Calling Green Peas With Ultra Sound

Bay of Plenty Beacon, Volume 14, Issue 19, 1 August 1949, Page 8

Calling Green Peas With Ultra Sound

“Writers on occultism and the secret Wisdom,” observed Vernon Duckworth Barker, in a light pro- ! gramme talk from Geneva, “have always asserted that there is a mys_ tic creative power in sound. They maintain that creation itself crystallised around the atoms of an ineffable word. In the United States scientists are beginning to do the most amazing things with what they call ultra sound, that is sound waves with a vibration rate much too high for them to be audible to the human ear. The human ear catches sound vibrations up to about 16,000. per second. But generators now reach vibration as high as 12,000,000 per second. Sound waves of this type can burn your, finger, kill microbes, and 'sterilise food. Potato seeds treated with inaudible sound flowered a week earlier than other plants while green peas produced twice and in some cases three times their normal yield. It is not difficult to see how scientists, farmers and statesmen can work together on the resources of our planet in a way undreamed of the day before yesterday.”