The term âcatapultâ is used to define a very wide variety of large machines for hurling projectiles and some of the more common variations include the trebuchet, which is a catapult that uses gravity and a seesaw effect to hurl its projectile.
A demyelinating disease is any condition that results in damage to the protective covering (myelin sheath) that surrounds nerve fibers in your brain and spinal cord.
Dematerialization or âDematâ is a process whereby your securities like shares, debentures etc, are converted into electronic data and stored in computers by a Depository. Securities registered in your name are surrendered to depository participant (DP) and these are sent to the respective companies who will cancel them after âDematerializationâ and credit your depository account with the DP.