Wow, I Never Knew That!

S1, EP12 "Swiss Army Knife; Cup of Joe; Hamburger"

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The evolution of the Swiss Army Knife; miniature golf; where the terms "cup of joe" and "java" came from; the invention of dynamite; the origin of the hamburger patty; why we say "knock on wood" when we want to make sure nothing bad happens.

Filmhub23m

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