How come onions make you cry? asks reader Jessica R.
Elaborate precautions and instructions. Special patented peeling devices. Goggles, with foam seals and anti-fog lenses. Chemical warfare protection, all to produce a slice of something you’ll happily eat on a sandwich.
An onion, uncut.
Onions are a vegetable that seems to resist being eaten. [...]
Why do icicles have pointy ends? asks a reader.
Icicles hanging from the roof on a winter’s day look like glittering stalactites, suspended from the roofs of hidden caves. It wasn’t until 2005 that scientists figured out the mathematical formula = that described the shape of stalactites. In 2006, those same University of Arizona scientists [...]