› added 8 years ago

103

TIL that on July 4th, 2012, San Diego had planned a 17 minute firework show but it lasted less than a minute when all the fireworks discharged simultaneously.

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wL0EW TIL There were only 3 billion humans in 1960
PYQlL TIL about Agent 355. This was the code name of a female spy during the American Revolution she was very capable with everything from deception to weapons of that time. She was one of the first spies for the United States, but her real identity is unknown
e0Q95 TIL that, even after injecting yourself with epinephrine or receiving it from an ambulance in response to an anaphylactic attack, it's still advisable to visit the ER. 20% of the time, patients may need a second injection or other interventions because the first (for whatever reason) has failed.
LDWZ TIL a quasar group called LQG is the largest known structure in the Universe. The group is so large that it would take a vehicle traveling at the speed of light some 4 billion years to cross it
KYLjJ TIL that Raytheon (now RTX), military industry giant, started as a company producing appliances. From microwave ovens to missile systems.