A speakerphone is a device that uses a microphone and a loudspeaker simultaneously so a person(s) can communicate with others without using a headset or a handheld unit.
His scientific renown earned him honorary degrees from Yale and Harvard in 1753 and from William and Mary in 1756. In 1754 Franklin was selected to represent Pennsylvania at the Albany Congress, called to unite the colonies during the French and Indian War.
Benjamin Franklin is the man. Franklinâs Invention. With the 1739 invention of the Franklin Stove, Ben Franklin hoped to solve the problem of all the heat escaping through the chimney. He built his stove as part of the fire place.