Save. Easy_Company/iStock/Getty Images. Setting up a specially designed and dedicated war room where work groups can collaborate with a minimum of distraction is one of the best steps a business owner can take to improve the group's focus and productivity.
A polygraph, popularly referred to as a lie detector, measures and records several physiological indices such as blood pressure, pulse, respiration, and skin conductivity while the subject is asked and answers a series of questions.
Confidence votes 675. The phonograph was a device used to record and replay sounds from a cylinder, or later from a vinyl disc (record). As with the modern versions, the CD and DVD, the record rotated on the player.