Sputnik was the first artificial Earth satellite. The Soviet Union launched it into space on 4 October 1957, orbiting for three weeks before its batteries died. It was a sphere with four external radio antennas to broadcast radio pulses. Its radio signal was easily detectable by radio antennas. It was also capable of measuring the thickness and temperature of the high upper atmosphere. The satellite transmission was monitored by radio operators all around the world. It burned up in the atmosphere.
I think it was Ireland...
Being aware of your surroundings <span />
Well first off they are commonly used for special needs. "<span>What appears as simple as a button, the proper switch will open up worlds of access to communication devices, environmental controls, computer software and mobile devices".</span>
Refrence:https://www.especialneeds.com/shop/assistive-technology/switches.html
