Word: plastics
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...nicknames, the rows of white coated technicians and microscopes and test tubes. When it had to decide which knife had cut through a copper screen, the F.B.I. placed filings from the different knives and from the screen in a burner and compared the spectra they gave off. It has plastic material for impressions of footprints and tire treads so nice that a plaster cast of a hand can be made to give accurate and serviceable fingerprints...
...Pittsburgh meeting of the American Chemical Society last September, Dr. Harry Robert Dittmar of the du Pont Research Laboratories described "Pontalite," a new plastic known chemically as methyl methacrylate polymer, as clear as optical glass, only half as heavy as common glass, flexible, non-shattering (TIME, Sept. 21). Last week du Pont scientists in Manhattan demonstrated that a pretzel shaped length of Pontalite could conduct light, carry it around bends as a cable carries electricity. A flashlight was held close to one end of the twisted plastic tube. The other end of the tube shone brightly...
Except for the great space-curvatures which Relativists say surround stars and suns, no conceivable agency or material could actually cause light to travel in a curve. The reason that du Font's plastic appears to do so is that the crystalline structure of the material refracts the light in a series of very short straight lines joined at slight angles, like bar links in a watch chain, so that the light stays inside the conductor until it reaches...
Although it has rarely if ever been done successfully, experts say it is possible for criminals to mutilate their fingerprints with acid or otherwise until recognition is dubious or impossible. Medical societies have been shown photographs of faces completely altered by plastic surgery. Year ago Dr. Carleton Simon, Manhattan criminologist, proposed an identification system based on the pattern of blood vessels in the eye, which is never the same in any two individuals (TIME, Dec. 16, 1935). A malefactor would not be able to beat this system, Dr. Simon pointed out, unless he blinded himself. Last week two Iowa State...
...twisting each into boughs. Many single wires are twisted for the bare branches of other trees. Hardwood trees. One man making figures of wax for the big model; leaves them naked. Musculature must be correct before they can be clothed. To a corner to examine the unfinished model. Its plastic terrain has been completed and part of the surface painted. Trees have been soldered and painted according to colored sketches. The background is in place. All very pretty and like a real forest. Even to the country dirt road and stone fence. S--shows me pictures of finished models...