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Telescopes
vocabulary of telescopes
Term | Definition |
---|---|
telescope | a device built to observe distant objects by making them appear closer |
visible light | electromagnetic radiation that can be seen with the unaided eye |
spectrum | the range of wavelengths of electromagnetic waves |
reflecting telescope | a telescope that uses curved mirrors to collect and focus light |
radio telescope | a telescope that collects radio waves from space |
electromagnetic radiation | energy that can travel through space in the form of waves |
wavelength | the distance between the crest of one wave and the crest of the next wave |
optical telescope | a telescope that uses lenses or mirrors to collect and focus visible light |
refracting telescope | a telescope that uses convex lenses to collect and focus visible light |
observatory | a building that contains one or more telescopes |
optical telescope | a telescope that uses lenses or mirrors to collect and focus visible light |