Inventor was a Pupil of Lord Rutherford Invisible glass has arrived, and Dr. Irving Langmuir, the American Nobel Prize-winner, has been telling about some of its remarkable properties. It has been produced by his assistant, Dr. Katherine Blodgett, of
at nectady, states the "Daily the General Electric Ca. laboratory Herald.
We have already had invisible shop windows produced by means of curved glass, but in this'new deyelopment the glass itself is treated. Roughly and briefly the principle is this.
The waves of light striking the surface of glass "cannon off" at an angle and reach the eye by reflection. Dr. Blodgett coats the glass with thin films of transparent chemicals which refract light at a different angle.
Refraction, by the way, means the bending of light rays. Water refracts powerfully, and that is why a stick appears bent when you push it into a pool.
Text read from the printed page and cleaned; old type leaves the occasional error.