Doctors may describe these injuries as âmildâ because concussions are usually not life threatening. Even so, the effects of a concussion can be serious. After a concussion, some people lose consciousness or are âknocked outâ for a short time, but not always â you can have a brain injury without losing consciousness. Because the brain is very complex, every brain injury is different.
It is made up of one part water with one-and-a-half to two parts cornstarch, and a bit of food color can be added. The mixture, sometimes called Oobleck in reference to a Dr. Seuss book, acts as a thick liquid when allowed to sit, but as a solid when force is applied.
But dip your hand slowly into the mix, and see what happensâyour fingers slide in as easily as through water. Moving slowly gives the cornstarch particles time to move out of the way. Oobleck and other pressure-dependent substances (such as Silly Putty and quicksand) are not liquids such as water or oil. They are known as non-Newtonian fluids. This substance's funny name comes from a Dr. Seuss book called Bartholomew and the Oobleck.