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Physics and Maths Study Tips

Introduction to the Universe (IB Option E1)   209 Seconds video showing cosmic scales:    https://www.youtube.com/watch?v=gIbfYsQfNWs#t=132   Powers of Ten video zooming out from earth to edge of universe :   https://www.youtube.com/watch?v=0fKBhvDjuy0     A photo showing why the Milky Way is called that:       A photo showing stars moving across the night sky due to the rotation of the...