Momentum, Magnets, Metal Balls… and Perpetual Motion [Video]
…and this is why a perpetual motion machine will probably never exist, especially if it involves magnets. [Sixty Symbols]
Category Archives: Science
Question: How Big is a Billion? [Video]
So geeks, how big is a billion? The answer, which varies depending on where you live or how old you are, is not as simple as most people think! We discuss millions, billions, trillions and centillions is this film about the long and short scales. We also touch on quadrillions, sextillions, milliards, billiards and the […]
Pluto: Planet? Or Not? [Video]
Yep, believe it or not, the debate over Pluto’s planetary state is still going on… [CGPGrey]
NASA Suggests Guidelines to Protect Moon Landmarks
Despite the National Aeronautics and Space Administration no longer doing any space stuff, they sure got territorial when private companies started making strides for space travel. The inevitable exploration of the moon’s surface is a hot topic among the private space travel initiatives, and NASA is calling “dibs” on certain areas of the moon. NASA […]
World’s Largest Telescope to Straddle Two Continents
Three countries have agreed to work together to build the largest radio telescope ever made. South Africa, Australia and New Zealand have decided to pool their resources after making separate bids to run the Square Kilometre Array project. The name comes from the aim of producing a total collecting area of one million square meters. […]
A Spacesuit Ballet: NASA Spacesuit Tests [Video]
Of the suit he wore on the moon, Neil Armstrong wrote, “it was tough, reliable, and almost cuddly.” But that cuddly suit, made by the company Playtex, had some stiff competition (literally) from rival rigid, metal designs. This video features archival NASA footage of mobility tests for several spacesuit prototypes. Music is from the band […]
A Microalgae Lamp that Absorbs CO2!
Shamengo pioneer Pierre Calleja has invented something truly remarkable–a light powered by algae that absorbs CO2 in the air–at the rate of 1 ton PER YEAR, or what a tree absorbs over its entire lifetime! The microalgae streetlamp has the potential to provide significantly cleaner air in urban areas and revolutionize the cityscape. [Via]
Star Trek’s Scotty Blasts Off
The show Star Trek and the character Scotty may have been fictional (sorry to spoil that), but actor James Doohan was real — and now he’s really in space. The story is slightly spoiled by the fact that Doohan died seven years ago, though had he still been alive the trip would have been impossible. […]
Coffee Drinkers May Live Longer
Keyword in that title is may. The study conducted by the National Cancer Institute (which is part of the National Institutes of Health, and AARP) has associated drinking three or more cups of coffee per day with a 10 percent lower risk of death, though it seems the results are far from conclusive. It needs […]
The Meaning of the Classification of Animals [Pic]
All explained with such clarity. One for the biologists to have a little giggle at. Not sure how I feel about the altered spelling of Genus though… [Via Fake Science]