3 ms·

I have one of these, inherited from my dad who was a physicist working as an engineer. I frankly have no idea how it works, but I fondly recall my dad using it

I have one of these, inherited from my dad who was a physicist working as an engineer. I frankly have no idea how it works, but I fondly recall my dad using it before he got a calculator in the 80s

anyfoo 4y ago
It’s really simple. You can look it up online and know pretty much everything necessary for using it after about 5 minutes.