Wikipedia's long list of common misconceptions (along with details of the truth of the matter in each case). Misconceptions such as that
- Napoleon Bonaparte was especially short.
- searing meat "seals in the juices"
- seasons are caused by the Earth being closer to the sun in summer than in winter.
- shaving causes hair to grow back thicker or coarser.
- earthworms become two worms when cut in half.
- Inuits have a large number of words for snow.