| Description: | After Heinrich Hertz confirmed Maxwell's prediction of electromagnetic waves at radio wavelengths, "radio" developed and eventually helped Jansky to detect radio radiation from the Galactic Center. The first serious radio astronomy observations were done with a parabolic reflector. This device has been the workhorse for radio astronomy, and satellite communication, ever since. In the course of time both design methods and material and manufacturing advances were developed towards ever larger and more accurate telescopes. In my talk I shall illustrate these technical advances by example of the major telescopes where they were applied. |
