While most sound comes to use through vibrations in the air that interact with the eardrums, bone conduction instead transmits sound straight through the bone. It’s one of the reasons why a person’s voice sounds different to them when they hear it from another source. Beethoven, though he went deaf, was able to continue writing music thanks to this trick.
In a similar way, there are lots of hearing aids that use this handy feature to keep people hearing friends, family, and music. Thankfully, there are no metal rods that you need to bite down on anymore. They can even keep your ear canals open.
Rolling Straight Twenties
There are multiple generations of people that owe Gygax lots of thanks. Whether you've been coming up with plotlines for your 'murderhobos' since the game first debuted, you enjoy a monthly session with some friends, or you're just getting into Critical Role, it's all thanks to Gygax. Before all this, his wife was trying to figure out why he was sneaking away.
It turns out he was doing something quite the opposite of what she had in mind. He and his friends were drawing maps, coming up with stat blocks, devising creatures, and figuring out a way to use the twelve-sided die. Seriously, even if you play Dungeons and Dragons, have you ever used it?
Like Something That the Joker Would Do
The Bank of England is one of the oldest financial institutes in the world. It's tasked with maintaining monetary stability in the United Kingdom – no easy feat. The bank vault has eight subterranean vaults filled with gold, built with eight-foot thick walls. It holds something like a hundred billion pounds in gold. The sewer worker sent numerous letters warning the bank directors, eventually offering to meet them inside the vault at the hour of their choosing.
They checked him quickly, and discovered he had taken nothing – he simply wanted to warn them. For this act of honesty, they awarded him eight hundred pounds – worth around eighty thousand pounds in today's money.
Talk About a Wild Ride
Every phrase of this story is more and more incredible. She went to work while in labor (or maybe right before), she took work with her to the hospital, she SOLVED the issue, and then she gave birth to something that, very likely, is more famous than she'll ever be. Cohen, married to fellow engineer Thomas William Black, also worked on the Hubble Space Telescope and wrote in all that spare time she clearly had.
Thanks to this one lady, we have pictures of deep space, the astronauts from Apollo 13 got back safely, and we have “School of Rock.” She's done so much for us and got so little recognition for it. No longer!
Nature in Sympathy
This sort of thing happens a lot in nature, but a pair of intelligent creatures don't often form this sort of bond. Ravens are surprisingly smart and are obviously aware of how dangerous wolves are. So they use it to their advantage to get at those tasty, tasty scraps.
This is known as mutualism in nature, it crops up in the relationship between birds that eat ticks off herd animals, aphids that trade sugar-rich honeydew to ants for protection, and clownfish that live inside sea anemones to keep clean and ward off butterflyfish. These kinds of relationships can't be taught, but they crop up to keep both species growing stronger.