I tried to create a logarithmic widget for the web for anyone to grab. I like logarithmic interfaces — think there are probably a lot of uses for them.

I don't exactly know what I am doing when I venture into Javascript and web stuff but here you go:

https://github.com/EngineersNeedArt/SlideRule

There's a demo page off the link above. It's a janky Ohm's Law calculator. (The top slider & text field are read-only, BTW.)