Honey never spoils
Archaeologists have found pots of honey in ancient Egyptian tombs that are still edible. Its low water content and acidity stop bacteria from growing.
More science facts
See all →Lightning is about five times hotter than the Sun’s surface
A bolt can heat the air around it to roughly 30,000 °C. The Sun’s surface is a comparatively mild 5,500 °C.
Read the fact →Hot water can freeze faster than cold water
Known as the Mpemba effect, it has been observed for centuries — Aristotle mentioned it — and scientists still debate exactly why it happens.
Read the fact →Glass is not a slow-moving liquid
The old story that medieval windows are thicker at the bottom because glass flows is a myth. The panes were simply made unevenly. Glass is an amorphous solid.
Read the fact →