It pays to listen to everybody. Like the time Danish physicist Dr. Niels Bohr let the air out of Professor Einstein's objection to the Heisenberg uncertainty principle. You may recall h o w the Professor postulated a box lined with perfect mirrors having an alarm clock inside, the entire device suspended from a balance. The contrivance suggested the H e i s e n b e r g principle w o u l d n ' t work in a 4-dimensional universe. That had Dr. Bohr stumped. Until
Now we're listening to you and learning more every day. Which is why we can serve you so well. Which is just as satisfying as winning a joust with Professor Einstein. Need technical assistance? Call our Customer Service Dept. in Des Plaines, 111. We're all of us radiochemical good listeners. catalog 69-70 And send for our first edition, _
he recollected having listened to Einstein's theory making the rate of the clock a function of gravity and saw that the clock's rate of operation m u s t d e p e n d on its position in the gravitational field of the earth. " 'Twas sport to have the master hoist with his own petard." We listen to everybody, too. We draw on the experience and know-how of The Radiochemical Centre at A m e r s h a m , England, and G. D. Searle & Co.
how the great Dane helped 2 oldmc box himself in
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" F r o m THIRTY YEARS THAT SHOOK PHYSICS by G. Gamow, illus. by G. Gamow, copyright 1966 by Educational Services, Inc., pub. by Doubleday & Co., Inc." Circle No. 8 on Readers' Service Card
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