It's eschatology in motion: 62 tests carried out between 1945 and 1962, of detonations filmed from up to 50 angles. A total of 210 tests were carried out and this tranche is a good slice of them.
The videos released this week include footage of the “Harlem Event,” a 1.2 megaton atmospheric detonation above Christmas Island in 1962. The video below shows how nuclear explosions can result in two distinct flashes of light. The first flash happens when the shockwave is formed, but quickly the superheated air around the blast epicenter “shields the light from inside the fireball,” according to LLNL. “As the shockwave cools to below 3,300 Kelvin, the air becomes transparent and the hot gases begin to show through, creating the second pulse.” Measuring the time between these two flashes, as well as the darkest frame between the two flashes, can help calculate the blast’s yield.
More haunting declassified scans of nuclear weapons test videos released [Megan Geuss/Ars Technica]
The Outdoor Element Kodiak Survival Bracelet resembles the basic paracord bracelet, but when unwound, it reveals a strand that contains firelighting tinder (similar to jute) and a fishing line and hook; the buckle doubles as a fire-striker and reflector. (via Red Ferret)
Elan Lee and Matthew "The Oatmeal" Inman have run some of the world's most successful game Kickstarters, but for their latest, You've Got Crabs, they're just selling it the traditional way.
Going back to school isn’t necessarily an option for everyone. Between the time commitments and steep tuition rates, there are obstacles aplenty as far as furthering education is concerned. However, that’s not to say it’s impossible to learn new skills. Excel with Business lets users access thousands of hours of online learning in Microsoft, business, technology, […]
More often than not, you won’t see an accident coming, which means it pays to be proactive and ensure you have the right tools on-hand before you need them. Whether you find yourself in the middle of a power outage or having car trouble at night, you can make sure you’re still capable of navigating […]
Trains may not be the most popular means of conveyance nowadays, but chances are you grew up playing with toy trains or building a model set to wrap around the Christmas tree. In either case, it’s safe to say that locomotives have long carried a unique sense of awe and scale, especially when they’re hundreds […]