Post-Its
Post-Its were invented in 1974 as a way for holding bookmarks. The sticky substance on the back was an accidental invention, and while they were a much-needed office supply for years, they're mostly used as pranks now.
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Believe It Or Not, These Aren't Actually Design Flaws
The More You Know
- Stephen Hawking is 73 years old and has outlived his shortened life expectancy due to ALS by over 50 years.
- For every human on Earth, there are 1.6 million ants.
- Tic Tacs got their name from the sound they make.
- All you need is tap water that's piping hot to kill weeds in the cracks of your sidewalks and driveway. Pro tip: add a tablespoon of salt to make it even more effective.