Ultrasonic Microscope May Be More Sensitive, Nondestructive

An ultrasonic microscope might be 10 000 times as sensitive to detail as an optical microscope and offer better signal‐to‐noise ratio. It would not destroy its samples as do the beams of electron microscopes and the staining required with optical microscopes. Thus you could watch effects as you cause them. To test the principle Marvin Chodorow and Bertram A. Auld plan to build one at the Stanford Microwave Laboratory.