Word: experimentals
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Dates: during 1960-1969
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Surveyor had serious reasons for its frisky behavior. Rotating a series of color filters in front of its TV camera, it shot pictures of the soil scattered on its white footpad-which made an ideal photographic background. Scientists will compare the shade of the soil in black and white pictures...
Their neighborhood--predominantly Negro Bedford-Stuyvesant--is to be the staging area for a comprehensive and costly experiment in community renovation. The idea is for government and private enterprise to sit down with the community to help solve the problem that residents want solved. The prospects: massive housing rehabilitation, more...
EXPERIMENT IN TELEVISION (NBC, 4-5 p.m.). Author George Plimpton (The Paper Lion) hosts "Movies in the Now Generation," eight short films made by students in England, Poland, Belgium and the U.S.
The Harvard scientists devised their experiment on the premise that the lactose must have prevented the represser from turning off the appropriate gene -probably because it was attracted by the represser and combined with it chemically. With a sophisticated technique, they allowed radioactive lactose-like molecules that served as tracers...
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...