This is a photo of the Chernobyl "Elephant's Foot", a solid mass made of a little melted nuclear fuel mixed with lots and lots of concrete, sand, and core sealing material that the fuel had melted through. The photo was taken in 1996. At that point, the Elephant's Foot had cooled enough that a human being could stand directly in front of it for an hour before receiving a lethal dose of radiation. When the Foot was first discovered, shortly after the 1986 accident at the Chernobyl power plant, it delivered a lethal dose in just five minutes. You can read Kyle Hill's interesting history of the Elephant's Foot at Nautilus. And be sure to check out this 1991 video that shows how people were able to rig up robotic camera systems to safely take photos of the thing (though, as Hill points out, not all the photos of Elephant's Foot were taken safely).
Astronaut David Scott re-created, in 1971 during the Apollo 15 mission, Galileo’s “falling bodies” experiment by dropping a hammer and feather on the moon at the same time. Simply, both fell at the same rate because there was no air resistance. screengrab via Wonders of Physics/YouTube (Digg)
Hunting around for an outlet or a power battery when you’re trying to charge your phone or tablet is always an annoyance. But when you’re out in the world hiking or camping or traveling, finding an outlet might be more than a minor inconvenience…it might be downright impossible. Running low on battery power isn’t an […]
“Live as if you were to die tomorrow. Learn as if you were to live forever” – Mahatma Gandhi Of all the skills you feel like you should probably know, yet likely don’t, coding might be one of the most intimidating. From the varied programming languages to the range of platforms to the sheer discomfort […]
Even though it feels like Amazon is a singular retail juggernaut crushing everybody else, you might be surprised to learn that half of Amazon’s $280 billion in revenue last year came from third-party sellers. According to numbers compiled by JungleScout, 86 percent of Amazon’s Fulfilled by Amazon (FBA) sellers were profitable last year, more than […]