› added 10 months ago

29

TIL that nearly all of what we see as lightning is the current returning to the cloud from the ground. It appears to be coming from the cloud because it is illuminating the bolts that didn't reach the ground

Read more noaa.gov

via reddit.com

loXJ7 TIL Commercial lobstermen make a v-notch in the tail flippers of egg-bearing female lobsters they encounter while fishing as a means to identify and protect a known breeder in the population from harvest.
Wk6lA Today I Learned that "sideburns" get their name from Ambrose Burnside, a former Union general and U.S. senator, who had extravagant whiskers.
LkjGp TIL - Six Flags used to stage mock Union-spy executions in their Confederate-themed area
DAdj TIL the inventor of radar was pulled over for speeding by a radar-gun toting policeman. His remark was, “Had I known what you were going to do with it I would never have invented it!”
KOjgQ TIL If you sit at one place for hours (students, employees, truck drivers etc.), you have the risk of developing heart disease, obesity, diabetes, dementia, anxiety, indigestion, bad knees, cancer, bad back and it can shorten your life, EVEN if you workout several hours a day.