Telescopes just refract.
This is not completely true.
If we look at the HST (Hubble Space Telescope) this is a telescope that uses reflection rather than refraction.
Basically light enter the telescope and reflects of one concave mirror onto another concave mirror leading to a focal point where you can see an image.
(look on Google images "Hubbell's optics" and a little bit down there is a double diagram with a white background.")
Reflecting telescopes use mirrors to gather and focus light, while refracting telescopes use lenses. Reflecting telescopes tend to be more compact and easier to support larger apertures, making them popular for professional astronomical research. Additionally, reflecting telescopes are less affected by chromatic aberration compared to refracting telescopes.
Reflecting Telescopes -uses a single or combination of curved mirrors to bring light to a focus and make an image.
Most modern telescopes are reflecting telescopes because reflecting telescopes are generally more cost-effective and easier to build at larger sizes compared to refracting telescopes. Reflecting telescopes also suffer less from chromatic aberration and can have a simpler design with fewer optical elements.
Reflecting telescopes tend to be larger than refracting telescopes because they do not suffer from chromatic aberration, allowing for larger apertures and therefore more light-gathering capability. This makes reflecting telescopes popular for professional observatories and research purposes. Refracting telescopes, on the other hand, are limited in size due to the weight and cost constraints of large glass lenses.
Light is found by reflecting telescopes and refracting telescopes are used to dected sound
A reflecting telescope.
concave mirror, like those found in makeup mirrors or reflecting telescopes.
Reflecting telescopes use mirrors to gather and focus light, while refracting telescopes use lenses. Reflecting telescopes tend to be more compact and easier to support larger apertures, making them popular for professional astronomical research. Additionally, reflecting telescopes are less affected by chromatic aberration compared to refracting telescopes.
Reflecting Telescopes -uses a single or combination of curved mirrors to bring light to a focus and make an image.
Ground-based telescopes, and space telescopes. Or: refracting telescopes (main collector is a lens), and reflecting telescopes (main collector is a mirror). Or: Home telescopes (small ones), and professional ones (larger and more expensive).
Most modern telescopes are reflecting telescopes because reflecting telescopes are generally more cost-effective and easier to build at larger sizes compared to refracting telescopes. Reflecting telescopes also suffer less from chromatic aberration and can have a simpler design with fewer optical elements.
Reflecting telescopes tend to be larger than refracting telescopes because they do not suffer from chromatic aberration, allowing for larger apertures and therefore more light-gathering capability. This makes reflecting telescopes popular for professional observatories and research purposes. Refracting telescopes, on the other hand, are limited in size due to the weight and cost constraints of large glass lenses.
Concave means bulging inward - reflecting telescopes use this sort of mirror. The first telescope designed to use one was invented by Isaac Newton and they are therefore called "Newtonian" telescopes.
Light is found by reflecting telescopes and refracting telescopes are used to dected sound
Reflecting telescopes use mirrors to collect and focus light, while refracting telescopes use lenses. Reflecting telescopes typically have a closed tube design which protects the mirrors from dust and other contaminants, while refracting telescopes are more prone to chromatic aberration. Reflecting telescopes are generally easier to manufacture at larger sizes compared to refracting telescopes.
A radio telescope is a reflecting telescope, and uses a mirror rather than a lens. Since radio waves are so much longer than light waves, the 'mirror' of a radio telescope is the 'dish' reflector that focuses radio waves onto its antenna, located at the prime focus of the dish.
they the same