It took a child named Erasto Mpembra to discover that hot water freezes faster than cold water. No adult would even consider testing such a wild theory. Mpembra was curious, and discovered knowledge new to science at the age of 13.

There are more microorganisms in a handful of soil than people on Earth. This includes millions of species and billions of organisms—bacteria, algae, microscopic insects, earthworms, beetles, ants, mites, fungi, and more.