The Soybean Car was actually a plastic-bodied car unveiled by Henry Ford on August 13, 1941 at Dearborn Days, an annual community festival. The frame, made of tubular steel, had 14 plastic panels attached to it. The car weighed 2000 lbs., 1000 lbs. lighter than a steel car.
The second brain contains some 100 million neurons, more than in either the spinal cord or the peripheral nervous system, Gershon says. This multitude of neurons in the enteric nervous system enables us to feel the inner world of our gut and its contents.
While humans have about 100 billion nerve cells in their bodies, other mammals, such as blue whales, boast at least twice that number. The University of Tennessee points out that the elephant's brain is about three times as big as that of a human and contains about three times as many nerves.