I have a Dietzgen No. 1757. It's useful for raising my Apple external keyboard up to be level with my ergonomic wrist pad.
In all seriousness, I don't know how to use it, but I should learn. It could come in handy when/where power isn't available. It's amazing how much our knowledge would decline in the event computers & electronic gadgets were somehow destroyed or unusable. I've always tried to learn the basics. For example, when out hiking, I use a map, compass, and protractor -- and use my GPS as a backup.
Anyone have any useful links for non-mathematicians learning to use one?
I am relearning how to use a slide rule (I'm old enough that I had lessons in using a slide rule in my secondary education) to teach basic principles to the pupils in my advanced supplementary mathematics course this summer.
In all seriousness, I don't know how to use it, but I should learn. It could come in handy when/where power isn't available. It's amazing how much our knowledge would decline in the event computers & electronic gadgets were somehow destroyed or unusable. I've always tried to learn the basics. For example, when out hiking, I use a map, compass, and protractor -- and use my GPS as a backup.
Anyone have any useful links for non-mathematicians learning to use one?