UsefulBS
Straight facts. Answers to questions you never knew you had.
Featured Articles
Why did aristocrats once believe tomatoes were poisonous because their acidity leached toxic lead from pewter dinner plates?
Wealthy Europeans once dubbed tomatoes poison apples because their high acidity leached toxic lead from the pewter plates common in aristocratic households. This caused lead poisoning, but the fruit was blamed instead of the dinnerware.
Why are airplane windows rounded because square corners would create stress points that could cause the cabin to crack?
Airplane windows are rounded to prevent structural failure. Square corners concentrate pressure at specific points, making the fuselage prone to cracking under the stress of cabin pressurization. Rounded edges distribute this stress evenly, ensuring the aircraft remains safe and intact.
Why do coins have tiny ridges on their edges to prevent thieves from secretly shaving off precious metal?
Known as reeding, these ridges were originally added to gold and silver coins to stop people from shaving off the edges to steal precious metal. If the textured pattern was missing or smoothed down, it was immediately clear that the coin had been tampered with and was no longer worth its face value.
Stay Updated
Subscribe to our newsletter to receive the latest articles and updates.
Recent Articles
Why can some people voluntarily create a deep rumbling sound inside their ears by flexing a tiny muscle?
Some people can voluntarily contract the tensor tympani muscle in their middle ear, which typically functions automatically to dampen loud noises. This intentional flexing creates a low-frequency vibration perceived as a deep rumbling sound.
Why is the human sense of smell for rain actually more sensitive than a shark's for blood?
Humans can detect geosmin, the chemical scent released by soil during rain, at concentrations as low as five parts per trillion. This is significantly more sensitive than a shark's ability to smell blood at one part per million. This heightened sense likely evolved to help ancient humans locate water sources and fertile land.
Why was the first high five ever recorded between two baseball players in the year 1977?
The first recorded high five occurred on October 2, 1977, when Los Angeles Dodgers player Glenn Burke spontaneously raised his hand to celebrate teammate Dusty Baker’s 30th home run. Baker instinctively slapped it, turning a moment of historic athletic achievement into a global symbol of celebration.
Why did ancient Romans use urine as a mouthwash to whiten their teeth because of its ammonia?
Ancient Romans used aged urine as a mouthwash because it contains ammonia, a natural cleaning agent and disinfectant that effectively broke down stains to whiten their teeth.