It never stops amazing me! Here is another newspaper clip from 1966. This time a hospital room gets an ultrasonic cleaner through a charitable donation. Till recently, I was under the mistaken impression that ultrasonic cleaning is a relatively modern technology. The deeper I dig the more astounding it gets. That it is being used in a hospital operation theater indicates that the technology had reached sufficient maturity back then itself! It would seem that the major wonders of science were discovered in the 20th century and all that we are left with is a process of refinements and upgrades. Something to think about….
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