› added 1 year ago

45

TIL that silverfish and bristletails are the only insects that don't undergo metamorphosis.

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pxp4 TIL that modern flat glass is created by floating molten glass over molten tin. This is what gives glass its uniform, smooth surface.
D1Jng TIL the echidna and the platypus are the only mammals that can lay eggs
DQYYD TIL, why my sunburns sting so bad. Some soothing gels for sunburns have lidocaine in it to help ease the pain of a burn. However, I am one if the rare few who is allergic to this. So don't be like me and learn the hardway that you can be allergic to lidocaine. Posting to hopefully save some pain.
0r75 TIL a scientist from Utah used his obituary to confess that not only had he never graduated from college or got a Ph.D, but that he never even learned what Ph.D stood for.
BgKvr TIL that over half of the world’s internet users got online for the first time after 2010. As of 2021, there were about 4.9 billion internet users globally, up from 2 billion in 2010.