Friday math movie: Four Cable Drawing Machine
By Murray Bourne, 10 Jan 2014
One of my favorite devices when I was a kid was my Spirograph. This allowed me to create intricate drawings which had a lovely geometry, like these:
I came across a similar concept recently with these sand art drawing machines. This one uses 4 cables to anchor the moving object. Quite mesmerizing - and an interesting idea for a combined math-art project in school.
[Hat tip to Don Cohen for alerting me to these.]
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