has announced in the October 9 Advanced Online Publication edition of the journal Nature Chemical Biology the sequence of a complete complex carbohydrate biopolymer. The surprising discovery provides the sci... | <urn:uuid:e2120836-e0b5-4c8f-8265-a17944fef78e> | 2.78125 | 1,879 | Content Listing | Science & Tech. | 34.976057 | 95,625,370 |
Data and Tools
Biology and Ecosystems Datasets
Mapping, Remote Sensing, and Geospatial Data
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given ty... | <urn:uuid:45a008ed-e24e-4326-b3f1-ebe039c2275d> | 2.890625 | 1,224 | Content Listing | Science & Tech. | 31.359435 | 95,625,372 |
Trevor Nace in Forbes:
Scientists have long known about the anomalous “warming hole” in the North Atlantic Ocean, an area immune to warming of Earth's oceans. This cool zone in the North Atlantic Ocean appears to be associated with a slowdown in the Atlantic Meridional Overturning Circulation (AMOC), one of the key dri... | <urn:uuid:6c9b002b-a470-4dc3-a519-8327d311a41a> | 3.671875 | 355 | News Article | Science & Tech. | 38.305275 | 95,625,383 |
10.5 Law of Cosines. Obj : ____________________ ________________________. For any triangle ABC with sides a, b, and c. a 2 = b 2 + c 2 – 2bc cos A b 2 = a 2 + c 2 – 2ac cos B c 2 = a 2 + b 2 – 2ab cos C. You can use the Law of Cosines to solve a triangle if:
Download Policy: Content on the Website is provided to you AS... | <urn:uuid:346f54a0-bc86-4252-b845-4f5c0aeefed2> | 3.3125 | 268 | Listicle | Science & Tech. | 88.465273 | 95,625,386 |
WASHINGTON, D.C., December 20, 2017 -- To build tomorrow's quantum computers, some researchers are turning to dark excitons, which are bound pairs of an electron and the absence of an electron called a hole. As a promising quantum bit, or qubit, it can store information in its spin state, analogous to how a regular, cl... | <urn:uuid:f610c55e-1fdf-401b-a65a-d62be9e0f438> | 4.03125 | 1,027 | News Article | Science & Tech. | 42.863984 | 95,625,393 |
Wavelike compression ridge on the surface of viscous lava produced during downslope movement (Francis and Oppenheimer 2004).
A type of pressure ridge in viscous lava flow.
Corrugations formed in coulées. Ridges form in response to compression parallel to flow during advance of some silicic lavas (Fink and Anderson 2000... | <urn:uuid:aeb4a6f2-7fc3-43e7-8262-f0f2487a4234> | 3.28125 | 575 | Academic Writing | Science & Tech. | 48.012403 | 95,625,416 |
Lead pollution in the air stimulates the formation of ice particles in clouds.
A team of scientists from the USA, Germany and Switzerland has found that particles containing lead are excellent seeds for the formation of ice crystals in clouds. This not only has a bearing on the formation of rain and other forms of prec... | <urn:uuid:1fcdc58b-253f-4c3d-9100-92e73cb10f9d> | 3.640625 | 1,883 | Content Listing | Science & Tech. | 33.358313 | 95,625,418 |
The first strains of human immunodeficiency virus appeared in the early XX century in Africa (34). The closest evolutionary ancestors of HIV viruses were similar to simian immunodeficiency viruses, and the first infected humans could be hunters who butchered the dead monkeys. Currently, according to the World Health Or... | <urn:uuid:53e75a6d-1d79-486b-8470-34ef25668eb8> | 4.03125 | 1,237 | Knowledge Article | Science & Tech. | 28.371268 | 95,625,466 |
Experimental manipulations of fish in a Northern California river during summer base flow reveal that they have large effects on predators, herbivores, and plants in river food webs. California roach and juvenile steelhead consume predatory insects and fish fry, which feed on algivorous chironomid larvae. In the presen... | <urn:uuid:e91c8933-52ed-4057-9769-2564bf03253f> | 3.4375 | 214 | Academic Writing | Science & Tech. | 10.671551 | 95,625,467 |
Considering Climate Change: Fire Island and Storms
- Grade Level:
- Ninth Grade-Twelfth Grade
- Biology: Plants, Climate Change, Earth Science
- National/State Standards:
- Next Generation Science Standards: HS-LS2 Ecosystems; HS-ESS2 Earth's Systems; HS-ESS3 Earth and Human Activity
Common Core Standards: RST Grades 9... | <urn:uuid:dfffee2f-808b-4ac4-afdf-4e41e3a5bd39> | 3.78125 | 694 | Tutorial | Science & Tech. | 3.608699 | 95,625,505 |
Authors: George Rajna
Magnetic quantum objects in superconductors, so-called "fluxons," are particularly suitable for the storage and processing of data bits. Researchers have made the first direct visual observation and measurement of ultra-fast vortex dynamics in superconductors. By gently prodding a swirling cloud... | <urn:uuid:db3067ae-3372-448c-9304-d64730cd20c3> | 2.921875 | 570 | Knowledge Article | Science & Tech. | 23.546988 | 95,625,523 |
The W88 is a United States thermonuclear warhead, with an estimated yield of 475 kilotons (kt), and is small enough to fit on MIRVed missiles. The W88 was designed at the Los Alamos National Laboratory in the 1970s. In 1999, the director of Los Alamos who had presided over its design described it as "the most advanced ... | <urn:uuid:b3f3f050-b7f0-4d08-ac8e-edf70584f336> | 2.515625 | 1,188 | Knowledge Article | Science & Tech. | 55.759745 | 95,625,527 |
Swift optionals are one of the most confusing parts of the language for beginners, but actually are fairly easy to understand. Put simply, if I declare a variable as an integer, that means it must hold a number. That number might be 0, 1, -1, 159, -758119, or whatever, but it's definitely a number. This works great for... | <urn:uuid:40c8e60d-a1a9-45af-88ab-9abf9e4749c9> | 2.796875 | 398 | Tutorial | Software Dev. | 64.658125 | 95,625,531 |
DNS server that replies the same address ("127.0.0.1" by default) to all type A queries and NXDOMAIN to any other query.
It's often useful during development to access local services using a local domain. Existing options are:
- Add them all to
/etc/hosts(quickly becomes a mess, have to list all subdomains)
- Run a DNS... | <urn:uuid:63788254-3272-4e4f-9ba8-4ec701418c1d> | 2.5625 | 396 | Documentation | Software Dev. | 70.949088 | 95,625,538 |
Composting waste is heralded as being good for the environment. But it turns out that compost collected from homes and grocery stores is a previously unknown source of microplastic pollution, a new study April 4 in Science Advances reports.
This plastic gets spread over fields, where it may be eaten by worms and enter ... | <urn:uuid:13d58aae-b490-4f4d-b4cd-526d30474939> | 3.5 | 319 | Truncated | Science & Tech. | 36.871613 | 95,625,574 |
Mercury(II) oxide, also called mercuric oxide or simply mercury oxide, has a formula of HgO. It has a red or orange color. Mercury(II) oxide is a solid at room temperature and pressure. The mineral form montroydite is very rarely found.
3D model (JSmol)
|Molar mass||216.59 g·mol−1|
|Appearance||Yellow or red solid|
|Me... | <urn:uuid:ddec555d-50a5-4f90-9c03-fc80c58e5beb> | 3.546875 | 1,298 | Knowledge Article | Science & Tech. | 66.792779 | 95,625,582 |
Equisetum and the cycling of mercury at Mount St. Helens: Plant-soil relations, 1980–1984
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The Hg content ofEquisetum shoots at six stations near Mount St. Helens rose to a peak value in July 1982, 26 mo after the great eruption of May 1981.
The July 1982 peak in plant Hg content was followed by a continu... | <urn:uuid:3e1684eb-9b26-4a02-a1be-e2f32d5ece0c> | 2.859375 | 563 | Truncated | Science & Tech. | 90.529319 | 95,625,583 |
Differential Equations: Boundary Value Problems
The previous chapter has discussed the solution of differential equations of the “initial value” type, where all the values needed to specify a specific solution are given at one specific initial value of the independent variable. Many time dependent differential equation... | <urn:uuid:7040ef0d-2477-49a3-a958-1ed0fcb2bb45> | 3.578125 | 394 | Truncated | Science & Tech. | 13.630592 | 95,625,584 |
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John Dalton - Pictured atoms as tiny, in destructive particles, with no internal structure
J,J Thomson - descovered the electron.
Hantaro Nagaoka - A atom has a central nucleus. Electrons move in orbits like the rings around the Saturn.
Ernest Rutherford - Discovers a atom has a small... | <urn:uuid:4c9468e3-65b9-433a-a5c6-cbc5bf147618> | 3.671875 | 202 | Listicle | Science & Tech. | 37.527086 | 95,625,587 |
Scientists have discovered an indirect microbial mechanism whereby bacteria kill coral with the help of algae. Human activities are contributing to the growth of algae on coral reefs, setting the stage for the long-term continued decline of coral.
Coral (Acropora) from the Line Islands covered by bubble algae (Dictyosp... | <urn:uuid:7f567ad8-c303-4e6c-ae8b-d06dd2828d4b> | 3.984375 | 1,588 | Content Listing | Science & Tech. | 36.210882 | 95,625,602 |
Imagine building a chemical reactor small enough to study nanoparticles a billionth of a meter across. A billion times smaller than a raindrop is the volume of an E. coli cell. And another million times smaller would be a reactor small enough to study isolated nanoparticles. Add to that the challenge of making not just... | <urn:uuid:e1840cdd-0991-4633-b845-201b1334bf97> | 2.859375 | 99 | Content Listing | Science & Tech. | 49.556016 | 95,625,617 |
Focusing on the Wirral in Merseyside and West Lancashire the study of 100 men, whose surnames were in existence as far back as medieval times, has revealed that 50 per cent of their DNA is specifically linked to Scandinavian ancestry.
The collaborative study, by The University of Nottingham, the University of Leicester... | <urn:uuid:6d06c78a-8d41-41c5-a802-850e23ca8362> | 3.21875 | 1,155 | Content Listing | Science & Tech. | 40.347705 | 95,625,666 |
By: Reem Nasr
The last time Americans used as much renewable energy as they do now was in the 1930s, when the burning of wood was more widespread.
That’s according to recent analysis by the U.S. Energy Information Administration, released on Thursday. The study found that renewable energy accounted for 9.8 percent of t... | <urn:uuid:281e5f62-6633-4dec-8b36-5d96b6375e1b> | 2.96875 | 251 | News Article | Science & Tech. | 48.556765 | 95,625,692 |
Shelving Guide: Electrical Engineering
In 1900 the great German theoretical physicist Max Planck formulated a correct mathematical description of blackbody radiation. Today, understanding the behavior of a blackbody is of importance to many fields including thermal and infrared systems engineering, pyrometry, astronomy... | <urn:uuid:7b04468d-cc4b-4f3b-8ff4-9d53eeca81e5> | 3.3125 | 716 | Product Page | Science & Tech. | 19.833706 | 95,625,701 |
organism, mostly terrestrial, of the class Arachnida, order Araneae, with four pairs of legs and a two-part body consisting of a cephalothorax, or prosoma, and an unsegmented abdomen, or opisthosoma.
The cephalothorax is covered by a shield, or carapace, and bears eight simple eyes. On the underside of the head (the ce... | <urn:uuid:05b1d862-d562-44ee-b698-d878f6f89647> | 3.71875 | 768 | Knowledge Article | Science & Tech. | 49.591346 | 95,625,711 |
If you're searching for Facts about the Oceanic Crust For Kids to help with your children's homework, to use as a website resource for your classroom, or to use in your lesson plan for your students, the information below can help.
- Oceanic crust is the uppermost layer of the oceanic portion of a tectonic plate.
- The... | <urn:uuid:18f43881-3a20-43a7-90cc-39440e662ac8> | 4.46875 | 580 | Knowledge Article | Science & Tech. | 37.596392 | 95,625,712 |
The new study refutes the ‘island rule’ which says that in island environments small mammals such as rodents tend to evolve to be larger, and large mammals such as elephants tend to evolve to be smaller, with the original size of the species being the key determining factor in these changes.
The new research findings s... | <urn:uuid:12882c52-ac29-447d-a986-898d13c74bff> | 3.671875 | 1,100 | Content Listing | Science & Tech. | 36.247697 | 95,625,713 |
|Index to this page|
The period between M and S is called G1; that between S and M is G2.
Their levels in the cell rise and fall with the stages of the cell cycle.
Their levels in the cell remain fairly stable, but each must bind the appropriate cyclin (whose levels fluctuate) in order to be activated.
They add phospha... | <urn:uuid:d834619d-8724-4b55-80b1-7197292c2858> | 3.34375 | 1,136 | Knowledge Article | Science & Tech. | 49.693093 | 95,625,717 |
Knowledge of how the climate has varied in the past is necessary if we are to understand the causes and mechanisms behind today's climate changes and the impact of human activities on them. Using diatoms in sediment from Swedish mountain lakes, Christina Jonsson, Department of Physical Geography and Quaternary Geology ... | <urn:uuid:fd854bef-429a-4991-aa2b-de3d4d914101> | 3.21875 | 931 | Content Listing | Science & Tech. | 33.878304 | 95,625,731 |
The Martian surface is crisscrossed with what looks like the scars of running water cut into its dusty dry surface. For years, researchers have argued over the source of this water, whether it was fed by rainwater falling from the sky or from ice melting beneath the surface. By taking a statistical approach to the feat... | <urn:uuid:abc5988c-8c55-4947-883a-128528d66ac5> | 4.40625 | 575 | News Article | Science & Tech. | 47.559186 | 95,625,760 |
Video: What is Carbon Dating?. Carbon dating,. What is Carbon Dating? - Definition & Overview Related Study Materials. Related.
Dating | The Smithsonian Institution's Human Origins ProgramDATING METHODS IN ARCHAEOLOGY. Specimens of organic material which can yield good amount of carbon can be collected for C-14 dating.... | <urn:uuid:c9bca406-8ca8-454a-8715-b9a74163f78d> | 3.46875 | 1,227 | Content Listing | Science & Tech. | 44.508454 | 95,625,793 |
Authors: Sergio Garcia Chimeno
Demonstration how to do the light velocity c it to be the same independently of the velocity of observer and obtain the mass-energy equivalence E=mc^2 using the Galilean transformations and the 4 dimensions zoom-universe model characteristics. Demonstration how to interpret it the time di... | <urn:uuid:f2d044fd-4679-488c-b511-d03308c51544> | 2.53125 | 297 | Academic Writing | Science & Tech. | 34.880113 | 95,625,823 |
Origins of fallout radionuclides Sediment records of fallout radionuclides Simple dating models Vertical mixing Numerical techniques Radiometric techniques Discussion Summary Acknowledgements References 10. chronostratigraphic techniques in paleolimnology. Svante Bjorck & Barbara Wohlfarth 205 Introduction Methods and ... | <urn:uuid:a225b211-9186-4136-9a90-1736fabe9191> | 2.875 | 504 | Product Page | Science & Tech. | 1.866842 | 95,625,831 |
Two stars each of one solar mass (= 2× 1030 kg) are approaching each other for a head on collision. When they are a distance 109 km, their speeds are negligible. What is the speed with which they collide? The radius of each star is 104 km. Assume the stars to remain undistorted until they collide. (Use the known value ... | <urn:uuid:c9e70889-6a0e-431b-848a-7d8237d3f754> | 3.21875 | 132 | Tutorial | Science & Tech. | 84.639667 | 95,625,851 |
Beginning Java Programming The Object Oriented Approach is a straightforward resource for getting started with one of the world s most enduringly popular programming analysis are often assumed completely independent chosen emphasises component-centred software. An Object-Oriented to Logic and Design, Third Edition prov... | <urn:uuid:1474ece8-f394-46fe-9a3e-16ad6b1aa1e8> | 2.96875 | 611 | Spam / Ads | Software Dev. | 3.2852 | 95,625,857 |
The armored snail is an aquatic snail found only in Piney and Limestone Creeks in Limestone County, Alabama.
Snails are mollusks that have coiled or spiral shells covering their soft bodies, and the shells get bigger toward the opening as they grow.
Some aquatic snails may come to the water surface to get oxygen, which... | <urn:uuid:d314c09b-9123-4317-b947-8837bdd2eb9c> | 3.640625 | 524 | Knowledge Article | Science & Tech. | 49.685591 | 95,625,861 |
Thousands of short RNA molecules with diverse genetic sequences serve as security guards to identify and silence attempts to invade the genome, such as DNA inserted by viruses or parasitic elements known as transposons.
These diverse, small RNA molecules, known as Piwi-interacting RNAs (piRNAs) are produced by various ... | <urn:uuid:e7fdd916-cc84-4631-80b9-21d32f7bfc7c> | 3.40625 | 1,053 | News Article | Science & Tech. | 40.607179 | 95,625,873 |
Testing the influence of gravity on flower symmetry in five Saxifraga species
- 302 Downloads
Flower symmetry is considered a species-specific trait and is categorized in asymmetry, actinomorphic symmetry, bisymmetry and zygomorphic symmetry. Here we report on the intra-individual variation of flower symmetry in the ge... | <urn:uuid:66e64e83-abaf-4c09-b318-c5aeaec45b54> | 2.609375 | 1,052 | Academic Writing | Science & Tech. | 31.03687 | 95,625,879 |
When the following equation is balanced, the coefficients of BaO2 is?
_BaO2-> BaO+ _O2© BrainMass Inc. brainmass.com July 19, 2018, 12:24 am ad1c9bdddf
The key point in balancing equations is that the number of atoms of each element must be the same on either side.
_BaO2-> BaO+ _O2 ...
The equations for balanced coeffi... | <urn:uuid:dcedee46-74b0-4ab6-842c-de23ee387131> | 2.78125 | 98 | Q&A Forum | Science & Tech. | 73.44523 | 95,625,894 |
20 relations: Aitken Double Star Catalogue, Apparent magnitude, Auriga (constellation), Boss General Catalogue, Bright Star Catalogue, Catalog of Components of Double and Multiple Stars, Centre de données astronomiques de Strasbourg, Constellation, Durchmusterung, Epoch (astronomy), Giant star, Henry Draper Catalogue, ... | <urn:uuid:438cff18-ce38-4bb3-86f1-e46cf2bdcf1d> | 2.71875 | 1,031 | Structured Data | Science & Tech. | 30.552432 | 95,625,896 |
- Research article
- Open Access
Global dust Detection Index (GDDI); a new remotely sensed methodology for dust storms detection
© Samadi et al.; licensee BioMed Central Ltd. 2014
Received: 13 February 2013
Accepted: 2 November 2013
Published: 9 January 2014
Dust storm occurs frequently in arid and semi-arid areas of t... | <urn:uuid:81e00b2b-d4a3-4447-8951-0df6172a5131> | 3.234375 | 4,526 | Academic Writing | Science & Tech. | 57.340792 | 95,625,924 |
Was there life on Mars?
They have presented new evidence which they say removes any doubt that a meteorite carried the remnants of ancient Martian bacteria to Earth.
The findings, from the American space agency Nasa, indicate that Mars may once have been teeming with bugs which lived at the bottom of shallow pools and ... | <urn:uuid:8562b812-24e6-4722-ba3b-1d091676eebc> | 3.953125 | 1,224 | News Article | Science & Tech. | 40.827215 | 95,625,935 |
Edited by Jamie (ScienceAid Editor), Taylor (ScienceAid Editor)
Introduction to Hess's Law
Hess's law is based on the first law of thermodynamics which says that energy can not be created or destroyed but can be converted from one form to another. Mr Hess used this principle and related it to chemical reactions, creati... | <urn:uuid:66dc8b77-4cf8-4131-b393-58fd394511c0> | 4.40625 | 534 | Knowledge Article | Science & Tech. | 63.40074 | 95,625,937 |
Botanists at Edge Hill University, the UK’s newest University, have discovered a population Carex salina (Salt-marsh sedge), near Morvich on the west coast of Scotland, in the UK for the first time. Scientists from the University are calling on members of the public to help them search for other populations of this spe... | <urn:uuid:19979c7e-c11f-4400-b5e2-82caa3e45086> | 3.234375 | 1,299 | Content Listing | Science & Tech. | 40.63317 | 95,625,938 |
HTML Horizontal Rule
By Stephen Bucaro
A horizontal rule created by the tag <hr /> creates a horizontal line that can
can be used to break a webpage into sections. A horizontal rule is a block-level element,
which means it has embedded carriage returns before and after, placing it on it's own line.
Shown below is a gen... | <urn:uuid:a1cd56f8-77e4-4070-8103-f8cf36c42370> | 3.6875 | 391 | Tutorial | Software Dev. | 48.255183 | 95,625,950 |
why do tornadoes occur in tornado alley
What is "Tornado Alley"? The land in the central United States is the best breeding ground for the storms which produce tornadoes. The land in the Great Plains is relatively flat, which allows cold dry polar air from Canada to meet warm moist tropical air from the Gulf of Mexico.... | <urn:uuid:fe94a8de-0ce3-463e-b02d-cc786f4eb14c> | 4.0625 | 361 | Content Listing | Science & Tech. | 48.526647 | 95,625,956 |
Images of Asteroid 2012 DA14 taken by the Gingin Observatory in Australia and broadcast on NASA TV show a small white streak moving across the clear night sky.
The asteroid was projected to come within of 27,600 kms of the planet which was close enough to pass inside the ring of satellites that circle the Earth.
The fl... | <urn:uuid:9b2ac8be-35b7-45bf-ba06-e7341fec20f7> | 3 | 514 | News Article | Science & Tech. | 59.841416 | 95,625,970 |
Turbulence and turbidity are thought to independently affect the foraging success of fish, but little is known about their interactive effects on the feeding of fish larger than a few centimetres. We experimentally tested for this interaction on the feeding of planktivorous perch (Perca fluviatilis). There was an inter... | <urn:uuid:fa51e199-8ef2-4801-b1fd-79b80ec90534> | 2.671875 | 266 | Academic Writing | Science & Tech. | 42.128788 | 95,625,982 |
Voltage-gated ion channel
Each of the four homologous domains makes up one subunit of the ion channel. The S4 voltage-sensing segments (marked with + symbols) are shown as charged.
Voltage-gated ion channels are a class of transmembrane proteins that form ion channels that are activated by changes in the electrical mem... | <urn:uuid:e255b194-1592-450d-9ed1-53bd26315614> | 3.671875 | 3,695 | Knowledge Article | Science & Tech. | 58.278841 | 95,626,018 |
Evolution Through Helium Burning — Massive Stars
After central hydrogen burning, the star has a helium core, which in the absence of energy sources tends to become isothermal. Indeed thermal equilibrium would require that the models consist of an isothermal helium core (of mass Mc = qoM, radius Rc), surrounded by a hyd... | <urn:uuid:1cf2d720-1084-4ba6-92f0-c118d446c231> | 2.953125 | 220 | Truncated | Science & Tech. | 64.534444 | 95,626,051 |
Introduction and Definitions
The limits of life on this planet have been the subject of many studies. One of the interesting results of these studies was the phenomenon that water availability and water activity under conditions extremely deviating from the average surface conditions on the Earth are key factors for th... | <urn:uuid:8517a62c-eec2-41c9-bb69-23b9ed298856> | 3.140625 | 160 | Truncated | Science & Tech. | 6.631105 | 95,626,086 |
What is math?
Most people’s conception of math was drilled into them during grade school.
In my experience, grade school math goes something like this: The teacher says that we need to calculate a thing. He then shows how to calculate that thing, with seven slight variations. Your homework is to calculate six of each o... | <urn:uuid:8ec9dd5e-8958-488e-9ae6-b662750da1f4> | 3.046875 | 1,892 | Personal Blog | Science & Tech. | 51.771005 | 95,626,100 |
2 What is Avogadro’s LawAvogadro’s Principle – equal volumes of gases at the same temperature and pressure contain equal numbers of particles
3 Avogadro’s Formula Formula: V1 = V2 n1 n2 This is a direct relationship!So if the amount of gas increases, then the volume will ___________. If the amount of gas decreases, the... | <urn:uuid:a576b3af-e5ee-46d9-af4f-3556922d858e> | 4.21875 | 1,833 | Content Listing | Science & Tech. | 77.883339 | 95,626,102 |
May 11, 2017 07:13 AM EDT
Researchers at the City College of New York (CCNY) has created a photonic hypercrystals - a new material with extraordinary origins and properties people only read in science fiction stories. This strange material used to exist in theory only but has now become a reality.
Photonic hypercrystal... | <urn:uuid:a20dacc4-b853-4cba-998f-e3ca83b23508> | 3.109375 | 462 | News Article | Science & Tech. | 33.498763 | 95,626,120 |
20 July 2018
Rainbows and mini black holes
Published online 12 April 2015
As the Large Hadron Collider is restarted, physicists suggest mini black holes could be on the horizon.
Could mini black holes lie at the end of a rainbow? It sounds fanciful, but physicists have long predicted these exotic entities could be prod... | <urn:uuid:131bc34a-6c65-4361-9d1b-60f42a6a0c16> | 3.453125 | 1,074 | Truncated | Science & Tech. | 56.452501 | 95,626,125 |
Marie Alfred Cornu
Marie Alfred Cornu was born in Orleans France on March 6, 1841 and was educated at the École Polytechnique and the École des Mines. He became employed as a physics professor at the École Polytechnique in 1867, a position he maintained for the rest of his life. Cornu made a wide variety of contributio... | <urn:uuid:95b44a1d-485d-4e4f-b80c-08b6d2de6555> | 3.046875 | 618 | Knowledge Article | Science & Tech. | 41.063282 | 95,626,151 |
Effects of Reduced Oxygen on Embryos and Larvae of the White Sucker, Coho Salmon, Brook Trout, and Walleye
This study was made to determine the effects of continuous-reduced dissolved oxygen concentrations on the development and survival of the white sucker, (Catostomus commersoni (Lacepede)), coho salmon, (Oncorhynchu... | <urn:uuid:3727987f-cbf0-43fd-951e-838bf9a1b4cd> | 3.09375 | 590 | Academic Writing | Science & Tech. | 57.845055 | 95,626,158 |
X-Ray Laser Solves Virus Structure at the Atomic Level
Surface structure of the bovine enterovirus 2, the three virus proteins are colour coded. Credit: Jingshan Ren, University of Oxford
An international team of scientists has for the first time used an X-ray free-electron laser to unravel the structure of an intact v... | <urn:uuid:8445567a-bb36-467f-bb48-5647d4d0845b> | 3.4375 | 1,734 | News Article | Science & Tech. | 35.46238 | 95,626,173 |
Acris gryllus (LeConte, 1825)
Southern Cricket Frog
John B. Jensen1
1. Historical versus Current Distribution. Southern cricket frogs (Acris gryllus) are found primarily below the Fall Line, in both the Atlantic and Gulf coastal plains, from southeastern Virginia south and west to eastern Louisiana, including all of Fl... | <urn:uuid:a280fc51-13d1-4e9b-b506-ebbefe857305> | 3.640625 | 2,467 | Knowledge Article | Science & Tech. | 47.725164 | 95,626,179 |
is a photon a particle?
A photon can be considered to be either a particle or as a fluctuation in an electromagnetic field, field depending on what it it is you want to consider.
There's no easy, accurate answer to that question. You either get an easy answer or an accurate answer, not both.
Yes, you can consider a pho... | <urn:uuid:e5544d4a-ec0b-4ff1-9ab5-868afd3783bc> | 3.046875 | 1,851 | Comment Section | Science & Tech. | 54.516897 | 95,626,199 |
A very cool feature of Python is that it allows for simultaneous assignment. The syntax is as follows:
var_name1, var_name2 = value1, value2
This can be useful as a shortcut for assigning several values at once, like this:
smart_1, cute_1, funny_1, quiet_1 = "John","Paul","Ringo","George"
But simultaneous assignment is... | <urn:uuid:bae57126-d914-4774-8c06-3789d559c995> | 3.21875 | 327 | Tutorial | Software Dev. | 61.954788 | 95,626,210 |
What is Incidence Matrix?
Incidence matrix is that matrix which represents the graph such that with the help of that matrix we can draw a graph. This matrix can be denoted as [AC] As in every matrix, there are also rows and columns in incidence matrix [AC].
The rows of the matrix [AC] represent the number of nodes and ... | <urn:uuid:fe98dd3a-0e58-446c-804f-3370f49d813b> | 3.4375 | 743 | Tutorial | Science & Tech. | 58.00997 | 95,626,224 |
When two mathematicians raised pointed questions about a classic proof that no one really understood, they ignited a years-long debate about how much could be trusted in a new kind of geometry.
The ancient Greeks argued that the best life was filled with beauty, truth, justice, play and love. The mathematician Francis ... | <urn:uuid:fdd5e529-c087-4b01-b16c-6eda344effea> | 3.109375 | 284 | Content Listing | Science & Tech. | 45.4375 | 95,626,227 |
An Ultimate Guide to Android App Development with Java If you are new to Android App Development, this is where you should start. Here is a comprehensive guide that gives you a bird-eye view to develop custom Android app development with Java. The Android app framework works around the Java programming language and spe... | <urn:uuid:b6f4bef5-5219-4861-b88b-aac3142c6bca> | 2.6875 | 1,505 | Documentation | Software Dev. | 54.857266 | 95,626,239 |
Thursday, March 8, 2012
A transfer RNA (tRNA) is a small RNA (ribonucleic acid) molecule, about 80 nucleotides long that acts as a carrier of specific amino acids during protein synthesis. A molecule of transfer RNA, which is specific for a particular amino acid, binds to that amino acid. The sequence of three nucleoti... | <urn:uuid:6547b70d-2c52-4883-8218-4acad899e7c8> | 3.8125 | 163 | Personal Blog | Science & Tech. | 35.835 | 95,626,277 |
The Interactions of Food, Prey, and Predators in Outbreaks
Jensen and Ball (1970) experimented with about as simple an interaction between an organism, its food, and its predator, as it is possible to get — populations of bacteria and their protozoan predators maintained in culture flasks of water. They obtained the or... | <urn:uuid:5d7a53e6-b3e2-496f-9f90-2f660b729196> | 3.609375 | 281 | Truncated | Science & Tech. | 33.294187 | 95,626,287 |
Hardly a natural history documentary goes by without some mention of leafcutter ants. So overexposed are these critters that I strongly suspect they’re holding David Attenborough’s relatives to ransom somewhere. But there is good reason for their fame – these charismatic insects are incredibly successful because of the... | <urn:uuid:6045a063-bc87-4ed3-88d6-7120fdcd3289> | 3.296875 | 1,108 | News Article | Science & Tech. | 38.839012 | 95,626,306 |
Seismic Image of the Volcanic Tremor Source at Izu-Oshima Volcano, Japan
The 1986 fissure eruption of Izu-Oshima volcano was followed by a strong activity of volcanic tremor. To investigate the characteristics of the activity and its relation to the magma system beneath the volcano, two seismological surveys were carri... | <urn:uuid:64dc0782-0100-4cd1-bcbb-6bf94e5c4af1> | 2.6875 | 797 | Academic Writing | Science & Tech. | 47.651259 | 95,626,339 |
seen = set()
for n in numbers:
if n in seen:
return False #if no duplicate found
Instead of returning False, you can also raise an exception. Use this:
raise Exception('custom exception message here')
Monday, December 11, 2017
Finding Repeats in an Array or a List - Technical Interview in Python Patterns
Practice using... | <urn:uuid:4b64fa84-52df-438d-93da-4ec6729fcca0> | 2.890625 | 203 | Content Listing | Software Dev. | 68.63339 | 95,626,345 |
Neutron radiography is a well-known imaging technique among those working at nuclear research facilities. However, the move from laboratory to industry has been hampered by the generally large neutron flux requirements and by the relatively small number of nuclear research reactors. The development of imaging technique... | <urn:uuid:53186834-402d-4519-9c07-f482810da3ae> | 2.65625 | 157 | Knowledge Article | Science & Tech. | 40.773 | 95,626,373 |
The ionization front known as the "Bright Bar" is the strikingly straight edge running from the northeast to the southwest border of the Huygens region.
This cool observation technique also helps convince me the orangepink color is real, because I saw color along the outer edge of the Bright Bar ionization front and in... | <urn:uuid:964ebc43-fb9c-4a18-8ae2-1fb7ebb21b44> | 3.296875 | 399 | Knowledge Article | Science & Tech. | 32.335669 | 95,626,376 |
746 pages , 1997 Located between the Pacific and Indian Oceans, and between the Asian and Australian continents, the seas of the Indonesian Archipelago have a significant role in global weather patterns and oceanic circulation. The dynamic interplay between geological, physical, chemical, and biological processes, past... | <urn:uuid:32ce8ee4-32da-43c9-8fff-01db43de6b88> | 2.59375 | 582 | Content Listing | Science & Tech. | 25.568178 | 95,626,378 |
Linux bash provides a lot of mechanisms to make system administrators life easier. These features are similar to the programming language features like variables, decisions, loops etc. In this tutorial we will look loops which can be implemented with for and while we have already examined for loops in the following tut... | <urn:uuid:5b68c712-1a7d-4192-8919-dfecd2bb9864> | 3.78125 | 363 | Content Listing | Software Dev. | 57.150366 | 95,626,402 |
Volcanoes are mountains whose tops are opened downward. These openings reach below the surface of the earth – where the rock is molten. Volcanoes are mostly closed like a soda bottle, but below which the pressure continues to grow over time. When the pressure reaches a certain level the hot lava suddenly came out. Anyb... | <urn:uuid:c2a432c1-d784-40c2-97ca-8d567191571c> | 4.1875 | 6,062 | Knowledge Article | Science & Tech. | 57.223607 | 95,626,411 |
Weather extremes in the summer - such as the record heat wave in the United States that hit corn farmers and worsened wildfires in 2012 - have reached an exceptional number in the last ten years.
Man-made global warming can explain a gradual increase in periods of severe heat, but the observed change in the magnitude a... | <urn:uuid:d1886f05-05a9-4e51-aba7-bad7f01db95e> | 3.796875 | 1,542 | Content Listing | Science & Tech. | 44.404413 | 95,626,449 |