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...Engineers Victor F. Zackay and Earl R. Parker, the new alloy is called TRIP (for transformation-induced plasticity) steel. In effect, it can be stretched like Silly Putty or molten glass 2½ to 4½ times as far as present-day high-strength steel without fracturing its molecular structure. More important, when TRIP steel eventually reaches the point of crack-inducing stress, a solid-state chemical reaction is triggered that blunts small cracks just as they begin, then fills them in to prevent major wounds. The chemical change precipitating this "self-healing" process takes place on a near-atomic...

Author: /time Magazine | Title: Metallurgy: Self-Healing Steel | 8/18/1967 | See Source »

...royal-court jeweler, the archaeologist collected minerals found in Scandinavia whose molecules are all aligned parallel to each other, just as the crystals are in a Polaroid filter. Ramskou found that one of these minerals, a transparent crystal called cordierite, turned from yellow to dark blue whenever its natural molecular alignment was held at right angles to the plane of polarized light from the sun. Thus, he reasoned, a Viking could have located the sun by rotating a chunk of cordierite until it turned dark blue...

Author: /time Magazine | Title: Navigation: Magical Stones of the Sun | 7/14/1967 | See Source »

...Austro-Hungarian empire, grew up in New York's Lower East Side and went on from a Ph.D. at Columbia University to become one of the nation's pioneer nuclear researchers, ended 37 years of teaching at Columbia. A 1944 Nobel prizewinner, Rabi developed the molecular-beam magnetic-resonance theories that laid the foundation for microwave radar, lasers, masers and modern radio astronomy. He was a consultant to the Manhattan Project that built the first atom bomb, and was one of the men responsible for creating the famed Brookhaven National Laboratory. Rabi also helped make Columbia...

Author: /time Magazine | Title: Science: Time to Leave the House | 5/26/1967 | See Source »

Bursting Bacteria. In an equally complex experiment with the same type of bacteria cells, Harvard Molecular Biologist Mark Ptashne discovered a second represser - a smaller protein molecule that prevents the bacteria from bursting when they are attacked by viruses. Ptashne's experiment also indicated that the represser turned off the appropriate cell genes by binding itself tightly to them, somehow preventing the production of an enzyme in the process...

Author: /time Magazine | Title: Genetics: Turned-Off Genes | 4/28/1967 | See Source »

...Faculty of Arts and Sciences unanimously approved the creation of the Department of Biochemistry and Molecular Biology at its meeting yesterday...

Author: NO WRITER ATTRIBUTED | Title: Faculty Approves Biochemistry Dept. | 4/12/1967 | See Source »

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