Word: billionths
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...almost every disease has some causative species or strain of bacteria, just so every kind of bacteria has a bacteriophage which kills it. He has not seen these bacteriophages. But he has measured them. The diameter of each one is between 20 and 30 millicrons or about one-billionth of an inch.† Also, he has seen how they destroy a bacterium. One or more bacteriophages, of the kind peculiar to the bacterium under study, penetrate the body of the germ. There they breed until they number some 18, when they become too many for the bacterium to contain...
There lay the significance of an announcement last week by Physicist Ralph C. Hartsough of Columbia that he had perfected a set of mirror-scales capable of weighing, distinctly and faithfully, down to one 280-billionth of an ounce. Gossamer quartz filaments balance the scales, the slightest titillation of which is reflected from their gold-mirrored surfaces by a ray of light. The ray is split by two half-mirrors, being reunited on the scale-mirrors, where any disparity between the wavelengths of the reunited portions is clearly seen as shadow bands. Thus, when the object weighed (1/29...
Both elements occur in the so-called Mangan group of inorganic earth elements (i. e. manganese, chromium) and constitute about a billionth part of the earth's crust. Inert, their commercial and scientific value is unknown, probably small...
Cognizant that brevities are man's only weapons in his long war with Time, Paul Heymans. Professor of Theoretical Physics at the Massachusetts Institute of Technology, recently perfected a device capable of measuring intervals as small as one-billionth of a second. His method, first conceived by Prof. P. O. Pederson of the University of Copenhagen, consists of the employment of the so-called "Lichtenberg Figures"-phenomena which become manifest when an electric wave is reflected from an electrode. When two electrodes are placed side by side at a given angle, these Lichtenberg Figures will meet, coincide-the moment...
...Oliver Lodge speculated on what becomes of waste energy radiated from the sun and other stars. The earth gets less than one billionth part of the sun's heat. Is the remaining radiation absorbed by the universe? He suggested that this is a possible source of electron formation and the birth of new matter...