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STEPHEN HAWKING: How to build a time machine

STEPHEN HAWKING: How to build a time machine
By STEPHEN HAWKING Created: 18:47 GMT, 27 April 2010 All you need is a wormhole, the Large Hadron Collider or a rocket that goes really, really fast 'Through the wormhole, the scientist can see himself as he was one minute ago. Hello. Time travel was once considered scientific heresy. To see how this might be possible, we need to look at time as physicists do - at the fourth dimension. But there is another kind of length, a length in time. To see what that means, let's imagine we're doing a bit of normal, everyday car travel. Let's indulge in a little science fiction for a moment. Physicists have been thinking about tunnels in time too, but we come at it from a different angle. Enlarge A wormhole is a theoretical 'tunnel' or shortcut, predicted by Einstein's theory of relativity, that links two places in space-time - visualised above as the contours of a 3-D map, where negative energy pulls space and time into the mouth of a tunnel, emerging in another universe. Nothing is flat or solid.

Super Mario Crossover Cell Size and Scale Some cells are visible to the unaided eye The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an ameoba proteus, a human egg, and a paramecium without using magnification. Smaller cells are easily visible under a light microscope. To see anything smaller than 500 nm, you will need an electron microscope. Adenine The label on the nucleotide is not quite accurate. How can an X chromosome be nearly as big as the head of the sperm cell? No, this isn't a mistake. The X chromosome is shown here in a condensed state, as it would appear in a cell that's going through mitosis. A chromosome is made up of genetic material (one long piece of DNA) wrapped around structural support proteins (histones). Carbon The size of the carbon atom is based on its van der Waals radius.

Opinion: The 99 Best Free Games Of 2009 [Gamasutra is teaming up with game criticism weblog Critical Distance to present Christopher Hyde's round-up of the wealth of excellent games being produced outside the realm of 'AAA' titles in 2009, compiling his take on the best 99 free to download video games released this year.] This past year will go down for me personally as the year in which my spending on video games plummeted, due to personal dissatisfaction with the costs in money and time demanded by most of the AAA products out there on the shelves. To that end, I’ve since turned my eyes towards the burgeoning free games scene and to be honest what I’ve found is pretty darned spectacular. Now sure, you do need a computer as a platform, and might also sometimes have to suffer through some ads to get to the games. But otherwise, the sheer number and quality of the games available for nothing is a simple testament to just how broad and active the development community outside the corporate AAA space really is at present. 1. 2.

people.htm from lhup.edu Perpetual Futility A short history of the search for perpetual motion. by Donald E. Simanek Popular histories too often present perpetual motion machines as "freaks and curiosities" of engineering without telling us just how they were understood at the time. They also fail to inform us that even in the earliest history of science and engineering, many persons were able to see the futility and folly of attempts to achieve perpetual motion. Sometimes a particular device comes to us with a label, such as "Bishop Wilkins' magnetic perpetual motion machine." Popular articles leave the impression that the inventor believed it was a perpetual motion machine. Bhaskara's Wheels. Villard de Honnecourt was born in the late 12th century and probably lived and worked in the north of France from 1225 to 1250. The most celebrated of his machine designs was for a perpetual motion wheel. Villard's diagram shows seven hammers, and he insisted on an odd (uneven) number of hammers, explaining 56. That's it.

Indie Game: The Movie This Blog Linked From Here Interviews / Press Tuesday, May 18, 2010 Indie Game: The Movie Indie Game: The Movie - Growing Up Edmund from IndieGame: The Movie on Vimeo. Help support this awesome indie team. Posted by Edmund at 2:08 PM 5 comments: abstractcloud said... Waiting for the movie and other people to appear in the movie. June 1, 2010 at 7:54 PM Danielleorama said... *Mwa mwa mwa smooooch* June 2, 2010 at 2:01 AM 梦敏 said... Microsoft Office 2010Office 2010Microsoft Office 2007Office 2007Microsoft OfficeOffice 2007 keyOffice 2007 downloadOffice 2007 ProfessionalMicrosoft outlookMicrosoft outlook 2010 November 2, 2010 at 2:49 AM Generic Viagra said... Nice post, I would like to request you to one more post about that Keep it up March 8, 2011 at 2:06 AM www.josemoretsa.es said... Thanks so much for this post, quite effective info. October 12, 2011 at 1:17 AM Post a Comment Newer PostOlder PostHome

The Elegant Universe: Pt 1 The Elegant Universe: Part 3 PBS Airdate: November 4, 2003 NARRATOR: Now, on NOVA, take a thrill ride into a world stranger than science fiction, where you play the game by breaking some rules, where a new view of the universe pushes you beyond the limits of your wildest imagination. This is the world of "string theory," a way of describing every force and all matter from an atom to earth, to the end of the galaxies—from the birth of time to its final tick, in a single theory, a "Theory of Everything." Our guide to this brave new world is Brian Greene, the bestselling author and physicist. BRIAN GREENE (Columbia University): And no matter how many times I come here, I never seem to get used to it. NARRATOR: Can he help us solve the greatest puzzle of modern physics—that our understanding of the universe is based on two sets of laws that don't agree? NARRATOR: Resolving that contradiction eluded even Einstein, who made it his final quest. S. BRIAN GREENE:The atmosphere was electric. S. S.

Aether Description Venture into space! Exploring distant planets and solving their puzzles to change the way the world views you, become a hero! Each planet has a puzzle to solve, when you figure out what it is and solve it the planet will regain color and the screen will flash. Aether is an "Art Game" about personal childhood feelings and experiences. If the game is running slow for you, there is a link on the title screen to a standalone PC/Mac version that will run a lot faster on slower computers. Edmund McMillen = Design/ArtTyler Glaiel = Programing/Design/Music Visit www.glaielgames.com for other games by Glaiel! Controls Controls: ASDW = Move and jump.

Scientific Curiosity Captured in Photos Caleb Charland is a Maine-based photographer who combines a love of scientific experiments and photographs into wonderful and amazing photographs. If Isaac Newton or Benjamin Franklin were into photography, their photographs might look something like these: “Wooden Box with Horseshoe Magnet” “Atomic Model” “Demonstration with Hair Dryer and Aluminum Foil” “Candle in a Vortex of Water” “Fifteen Hours” Regarding his work, Charland tells us, Wonder is a state of mind somewhere between knowledge and uncertainty. To check out more of his work, you can visit his website. Image credits: Photographs by Caleb Charland and used with permission.

Heavy Boots - StumbleUpon Editorial note: I received this as an email from a friend who got it from a friend who ... I do not know who the original author is, but I do believe this to be true. Who could possibly make it up? Heavy Boots About 6-7 years ago, I was in a philosophy class at the University of Wisconsin, Madison (good science/engineering school) and the teaching assistant was explaining Descartes. He was trying to show how things don't always happen the way we think they will and explained that, while a pen always falls when you drop it on Earth, it would just float away if you let go of it on the Moon. "No it wouldn't." the TA explained calmly, "because you're too far away from the Earth's gravity." I countered, "why didn't they float away?" "Because they were wearing heavy boots." he responded, as if this made perfect sense (remember, this is a Philosophy TA who's had plenty of logic classes). As we left the room, my friend Mark was raging. 1. About 47 percent got this question correct. 2. 13.

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