You might argue that it would make sense when you got a closer look at someone’s grill. But how often do you examine the teeth of a friend, let alone some random stranger? And though they wear off in a few days, the idea of repeatedly gluing something to the front of my teeth just doesn’t seem right. [JapanTrends via Newlaunches]
I Hope Temporary Teeth Tattoos Never Become Popular Here
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Video. Chop a tree. Wait three years. And then you can make yourself a longbow.
Video. In order to harden the edge of steel, swords are often heated until they're impossibly hot and then quenched in liquid to rapidly cool down. This creates a much stronger grain structure in the steel which obviously leads to a much stronger sword. An interesting thing that happens during this quenching process is how the sword dramatically bends before it snaps back into shape (with a slight upward tilt).