All this is very good in theory, but in practice, you take a piece of iron, wind a wire around it, then plug the wire in. The core gets hot, the wires smoke, and the fuse blows. So you see, there are practical limitations to theory.

To an undergraduate physics class about transformers

Reach Into Space, Time, 1959-05-04

TIME Science: Reach into Space

James Van Allen Quotes

All this is very good in theory, but in practice, you take a piece of iron, wind a wire around it, then plug the wire in. The core gets hot, the...

All this is very good in theory, but in practice, you take a piece of iron, wind a wire around it, then plug the wire in. The core gets hot, the...

All this is very good in theory, but in practice, you take a piece of iron, wind a wire around it, then plug the wire in. The core gets hot, the...

All this is very good in theory, but in practice, you take a piece of iron, wind a wire around it, then plug the wire in. The core gets hot, the...