Friday, 14 December 2012

A video that caught my eye

Why is it Dark at Night ?
Although this may seem as a simple question , there is actually a scientific reason that explains in , as shown by the creator of this video . I have been following this Youtube channel for some time already and his videos are not only entertaining , but also educational so i encourage you to go check his videos out :)

Things I learned from the video
1) The sky is blue during the day because sunlight scatters across the atmosphere
2) There is no edge to space
3) Stars and cosmic radiation is constantly moving faster and away from earth due to the universe constantly expanding

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