The unnaturalness of nature

The variations in nature are simply amazing. We all know that there is a metal that is liquid at room temperature: mercury. But do you know about non-newtonian fluids? These are fluids that do not behave like regular liquids. For example, if subjected to sudden stress, a non-newtonian fluid will solidify.
These videos show a non-newtonian fluid composed of a mixture of cornstarch and water. In the first, you’ll see fluid thrown into the air and caught. In the second, you’ll see a man walk – well run – on a fluid.