Word: sunlight
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...altitude of 560 miles in an orbit that carries it from pole to pole, IRAS roughly follows the line on the earth's surface where day meets night. Along this pathway, the telescope can always face 90° away from the sun, yet catch rays of sunlight on its solar panels to make electricity to power itself...
...discovery could potentially help counteract auto-immune diseases such as multiple sclerosis and arthritis, researchers announced last week. The cancer gene discovery is still being researched, and will not be applied to cancer patients for many years. Other research projects currently underway at the institute include a study of sunlight's effect as a carcinogenic agent, and an inquiry into cell-growth control...
...Petrified Forest National Park. The Prestons noticed some old Indian petroglyphs, the technical name for the spirals, crosses, lizards, birds and other rock carvings found throughout the Southwest. Anthropologists have tended to view them as little more than ancient graffiti, but the Prestons saw a message. As sunlight filtered between two large rocks, it formed dagger-like beams that swept tantalizingly across the petroglyphs. At once the Prestons suspected that the carvings might be a little solar observatory...
...area's former inhabitants, the Anasazi. For hundreds of years they lived in the canyon, creating astonishing multistoried cliff dwellings, only to vanish mysteriously at the start of the 14th century. Sofaer, visiting the site around the time of the summer solstice, noticed that a beam of sunlight sliced right through one large spiral...
...undercurrent of his work, as earnestly as possible. Hardly any Smith is more than ten feet high or wide. All the work responds willingly to nature. The stainless-steel planes of the Cubis, scribbled with stuttery, glittering lines by the rapid "drawing" of a power grinder, respond better to sunlight or starshine than to the static lighting of a museum. The high color and splashy textures with which he sometimes painted the steel were certainly meant to be seen against the colors of tree, snow or autumn grass...