Word: two
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Dates: during 1920-1929
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Thomas Augustus Jaggar, volcanologist of :the observatory on Kilauea, H. I., last week addressed the Hawaiian Volcano Research Association. He made two statements of interest: 1) That the time has not yet come when it will be possible to specify exact dates of coming eruptions; 2) That Mauna Loa ("Great Mountain") is preparing an eruption which will occur "sometime within the next 18 months...
...salability, the Eastman tinting is described as giving scenes ''colors conforming to their emotional content." Two makes of talkies (R.C.A. and Western Electric) have their sound records on the edges of the films. Hitherto, if a film was tinted it interfered with light passing through the sound track, distorted the sound. Experiments were made with tinting only the visual portion of the film. The method was successful, but expensive. Then efforts were bent to securing tints that would not affect the light passing through the sound record. This has been achieved so that there is hardly any perceptible...
...years of experiment Professor Albert Abraham Michelson, now the world famed physicist of Chicago University, has little by little whittled away the inaccuracies surrounding the calculated speed of light. In 1926, he set up two reflecting mirrors of his own design on Mount Wilson and San Antonio Peak near Pasadena, Calif. The U. S. Geodetic Survey measured the distance between his two instruments, about 22 miles, and assured him that its figure was accurate within one-third of an inch. Playing light from mirror, he timed the 44-mile round trip, calculated the speed of light...
...explained: "I am well satisfied with the accuracy of the present figures of the speed of light, but the vacuum may enable a further correction of one or two parts in a million, and, at any event, will serve as a check on the previous method...
Radium, beneficent, can be maleficent when misplaced. Two cases of misplaced radium were reported last week...