Word: sunlights
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...first headaches, bargain hunters in the slave markets of Rome submitted prospective purchases to a trial as nerve-racking as watching a badly adjusted picture tube. Before a slave was bought and paid for, he was forced to stare at a potter's wheel rotating rapidly in bright sunlight. If the flicker caused the slave to keel over, the deal was off. Seizures before the spinning potter's wheel were taken as a sign of "the falling sickness," the Roman name for epilepsy...
...palace that Architects Benjamin Brown and Spero Daltas designed for the Shah's younger sister, Fatemeh, is walled in travertine, teakwood and glass, and alive with water and sunlight. But the most striking feature is the roof. Columns formed by eight 2-in. steel tubes rise and fan out to support octagonal canopies of glazed brick, interspersed here and there with clear glass skylights...
When she comes out into the sunlight again, he gives her his gift, his drawing...
...isolated chloroplasts from spinach leaves, Dr. Arnon and his colleagues found that they could study the role of light without being bothered by the other chemical processes that take place in the normal plant cell. After tedious experiment, they decided that when green plant pigment (chlorophyll) is struck by sunlight its molecules become so excited that they shake loose some electrons. And those electrons eventually help to form some of the basic chemical substances necessary for photosynthesis...
...world, other researchers are designing experiments to exploit this new knowledge of photosynthesis. Drs. Arnon and Tagawa have already been able to recognize a striking similarity between photosynthesis in plants and chemical processes that are carried on by certain bacteria that live in the soil, cut off from both sunlight and oxygen. The discovery, says Dr. Arnon, demonstrates "the beautiful biochemical unity of nature...