Sir WILLIAM BRAGG
O.M., K.B.E., F.R.S.
X-RAYS AND radio WAVES differ from light in degree and not in kind. All can be described as ether waves, but the X-rays are thousands of times shorter than light waves, while the radio waves are hundreds of millions of times longer. It is interesting to know that the differences in their behaviour are due to their differences in magnitude.
In discussing these points
Sir William Bragg will conclude his last talk in this series, and the many who have listened and wish to know still more about this subject are now in a pesition to read with all the greater understanding his famous book ' The Universe of Light'