› added 9 years ago

433

TIL the fastest that humans have ever travelled on land is 760MPH (ThrustSSC). In the air, 4520MPH (X-15 Jet). And in space, 24,791MPH (Apollo 10 upon re-entry).

Read more primermagazine.com

via reddit.com

R7p74 TIL Nowadays, it’s rare to be served really hot mustard in restaurants, and mustard in jars and packets is rarely very spicy. The sinus-burning condiment once served at Chinese restaurants was just brown mustard seeds ground to a powder and mixed with a little water just before serving
noVY TIL that UC Davis researchers devised a test for bomb and drug-sniffing dogs. They put dogs through 144 runs of a clean room with no drugs or explosives. But the dogs indicated on 123 runs, indicating a failure rate of 85% according to the test’s criteria.
OX06 TIL there is a Catholic Saint of Beer. Saint Arnold of Soissons saved the lives of many by urging them to drink beer rather than water that was spreading the plague. Boiling during the brewing process killed the pathogens.
e056 TIL when pursued, kangaroos will retreat to bodies of water. So they can hold their pursuer under and drown them.
Oorxa TIL that Einstein's wife was his secret collaborator