In one sense the principal difference between X-rays and the yellow light from a sodium flame is analogous to the difference between the air disturbances caused by an irregular jumble of sharp thin reports of small percussion caps, and the droning of a heavy organ pipe. One is a tangle of single shocks, the other a steady wave motion.


Physics, Lecture (p. 20), The Columbia University Press. 1907

Ernest Fox Nichols Quotes

In one sense the principal difference between X-rays and the yellow light from a sodium flame is analogous to the difference between the air...

In one sense the principal difference between X-rays and the yellow light from a sodium flame is analogous to the difference between the air...

In one sense the principal difference between X-rays and the yellow light from a sodium flame is analogous to the difference between the air...

In one sense the principal difference between X-rays and the yellow light from a sodium flame is analogous to the difference between the air...