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https://youtu.be/V9K6gjR07Po UV cameras expose a hidden world and reveal the incompleteness of our perception. In summary, ultraviolet light interacts differently with matter for a number of... read more
Elephant Toothpaste is a popular demonstration to introduce the concept of decomposition reactions. The chemical reaction involved is the decomposition of hydrogen peroxide into oxygen gas... read more
http://www.ted.com/talks/chris_hadfield_what_i_learned_from_going_blind_in_space?language=en There's an astronaut saying: In space, “there is no problem so bad that you can’t make it worse.”... read more
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