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Optical telescopes use either lens' (refractory) or mirrors (reflective) to magnify light. Radio telescopes use dishes to pick up radio waves. sensors on the dishes collect the waves and turn them into a picture
Radio telescopes collect radio waves. Optical telescopes capture visible light waves.
Radio telescopes collect radio waves. Optical telescopes capture visible light waves.
As far as I know, there is no "optical radio telescope". There are, separately, optical telescopes (which work with visible light), and radio telescopes (which work with radio waves).
ionosphere reflects radio signals.
Both types of telescope collect and focus electromagnetic radiation for observational purposes, the difference is their band of observed frequencies. Radio telescopes are used for the radio frequencies ( ~3km - ~30cm) while optical telescopes are used for frequencies closer to visible light ( ~0.7μm - ~0.4μm). Optical telescopes may also be able to detect infrared and ultraviolet light.
ships
Radio communication is the transmission of information through radio waves between two or more devices. It is used for various purposes such as broadcasting, two-way communication like walkie-talkies and cell phones, and communication with satellites and spacecraft. Radio communication relies on frequencies within the radio spectrum to transmit signals over short or long distances.
Communication using the radio began with the two-way radio in the war, around the time of 1907. It was five years after that, that military use of the radio became more evident and available in order to make communication between ships.
communication between ships and rigs + between the staff and as well as with the company worked for.
No. The gain of the antenna ... which translates directly into angular resolution ... depends on the wavelength (frequency) of operation.The 2.5 meter optical parabolic reflector (telescope) on Mt. Wilson is a titan. 2.5 meter parabolic radio antennas are routinely used in intercity microwave communication but would be quite useless for serious radio-astronomy, as they are such shrimps at radio wavelengths.
yes