Roebling device - GIF

Roebling device used to calculate electrical wire resistance per foot based on wire diameter.

<video controls autoplay loop> <source src="https://diqn32j8nouaz.cloudfront.net/roebling_resistance_tool.mp4" type="video/mp4"> Your browser does not support the video tag. </video>


Previously:

https://www.homemadetools.net/forum/...730#post152062
https://www.homemadetools.net/forum/...106#post141241
https://www.homemadetools.net/forum/...170#post145654
https://www.homemadetools.net/forum/...620#post147509

I used to have a slide chart for that

Interesting, it has that unmistakable Fibonacci curve as its basis. Blows my mind!