The brain is an extremely delicate organ that, like a glass artefact, needs many layers to protect it from injury. Besides the skull, the brain has three protective tissue layers called meninges. They form a protective covering around the entire central nervous system, including the brain and the spinal cord, and help to regulate different functions of the brain.
Researchers from IISST used simple polymethyl methacrylate (PMMA) to partially correct a turbulent laser beam and restore its statistical order.