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Why do we study astronomy
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Astronomy in our daily lives
-Iphones camera is a charge-coupled device which was originally designed for astronomy but is now in most phones
- MRI's utilize aperture synthesis that was first an astronomical technique but now its a medical technique
- Airports utilize a gas chromatograph an instrument designed for mars misson but is now use to analyze luggages for explosive
Benefits of learning astronomy
Fun facts
- To satisfy our curiosity about the world we live in
- Lets us experience a larger reality out of our normal life style
- Lets us estimate how our universe will be in the future
- Sun for solar energy
- Moon to know about the tides
-Galileo made first telescope ever
-Light from distant stars and galaxies takes so long to reach us, that we are actually seeing objects as they appeared hundreds, thousands or even millions of years ago. So, as we look up at the sky, we are really looking back in time.
-Shooting stars are usually just tiny dust particles falling through our atmosphere.
What is astronomy?
How people in the past used astronomy?
-Astronomy is the branch of science that deals with celestial objects, space and the physical universe as a whole
- Navigate oceans
-Determine when to plant their crops
-Tell fictional stories eg: universe was made of glass and stars were light shown from heaven
- Time telling
-Calendar system