Don’t believe me? Look at this UNESCO web page on how Simple toys make learning science fun. Arvind Gupta shows how to flatten one end of a plastic straw and make two diagonal scissor cuts to form a double reed. Presto - a magical straw flute!
Watch a 1-1/2 minute YouTube video on the straw flute. Also watch a wonderful 15-1/2-minute TED talk on Turning trash into toys for learning. At 10:05 he makes the flute. For even more you can watch his 1 hour and 10 minute talk from the 2016 Research Scholars Day at IIT on Making Science Fun. (Here the flute is shown at 21:30).
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