What do Lifeguards, Lasers, and Archery Fishing Have in Common?
In this video we use math from a standard lifeguard-path optimization problem to understand why light refracts, and then modify the math to measure the speed of light in water using a ruler, a cup of water, and a laser pointer.
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The topics covered were to simplistic for me
2.9Oh, how cool this is! Lovely introduction to creative physics experimentation ... Well done!
6.1Amazing! The motivation was strong, the results well laid out and not overly complex. You put in some funny clips as well along the way. Loved this, thank you!
9being able to recreate it at home really allows for great hands on learning
7i really do enjoy your videos, and this was very nice and easy to follow. my only nitpick would be, that saying "light always travels the fastes path" feels unsatisfactory. I dont know physics well enough to know whether this could maybe have been justified better in a few sentences. cheers
7.4I love the analogy with the lifeguard, but I would like an explanation for why light takes the shortest path.
7.1I like this a lot. Refraction is really an interesting topic. I didn't rate this extremely high, as I am very familiar with the topic. But I do appreciate the effort.
5.3Quite same as available in market but still good video...
5.7Nice hook, mentioning Mythbusters and posing the question. Good idea to involve the viewer in trying it on their own using simple tools. Good job all ‘round!!!
8.6