Telescopes

Interferometry

What is Interferometry?

Interferometry is a technique used by scientists and engineers. Tools called interferometers add together 2 or more waves of light. When they do this, the waves of light interact (or interfere) with each other. This can add the waves together, making them brighter. It can also cancel the waves out. Interference only takes place if the waves come from the same object or have the same frequency. We call these types of wave coherent.


Allan Chapman

Occupation: Historian

Year born: 1946

Research Areas: History of Science, History of Astronomy, Broadcasting

 

"Historians of astronomy…are… people with a broad and open-minded curiosity about those forces which drove human endeavour in the past."

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