We spend a third of our days asleep, and a good portion of the rest of them talking about it. We had a good night's sleep, a bad night's sleep, we stayed up too late, got up too early, now we're exhausted, last night we wrote a perfectly coherent essay in our sleep... well, maybe not. But Dr. John D. Quackenbos did, or so says a Popular Science article from 1919.
And in true archive gallery form, there's more weirdness where that came from. Putting people into a "frozen sleep" to cure cancer, a bizarre fix for insomnia, a soundproof sleep booth and more.
We've also sprinkled in some interesting facts about the effects of sleep deprivation, and what happens when you dream. Enter the gallery above to learn more. Hopefully we don't put you to sleep.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.