› added 10 years ago

149

TIL The doctor who discovered that hand washing prevented the spread of disease was thrown in a mental institution for his crazy ideas.

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v1d1L TIL that every single tree in Singapore is recorded and searchable on an interactive public map. Each tree has detailed information about its species, age, height, girth, and more.
5YjD8 TIL that gum disease can be associated with Alzheimer’s disease and other dementias, and that Alzheimer’s is associated with markers from oral bacterium P. gingivalis
w118 TIL Columbus thought manatees were mermaids on Jan 09, 1493 describing them as “not half as beautiful as they are painted.”
LQj9v TIL that the extra skin on the elbow joint is called Weenis
16lp7 TIL Adults who remain in cities after retirement actually live longer on average than those who retire to rural areas.