radiotähystimistä
Radiotähystin, also known as a radio telescope, is an astronomical instrument designed to detect radio waves from extraterrestrial sources. Unlike optical telescopes that collect visible light, radiotähystimets focus on the radio portion of the electromagnetic spectrum. These instruments typically consist of a large parabolic dish, which acts as a collector, or an array of antennas. The dish reflects incoming radio waves to a focal point where sensitive receivers amplify and record the signals.
The development of radiotähystimets began in the 1930s, initially for scientific serendipity when Karl Jansky detected
Radiotähystimets are used to investigate cosmic microwave background radiation, the afterglow of the Big Bang, and