The earliest microscopes were called flea glasses because they were predominantly used to observe small insects such as fleas!
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The game Operation was invented by a university student at the University of Illinois in 1962 as part of a class assignment to invent a toy or game. The patient in the game is named ‘Cavity Sam’.
Mount Rushmore went through several changes. In one version of the monument, words were to be etched into the rock face, words that would briefly describe the history of the United States, highlighting nine important events between 1776 and 1906. But due to funding, and issues over wording, this plan was ultimately scrapped!
The earliest known precursor of sunglasses was invented in prehistoric times by the Inuit. They made snow goggles out of walrus ivory that had two narrow slits that reduced the wearer’s exposure to sunlight and protected them from going snow-blind.
Fact Lab
The game Operation was invented by a university student at the University of Illinois in 1962 as part of a class assignment to invent a toy or game. The patient in the game is named ‘Cavity Sam’.
Mount Rushmore went through several changes. In one version of the monument, words were to be etched into the rock face, words that would briefly describe the history of the United States, highlighting nine important events between 1776 and 1906. But due to funding, and issues over wording, this plan was ultimately scrapped!
The earliest known precursor of sunglasses was invented in prehistoric times by the Inuit. They made snow goggles out of walrus ivory that had two narrow slits that reduced the wearer’s exposure to sunlight and protected them from going snow-blind.
It takes 540 peanuts to make a 12-ounce jar of peanut butter. By law, if something is labelled ‘peanut butter’, it should contain at least 90% peanuts. Americans love peanuts so much, that even astronaut Alan Shepard brought a peanut with him to the moon!
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