Quick Answer. Swedish chemist and philanthropist Alfred Bernhard Nobel invented dynamite. Nobel mixed nitroglycerine and kieslguhr (diatomaceous earth) in a series of experiments in the 1860s to create the explosive, according to History Today. Nobelâs work in the arms industry led him to establish the Nobel prize.
Your bones and muscles work together through a series of impulses and signals communicated between the brain and skeletal muscles. In order to move, the nervous system signals a skeletal muscle to contract. When the muscle contracts, this movement causes the attached bone (or bones) to follow.
The nerves, spinal cord and brain work together to keep you aware of what's going on with the body and get messages out to the muscles and other body systems. Not all nerve meâ¦ssages are handled by the brain though and so not all involve the spinal cord, the main path way to the brain from the body's nerves.