Cool Things
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Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2012 March 12 The Scale of the Universe - Interactive Flash Animation Credit & Copyright: Cary & Michael Huang
2012 March 12 - The Scale of the Universe Interactive
Introduction
The purpose of this page is to provide a general overview of the Bitcoin system and economy. Basic Concepts Currency Alice wants to buy the Alpaca socks which Bob has for sale. In return, she must provide something of equal value to Bob. The most efficient way to do this is by using a medium of exchange that Bob accepts which would be classified as currency.New Scientist TV: How the universe appeared from nothing
MacGregor Campbell, consultant There's no such thing as a free lunch, or so the saying goes, but that may not be true on the grandest, cosmic scale. Many physicists now believe that the universe arose out of nothingness during the Big Bang which means that nothing must have somehow turned into something.
Math Isn't Just Computation. So Why Is That All We Teach? - Education
A reader named Monika Hardy recently noticed that I harp a lot on the importance of math when blogging about education. ( Guilty as charged .)
Kogeto Dot brings bite-size panoramic video recording to iPhone 4 (hands-on)
We've seen panorama add-ons for the iPhone before , but Kogeto's offering is quite a bit more pocketable than other crowd-funded solutions. The Kogeto Dot snaps onto an iPhone 4 in your choice of pastel colors, and catches 360-degree video when placed face down. It's got an accompanying iOS app that will un-distort the video for sharing, or even broadcast it on the net in real time. We got to check out a prototype, and though there's still some residual distortion at this point in time, we're assured that it'll all get straightened out if and when the project meets its funding goal. Interestingly (and annoyingly), this implementation requires your iPhone be held perpendicular rather than upright, making previewing a capture virtually impossible until after you've stopped the recording, which seems unnatural to us.