The radio telescope

1. The Radio Telescope By: Rachel, Biko, Nat and Mo

2. Pros They are easy to build Can operate in bad weather Can be controlled over the internet Cheap to make Cons They are too heavy to lift into space They are costly to maintain. Placed in remote places Affected by other radio waves Pros and Cons of Radio Telescopes

3. A diagram of a Radio T elescope

4. Famous Radio Telescopes The Parkes radio telescope Karl G. Jansky VLA (Very Large Array)

5. The Parkes Radio Telescope

6. Karl G. Jansky VLA

7. Radio waves reflect off of the dish and into the tip There are receivers under the tip that intercept the radio waves How Radio Telescopes Work

8. We use them to intercept radio waves from space Invented in 1937 by Radio telescopes can measure hydrogen between stars, something that optical these telescopes measure radio waves, enabling them to see into ranges that optical telescopes cants see, Scientists can make false color pictures from these radio waves. telescopes cant do because E t astronomer Grote R ever , radio telescopes can search. Contribute in many ways to astronomers zero mission wavelengths of these hydrogen clouds are too long. Objects such as pulsars and quasars are highly energetic and emit radio waves in addition to visible light. Radio telescopes can read these radio waves and gain additional information about these objects. Why we use radio telescopes

9. What a radio telescope needs to function An area with no radio waves from any civilization ( eg . TV, computer, radio and GPS) It needs radio waves to function A dish An antenna A stand