Word: reflector
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...General Electric bulb, also intended chiefly for highways, is equipped with a reflector resembling a "floppy bonnet" to concentrate the light downward, prevent it from being diffused in all directions. It consumes between 80 and 90 watts; its light output is equivalent to that of a Mazda lamp consuming 215 watts...
...observatories the director will press a button and transmit the signal to the Exposition. W. A. Calder, tutor in Astronomy, who has been doing research work in astronomy with the photo-electric cell, has invented and set up the apparatus that will be used on the 24-inch reflector at Oak Ridge...
...Washington last week Hamilton Watch Co.'s Research Director George Paul Luckey told the Horological Institute about the "time microscope," a device has contrived for making quick tests of a watch's accuracy. At split-second intervals a revolving reflector flashes a light on the watch's balance wheel at the centre of its backward & forward movement. If the balance wheel's speed is the same as the reflector's, the arm looks stationary (stroboscopic effect). Otherwise a double image appears and indicates that the watch must be readjusted. In a one-minute test...
...Stebbins began the work on Madison s hill. Last year he got a leave of absence, went out to California's Mt Wilson. To Mt. Wilson's 100-in. reflector he attached a photo-electric cell (which translates faint light into a current of electricity) and continued his studies of the brightness and color of stars. At Ann Arbor Mich, last month he was ready to tell the National Academy of Sciences that estimates of star distances from the earth must be revised from 10% to 200%. Other astronomers hailed his announcement as confirmation of their own researches...
Everyone knows that the setting sun looks red because man sees it through an earth-enveloping cloud of gas and dust With his cell and reflector Dr. Stebbins found the same apparent redness...