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.
Edison suggested other uses for the phonograph, such as: letter writing and dictation, phonographic books for blind people, a family record (recording family members in their own voices), music boxes and toys, clocks that announce the time, and a connection with the telephone so communications could be recorded.