› added 1 month ago

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TIL that the first sign you’re gaining weight is snoring because fat deposits in the tongue first. The tongue’s fatty tissue enlarges, narrowing the airway and causing snoring.

Read more pmc.ncbi.nlm.nih.gov

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wDEP TIL in 2005 an engineer did a cabin pressure test & forgot to put the system back to auto. 115 passengers & 5 crew later passed out mid-flight through oxygen hypoxia. When 2 F16s made visual contact they saw the last conscious air-steward wave out the window before the plane crashed into a mountain.
0wEYN TIL that a healed femur bone (thigh bone), not the clay pot, is considered as the first sign of human civilization.
4pMX TIL a rock shot from a lawn mower can have the same force as a bullet from a .357 magnum
BgBMd TIL when a chimpanzee that learns an effective method to crack nuts open is placed into a new group that uses a less effective strategy, it will eventually stop using the superior method just to blend in with the rest of the chimps.
kOjVm TIL that the energy used to produce a single metal straw is equivalent to 90 plastic straws and the carbon emitted is equivalent to about 150. You'd have to use your metal straw 150 times to break even before it actually becomes beneficial to the environment.