What’s the deal with imaginary numbers? 

Thats some good inspiring introduction into quantum fourth dimension stuff, thanks

urgh.. this brings back memories of writing - simple - programs in Fortran 77 for crystallography, because Fortran used to be the only language able to deal with imaginary numbers.

This must be what Archimedes was working on when he said "don't disturb my circles" moments before a Roman soldier killed him.

this guy is like the best dad every that we all wish we had in terms of explanations in style of Feynman. Although seeing things like -2i = 2i^2 hurts my eyes

Don’t use lead for presentations. Can’t see it.