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TIL Beats headphones contain about $17 worth of parts and a full 1/3rd of their weight comes from metal weights

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W7eV4 TIL The creators of Superman Jerry Siegel and Joe Shuster modeled Superman's alter ego, Clark Kent, on their own shortcomings. Both were short, wore glasses, and neither got a date easily. Superman reflected their own social struggles and fantasies
XEr56 TIL the FBI built a multi-million dollar eavesdropping tunnel under the Soviet Embassy in Washington, but never used it in the fear of getting caught, instead giving tours of it to high-security officials. It was only discovered by the Soviets when US double-agent Robert Hanssen informed them.
yQ7dv TIL that American Young Earth creationist Kent E. Hovind made a $250,000 offer to anyone who could meet a set of requirements he said would prove evolution.
YwmP TIL The allies used a ghost inflatable army to trick Hitlers forces.
AN0Zg TIL the chain locker on a ship is one of the most dangerous rooms for a person. The oxidizing metal can drop oxygen to lower than 6%. Normal air contains 21% oxygen