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Student's Contraption Kinetically Illustrates Pythagorean Theorem
If the Greeks had Plexiglas
I haven't had to use the Pythagorean Theorem since the days of hand drafting, but I believe builders today will still lay out a 3-4-5 to quickly get something square. That's because they know it works. But for those who are not trying to figure out how long to cut a gable roof rafter, and who have any doubt that A-squared plus B-squared does in fact equal C-squared, one student has created a clever display to illustrate the principle:
Sadly there's no credit given for this 2009 video, with the annotation only referring to "Brentwood," which I'm guessing is the name of the school or fair where this was displayed. If anyone has a line on who the girl who built this is, please let us know in the comments!
Via Kottke
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Comments
An almost identical display has been on exhibit in the Universum Science Museum in Mexico City for at least 15 years. Really smart way to show, not tell a mathematical formula.
And another nearly identical one has been on display at the Museum of Science in Boston for at least 40+ years.
reminds me of this crazy theory we learned in culinary school. if you take 1/2 cup, 1/3 cup and 1/6 cup of liquid, and put it into a single container, you get 1 cup exactly!!!! still blows my mind to this day.
This is awesome!