An elementary particle that circles the nucleus of an atom. Electrons are considered to be negatively charged. See wave-particle duality and photon.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- Force-on-Nuclei (zip)
- Force-on-Nuclei FN attempts to calculate the force acting on a nucleus in a molecule, using electron-density specifying 'cube' file for the given molecule. As per the Hellmann-Feynman electrostatic theorem, this force is simply the resultant of the coulombic force of attraction by the smeared-out electron cloud and of repulsion by...
- Software downloads 2008-08-12
- Green light for hacker's extradition
- Green light for hacker's extraditionUS owned server spaceWhen he hacked into our military's network's, he was trespassing on US owned server space.The EU would cry bloody murder if we had a little pasty 16 yr old hack MI6 and do what this guy did, and we didn't extradite him. book...
- Discussion threads 2008-07-30
- A microscope measuring picometers
- A few months ago, I've written about the most powerful microscope in the world which was able to display images at an incredible high-resolution of just 0.05 nanometer (or 50 picometers). It seems that German scientists also have pushed electron microscopy to the picometer scale and broke the record for...
- Blog posts 2008-07-28
- Looking at single atoms of hydrogen
- As you probably know, graphene is a one-atom-thick sheet of carbon atoms packed in a dense two-dimensional honeycomb lattice. And it recently became very popular recently as a basis for ultra-fast transistors. Now, according to Science News, U.S. researchers are using graphene to image individual hydrogen atoms via a standard...
- Blog posts 2008-07-19
- China: A potential, new antitrust battleground for Microsoft
- China: A potential, new antitrust battleground for MicrosoftI wonder how much marketshare MS would loseI wonder how much Chinese marketshare MS would lose if they pulled out of China? If leaving China leads to the loss of [url=http://www.newlaunches.com/archives/only_244_copies_of_genuine_windows_vista_sold_in_china.php] 244 sales[/url], maybe China would actually be doing MS a favor! :)They...
- Discussion threads 2008-06-18
- Nanoscale microscope on a chip
- New Scientist recently reported that a UK company is developing a microscope on a chip four times more powerful than the best scanning electron microscopes SEMs available today. The best SEMs have a resolution of 0.05 nanometer. This new one, which will be small enough to fit onto a fingertip,...
- Blog posts 2008-06-16
- Can we trust our GPS devices?
- In recent years, we have become increasingly dependent on applications using the Global Positioning System GPS, such as railway control, highway traffic management, emergency response or commercial aviation. But in a very short news release, the American Geophysical Union AGU warns us that we can't always trust our GPS gadgets...
- Blog posts 2008-06-10
- FemtoScan Online (zip)
- FemtoScan Online is a powerful software for analysis of different kinds of microscopic images. Mainly oriented for the scanning probe microscopy 3D images processing and analysis, but can be also used for optical and electron microscopy images. Impressing 3D representation with ability to record movies, clipboard integration, USB cameras support,...
- Software downloads 2008-06-06
- The search engine conundrum
- I was looking through the Channel 8 Students Union earlier on and noticed an important point concerning search engines. It's widely known that search engines are the most viewed websites on the Internet because they are the starting point to look for something. We may even know the direct link...
- Blog posts 2008-06-05
- Nanoparticles used to trap oil drops
- Rice University researchers have found a new way to spontaneously assemble nanoparticles into bag-like sacs. Their 'nanobatons' could be used to clean up oil spills by trapping oil droplets in polluted waters. These nanoparticles could even be more useful for delivering drugs. The researchers found that 'ultraviolet light and magnetic...
- Blog posts 2008-05-31
- BU astronomer sings about black holes, does cutting edge research
- REALITY ABUSE (Words & Music by A. Marscher ©2003) 1. We search for a description of reality that fits our macroscopic mentality Strip the world down to its finest scales, but that where normal logic fails Electrons with no individuality, photons with wave-particle duality ...
- Blog posts 2008-05-21
- Growing nano pine trees in Wisconsin
- University of Wisconsin-Madison chemists have accidentally created nano pine trees with trunks and branches. As said the lead researcher, 'At the beginning we saw just a couple of trees, and we said, 'What the heck is going on here?' They were so curious.' In fact, this could lead to an...
- Blog posts 2008-05-02
- Explaining science with drawings
- A recent news release from the US National Science Foundation NSF mentions a project it helped to fund, 'Picturing to Learn.' For this project, college students have to create pencil drawings to explain scientific concepts to high school students. As says Felice Frankel, a Harvard University researcher who is leading...
- Blog posts 2008-04-12
- Both sides will revel in this data ice s melting, but we ve been there before
- Both sides will revel in this data ice s melting, but we ve been there beforeHow about soemthing measureable?"How high will sea levels have to be before America will do something?"How about something measurable with something besides an electron microscope?before "America will do something"So you are proposing that we...
- Discussion threads 2008-03-06
- 3-D images of a virus at half-nanometer resolution
- U.S. researchers have used a new technique named cryo-EM (short for 'Electron cryomicroscopy) to capture images of a virus at a resolution of 4.5 angstroms -- less than half of a nanometer. As said the lead researcher, 'This is the highest resolution ever achieved for a living organism of this...
- Blog posts 2008-03-06
- Electricity generated by bacteria?
- It will take years before bacteria can generate enough energy to generate electricity for transportation, homes or businesses, but researchers at the University of Minnesota studying bacteria have found a way to convert waste into electricity. They've discovered that riboflavin (also known as vitamin B-2) is responsible for much of...
- Blog posts 2008-03-04
- Taking images of individual atoms in color
- Researchers at Cornell University are using a new kind of scanning transmission electron microscope STEM to take pictures of individual atoms in color for the first time. It seems odd, but 'the current generation of electron microscopes can be thought of as expensive black and white cameras where different atoms...
- Blog posts 2008-02-22
- Nanotechnology-based self-cleaning fabrics
- A recent American Chemical Society's Weekly PressPac briefly describes how Australian researchers have used nanotechnology to develop 'self-cleaning' wool and silk fabrics (scroll to article #4 in the PressPac). The researchers 'prepared wool fabrics with and without a nanoparticle coating composed of anatase titanium dioxide, a substance that is known...
- Blog posts 2008-02-12
- 100 GB memory chip coming in 2009
- Bytes, not bits. Oh, and it's fast, too. Nanochip, a Silicon Valley-based fabless semiconductor firm, just received $14 million in funding to complete work on a 100 GB storage chip. Intel Capital, who should know something about chips, is an investor. The goal: ". . . allow Nanochip to...
- Blog posts 2008-01-22
- A Nano Bowl trophy for the Super Bowl
- In November 2007, the American Physical Society APS launched the Nano Bowl video contest. You have to make a video that demonstrates some aspect of physics in [American] football and send them your movie. The winner will receive the smallest trophy ever made and $1,000 in cash. This 'nanotrophy' has...
- Blog posts 2008-01-18
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