An interesting little engineering device |
Apparently this thing is called a Roebling device, and is used to calculate wire resistance per foot based on wire diameter.
A very interesting little engineering device, for a highly specialized use.
Just looks really cool, too.
From IMGURian @silvercatbob.
Roebling device used to calculate wire resistance per foot based on wire diameter
https://boingboing.net/2020/05/05/an-interesting-little-engineer.html
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