We now know that a pulsar is a rapidly rotating neutron star whose radiation is emitted like a spinning flashlight. Over 700 pulsars have now been detected, with rates of rotation ranging from once every 4 seconds to more than 600 times per second.
Share on Facebook. Share on Google Plus. Touretteâs syndrome is a neurological disorder that causes involuntary vocal and motor tics. The tics frequently involve physical movements like jerking, foot stamping, kicking, and facial movements and can be accompanied by grunts, coughs, barks, or shouts.hare on Facebook. Share on Google Plus. Touretteâs syndrome is a neurological disorder that causes involuntary vocal and motor tics. The tics frequently involve physical movements like jerking, foot stamping, kicking, and facial movements and can be accompanied by grunts, coughs, barks, or shouts.
Most individuals with Tourette's syndrome perceive some inner body sensation before the tic occurs. For example he/she may feel a burning or an itching of the eyes that is suppressed by moving the eyes, or a tickling in the throat that is relieved only by clearing the throat.