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100 Websites You Should Know and Use. Cities Mobility in its many forms: Inspiring words from the TEDCity2.0 Salon By Kate Torgovnick May and Thu-Huong Ha In the past 30 years, 300 million people in China have left rural areas and moved to cities.

100 Websites You Should Know and Use

Browse like Bond: Use any computer without leaving a trace with Tails. If James Bond logs on to a computer, he doesn't want to leave a bunch of files, cookies, or his IP address out there for someone to find.

Browse like Bond: Use any computer without leaving a trace with Tails

It might seem extreme, but sometimes it's a good idea to take the same precautions yourself. In this post, we'll walk through how to use a USB stick or DVD to anonymize, encrypt and hide everything you do on a computer no matter where you are. When we say "browse without leaving a trace", we truly mean it. Using the Linux-based, live-boot operating system Tails (The Amnesiac Incognito Live System), you can use any computer anywhere without anyone knowing you were ever on it.

The Best Science Fiction Books (According to Reddit) Recently, someone asked Reddit for a list of the best science fiction books of all time.

The Best Science Fiction Books (According to Reddit)

Being a fan of sci-fi, and wanting to expand my own reading list, I thought it would be helpful to tally the results and preserve them here for future reference. I've also included selected quotes from the comments, as well as my own notes on the books I've already read. How Mathematics Can Make Smart People Dumb - Ben O'Neill.

Mathematics can sometimes make smart people dumb.

How Mathematics Can Make Smart People Dumb - Ben O'Neill

Let me explain what I mean by this. I don't mean that it is dumb not to be good at mathematics. 5 Psychological Experiments That Prove Humanity is Doomed. Cracked.com's new book is now on sale.

5 Psychological Experiments That Prove Humanity is Doomed

What follows is one of 22 classic articles that appear in the book, along with 18 new articles that you can't read anywhere else. Psychologists know you have to be careful when you go poking around the human mind because you're never sure what you'll find there. A number of psychological experiments over the years have yielded terrifying conclusions about the subjects. Oh, we're not talking about the occasional psychopath who turns up. No, we're talking about you. Privacy monitor hacked from an old LCD Monitor. Finally you can do something with that old LCD monitor you have in the garage.

Privacy monitor hacked from an old LCD Monitor

You can turn it into a privacy monitor! It looks all white to everybody except you, because you are wearing "magic" glasses! All you really have tohave is a pair of old glasses, x-acto knife or a box cutter and some solvent (paint thinner) Here is what I used: an LCD monitor of course single use 3D glasses from the movie theater (old sunglasses are just fine) paint thinner (or some other solvent such as toluene, turpentine, acetone, methyl acetate, ethyl acetate etc) box cutter (and CNC laser cutter :) but that you don't really need, I'm sure x-acto knife and a steady hand would do just fine) screwdriver or a drill paper towels superglue.

11 cheap gifts guaranteed to impress science geeks. Science comes up with a lot of awesome stuff, and you don't need a Ph.D, a secret lab, or government funding to get your hands on some of the coolest discoveries.

11 cheap gifts guaranteed to impress science geeks

We've got a list of 11 mostly affordable gifts that are guaranteed to blow your mind, whether or not you're a science geek. Click on any image to see it enlarged. 1. Books that will induce a mindfuck. Crystals May Be Possible In Time As Well As Space. What sounds like the title of a bad fantasy movie — time crystals — could be the next big thing in theoretical physics.

Crystals May Be Possible In Time As Well As Space

In two new papers, Nobel Prize–winning physicist Frank Wilczek lays out the mathematics of how an object moving in its lowest energy state could experience a sort of structure in time. Such a “time crystal” would be the temporal equivalent of an everyday crystal, in which atoms occupy positions that repeat periodically in space. The work, done partly with physicist Alfred Shapere of the University of Kentucky, appeared February 12 on arXiv.org. “We don’t know whether such things do exist in nature, but the surprise is that they can exist,” says Maulik Parikh, a physicist at Arizona State University in Tempe. 40 Belief-Shaking Remarks From a Ruthless Nonconformist. If there’s one thing Friedrich Nietzsche did well, it’s obliterate feel-good beliefs people have about themselves. He has been criticized for being a misanthrope, a subvert, a cynic and a pessimist, but I think these assessments are off the mark.

I believe he only wanted human beings to be more honest with themselves. One promising puzzle piece for confirming dark matter now seems unlikely fit. Like jazz musicians who make up a melody as they go along, scientists often improvise even after an experiment is underway.

One promising puzzle piece for confirming dark matter now seems unlikely fit

One recent example of this comes from the Fermi Gamma-ray Space Telescope. Launched by NASA in June 2008, the $690 million telescope has since been working as advertised, providing scientists with the most complete look yet at gamma rays, the highest energy forms of light. But just two months after the launch, a tantalizing finding from a European experiment hinting at evidence of dark matter had Stefan Funk and Justin Vandenbroucke wondering if the telescope could be used to look at something for which it wasn’t intended -- specifically, electrons and their antimatter twins, positrons, that are streaming across the universe in cosmic rays. Scirus - for scientific information. Optical Computer Made From Frozen Light.

Scientists at Harvard University have shown how ultra-cold atoms can be used to freeze and control light to form the "core" – or central processing unit – of an optical computer. Optical computers would transport information ten times faster than traditional electronic devices, smashing the intrinsic speed limit of silicon technology. This new research could be a major breakthrough in the quest to create super-fast computers that use light instead of electrons to process information. Professor Lene Hau is one of the world's foremost authorities on "slow light". Her research group became famous for slowing down light, which normally travels at 186,000 miles per second, to less than the speed of a bicycle. Using the same apparatus, which contains a cloud of ultra-cold sodium atoms, they have even managed to freeze light altogether. The meaning of itches and their omens. Image via Wikipedia Itching is sometimes thought of as one of the manifestations of the human body connected with omens and fortune.

The meaning of itches and their omens

An itchy crown of the head You will have an advance in position. An itchy right cheek. World's Top Scientists Ponder: What If The Whole Universe Is, Like, One Huge Atom? PALO ALTO, CA—Gathering for what members of the international science community are calling "potentially the most totally out-to-lunch freaky head trip since Einstein postulated that space and time were, like, curved and shit," a consortium of the world's top physicists descended upon Stanford University Monday to discuss some of the difficult questions facing the cutting edge of theoretical thinking. Cal Tech physicist Dr. Jonathan Friedrich postulates a bunch of freaky shit that makes his colleagues' heads spin right the hell off. Among the revolutionary ideas expected to be raised at the historic week-long summit is the possibility that, like, our whole friggin' universe might be just one big atom in, say, some super-duper huge thing out there somewhere, or something.

"Whoa, man," Dr. Jacob "The Boz" Bozeman of MIT told reporters. ► Cold Water by Damien Rice. Adding hydrogen triples transistor performance in graphene. A technique that uses hydrogen to improve transistor performance on real-world graphene devices has been demonstrated on the wafer-scale by researchers in Penn State's Electro-Optics Center (EOC). In a paper published in the August 1, 2011, online edition of Nano Letters, the researchers demonstrated a 3x improvement in electron mobility of epitaxial graphene grown on the silicon face of a 100 mm silicon carbide wafer, as well as a similar improvement in radio-frequency transistor performance.

"There are two faces to a silicon carbide wafer," explains EOC materials scientist Joshua Robinson. "Graphene grown on the carbon face usually has higher electron mobility, but that's because beneath the graphene layer grown on the silicon face there is a carbon-rich buffer layer bound to the silicon carbide that acts to scatter electrons, thus reducing their mobility.