They invented the first transistor.
No, the first photocopy machine was not invented in Brazil. The first automated photocopy machine was invented by Chester Carlson in the United States in 1938. It was called the Xerox machine.
The air conditioner was first invented in 1902 by Willis Carrier.
Yes, the Fahrenheit thermometer was invented first. It was invented by Daniel Gabriel Fahrenheit in the early 18th century, specifically in 1714.
The battery was invented by Alessandro Volta in 1800. He created the first modern battery, known as the voltaic pile, which was an early version of the electric battery and paved the way for future advancements in electricity.
The duration of Clapperboard - TV series - is 1500.0 seconds.
Clapperboard - TV series - was created on 1972-04-14.
Clapperboard - TV series - ended on 1982-01-01.
You might be talking about a clapperboard? http://en.wikipedia.org/wiki/Clapperboard
A clapperboard is used to synchronize sound and picture and to mark the takes and scenes of a particular picture. You can get more information about this at the Wikipedia. Once on the page, type "Clapperboard" into the search field at the top of the page and press enter to bring up the information.
Clapperboard ,
A Clapperboard .
A clapperboard.
A clapperboard.
Clapperboard
a megaphone ?
It's called a clapboard, or a clap slate, or a clapperboard. According to Wikipedia (see the Related Link below), "Other names for the clapperboard include clapper, slate, slate board, sync slate, time slate, sticks, board, and marker."