During an EEG, the electrical signals of the brain are recorded. This electrical activity is detected by electrodes, or sensors, placed on the patient's scalp and transmitted to a polygraph that records the activity.
Mardi Gras Beads or throws are a fun part of the Carnival festivities in New Orleans, Louisiana.
Visit http://www.MassExplainedApp.com for details. The historical roots of Carnival and Mardi Gras lie in the Catholic calendar. It is the last hurrah before Lent begins on Ash Wednesday. That's why the enormous party in New Orleans, for example, ends abruptly at midnight on Tuesday, with battalions of street sweepers pushing the crowds out of the French Quarter towards home. Mardi Gras literally means Fat Tuesday in French. The name comes from the tradition of slaughtering and feasting upon a fattened calf on the last day of Carnival. The day is also known as Shrove Tuesday (from shriven to confess), Pancake Tuesday and fetter Dienstag.