AN INVENTION CREATED AFTER THE XX CENTURY:

A remote control is an electronic device used to perform an operation on a remote machine. The term used to describe the remote to the TV or otherwise. Remote controls are usually small objects with an array of buttons to adjust the values (the TV channel). In most modern control device contains all the control functions. They communicate with their respective devices via infrared signals and only a few use radio signals. There are controls or radio controls for many other devices, scale models of airplanes, helicopters. Many robots are controlled remotely as well as some of the newest fighter jets.

CONCERNING THE HISTORY OF THIS INVENTION: In 1903, Leonardo Torres Quevedo presented the Telekino accompanied by memory and by an experimental demonstration. The Telekino was a robot that executed commands transmitted by radio waves, was the first apparatus radiodirección the world. During World War II, was conducted using remote control technology for military purposes. The first gadget designed to remotely control a television was developed by Zenith Radio in early 1950. The control cable used to connect to the TV. To improve the cumbersome system, created a wireless remote control in 1955. The controller, called "Flashmatic", works by sending a light beam to a photocell. Unfortunately, the cells did not distinguish between light of the command and the others. In 1956, Robert Adler developed "Zenith Space Commandun" wireless experience, used ultrasound to change the channel and volume. The receiver contained a microphone attached to a circuit that was set to the same frequency. In the early 80's, when semiconductors were developed to emit and receive infrared radiation, remote controls were gradually changing the technology to those in today.

SIGNED BY: HUGO DEL VALLE CORTE (HDVC)