Seasonings slow food spoilage not by killing microorganis... | funfact.wiki | funfact.wiki
Seasonings slow food spoilage not by killing microorganisms, but by stealing their water. Salt and spice molecules bind with free water in food, lowering its 'water activity.' Even if water is present, microbes cannot use it.
Pure water is an insulator. Electricity passes through water not because of the water itself, but because of dissolved ions. Tap water conducts electricity well because it contains ions like chlorine from disinfection.
The word 'ketchup' comes from '膎汁' (kôe-chiap) in the Chinese Min Nan dialect, meaning 'fish sauce.' It was originally a fermented fish and shellfish sauce—tomato ketchup was not invented until 1812.
Hot water can freeze faster than cold — a phenomenon called the Mpemba effect. Known since Aristotle but still unexplained, it was named after Tanzanian student Erasto Mpemba, whose question physicist Denis Osborne took seriously enough to research together.
Members of the cat family cannot hold water in their mouths because their cheeks are not fully sealed. Instead, they dip their barb-covered tongues into water, creating a momentary water column, then snap their jaws shut to bite off the column.