[wtbob]

I use one for homebrewing: http://www.northernbrewer.com/shop/books-media/software/beer...

It's a great technique. Faster than a calculator or computer program, and satisfyingly physical too.

[greenyoda]

The device in that picture has movable scales, so it's really a slide rule[1], not a nomogram.

[1] https://en.wikipedia.org/wiki/Slide_rule