› added 6 years ago

126

TIL that transparent aluminum is a real material. It's called Aluminium oxynitride or ALON and has far less weight and thickness than traditional bulletproof glass.

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QJknk TIL Grey eyes appear grey due to Mie scattering, the same type of scattering that causes the sky to appear grey on rainy days.
5Y0KB TIL of a sociological theory that posits most Americans are believers of a "civil religion" - which enshrines sacred symbols such as the flag, claims America's prosperity is due to divine providence, and idolizes soldiers and veterans as martyrs for a higher American purpose
LkDLp TIL Clyde Tombaugh, the astronomist who discovered Pluto, had his ashes placed on the New Horizons spacecraft, which flew to Pluto in 2006.
OkG1 TIL that a PayPal glitch in 2013 made a Pennsylvanian man become the worlds first trillionaire, and first quadrillionaire, with an account balance of $92,233,720,368,547,800.
8aNQV TIL the world's first microprocessor was built in 1968 for the F-14 Tomcat fighter jet (featured in the cinema classic "Top Gun"), and was kept classified until 1998