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157 of the Most Useful Websites on the Internet
I have compiled a list of the most useful websites, across a wide variety of topics.. that you may find helpful,
This is some pretty exciting news. It seems that researchers at the Massachusetts Institute of Technology (MIT), one of the most prestigious science and engineering schools in the United States, has created a new energy source -- and it's clean and renewable. The odd thing is that the only way you can see this energy source is with a very powerful microscope, because it is created by using nanotechnology. For a few years now, we have been hearing about the possibilities offered by the new field of nanotechnology. Now it looks like the first usable breakthrough has been accomplished.
MIT Creates New Energy Source
Sweden rolls out invisible infrared tank
Engineers in Sweden have announced the development of a prototype tank which is covered in "pixels" that enable it to disappear from thermal images – or to disguise itself as something else. The "Adaptiv" system, funded by the Swedish Defence Materiel Administration (FMV), covers the test vehicle in hexagonal panels whose temperature can be quickly adjusted. The vehicle's own thermal cameras scan the background against which the tank is seen from each aspect, and the system can then adjust the pixels to match, making it very hard to see using thermal imaging systems. Alternatively, the pixels can be manipulated to present the appearance of something other than a tank – for instance a car or truck. How future visible-light versions of the stealth tank might look in action.
Molecular memory a game-changer
A team at Rice University has determined that a strip of graphite only 10 atoms thick can serve as the basic element in a new type of memory, making massive amounts of storage available for computers, handheld media players, cell phones and cameras. In new research available online in Nature Materials , Rice professor James Tour and postdoctoral researchers Yubao Li and Alexander Sinitskii describe a solid-state device that takes advantage of the conducting properties of graphene. Tour said such a device would have many advantages over today's state-of-the-art flash memory and other new technologies.Video: New Atomic Clock Reaches A 100 Quadrillionth Of A Second Accuracy
A team of researchers at the University of Tokyo has developed a new type of optical atomic clock that boasts a 100 quadrillionth of a second accuracy (one quadrillion has 15 zeros). The optical lattice clock is the brain child of Professor Katori who says his device observes a million atoms simultaneously whereas conventional atomic clocks measure time by using single atoms. The Professor explains: “(…) if one clock is placed one centimeter higher than another clock, the higher clock is affected by less gravity, so it goes faster. That difference could be read out in the 18th decimal place of the clocks in one second averaging time. Until now, clocks have been thought of as tools for sharing a common time.
Building Computer Chips From Collapsing Nanopillars - News - Institute of Nanotechnology
The manufacture of nanoscale devices — the transistors in computer chips, the optics in communications chips, the mechanical systems in biosensors and in microfluidic and micromirror chips — still depends overwhelmingly on a technique known as photolithography. But ultimately, the size of the devices that photolithography can produce is limited by the very wavelength of light. As nanodevices get smaller, they’ll demand new fabrication methods. In a pair of recent papers, researchers at MIT’s Research Laboratory of Electronics and Singapore’s Engineering Agency for Science, Technology and Research (A*STAR) have demonstrated a new technique that could produce chip features only 10 nanometers — or about 30 atoms — across. The researchers use existing methods to deposit narrow pillars of plastic on a chip’s surface; then they cause the pillars to collapse in predetermined directions, covering the chip with intricate patterns.
The smallest electrical motor on the planet, at least according to Guinness World Records, is 200 nanometers. Granted, that’s a pretty small motor—after all, a single strand of human hair is 60,000 nanometers wide—but that tiny mark is about to be shattered in a big way. A Tufts research team has developed the world’s first single-molecule electric motor—which is a mere 1 nanometer across. They reported the results in a paper published in Nature Nanotechnology on Sept. 4. This development—made possible with a low-temperature scanning tunneling microscope at Tufts, one of only about 100 in the United States—may be the first step toward a new class of devices that could be used in applications ranging from medicine to engineering.
World's Smallest Electric Motor - News - Institute of Nanotechnology
70 Things Every Computer Geek Should Know. | Arrow Webzine
The term ‘geek’, once used to label a circus freak, has morphed in meaning over the years. What was once an unusual profession transferred into a word indicating social awkwardness. As time has gone on, the word has yet again morphed to indicate a new type of individual: someone who is obsessive over one (or more) particular subjects, whether it be science, photography, electronics, computers, media, or any other field. A geek is one who isn’t satisfied knowing only the surface facts, but instead has a visceral desire to learn everything possible about a particular subject.
Self replication
The best survey of self-replication written to date is Kinematic Self-Replicating Machines , a book co-authored by Robert A. Freitas Jr. and Ralph C. Merkle , which describes all proposed and experimentally realized self-replicating systems that were publicly known as of 2004 ranging from nanoscale to macroscale systems, and presents for the first time a detailed 137-dimensional map of the entire kinematic replicator design space to assist future engineering efforts. A crucial objective of nanotechnology is to make products inexpensively . While the ability to make a few very small, very precise molecular machines very expensively would clearly be a major scientific achievement, it would not fundamentally change how we make most products. If we are to use positional assembly of molecular parts to efficiently build large structures (kilograms or more) then we will have to use some form of massive parallelism.Stuxnet: Anatomy of a Computer Virus (Infographic Video) | eTechMag.com - Emerging Technology Magazine
Stuxnet is a weapon made entirely out of code. This cool inforgraphic explains this virus that has changed the anatomy of viruses. Following is the video which was produced by Australian TV program HungryBeast on Australia’s ABC1. According to Wikipedia:
Like this story? Get the latest data center news by e-mail or RSS , or follow us on Twitter or Facebook . The twice-a-year list of the Top 500 supercomputers documents the most powerful systems on the planet. Many of these supercomputers are striking not just for their processing power, but for their design and appearance as well. Here’s a look at the top finishers in the latest Top 500 list, which was released Monday, June 20, 2011 at the ISC 11 conference in Germany. K SUPERCOMPUTER, RIKEN Advanced Institute for Computational Science (AICS), Japan The “K” supercomputer , a joint project by Fujitsu and the RIKEN center, has overtaken China’s Tianhe-1A system to gain the top spot on the updated list.
The Top 10 Supercomputers, Illustrated (June 2011) « Data Center Knowledge
The business of implanting a glass encased tag is far from an exact science, but the most reliable location is the "TFIS". It gives adequate cushioning for most people and maximizes utility of the very short read range tags. Because these tags do not have an anti-migration coating, it's a good idea to implant only just under the dermis so the elasticity of the skin holds the tag in place. If you implant deeper, those tissues don't do a good job of holding the glass implant in place and it can/will move around on you.
EM4102 - 13mm Implantation - RFID Toys - Page 2
Here’s a list of 9 ways you can modify your body to be even more useful, from bionic implants to portable power generators. 1. RFID Chips – A nice and easy way to start out with body hacking is to implant an RFID chip into you.