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Telescopes allow us to study space from Earth!!!

 letter from scientist.

Dear Andrew,     

when you look at an object, your eyes are gathering light form that object. Visible light is form of electromagnetic radiation which is energy that travels across distaces as certain type of waves. If you shine a flashlight through a prism, the beam of white light will sparate into a range of colors called a spectrum. wavelingth is the distance between one wave peak and the next wave peak. A telescope is a device that gathers electromagnetic radiation. Types of reflecting telescope, this type of telescope has a curved mirror that gathers light. the other one is the refracting telescope, this type of a telescope has an objectiv lens. some scientis study space from the telescops in outer space.

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