Word: electromagneticism
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
CAN POWER LINES CAUSE CANCER? Numerous reports in the popular press have blared out warnings. Frightened citizens have abandoned homes located close to high-tension wires; others have gone to court to keep the lines away. The reason for the hysteria: a growing number of scientific studies suggest that the...
Until now the studies have been ambiguous. Some have found an association with brain cancer but not leukemia in children. Others have detected just the opposite. In addition, the link to cancer appears stronger when the electromagnetic field is estimated by researchers and disappears when it is measured by instruments...
This fog may finally start to clear because of two studies done in Sweden. The first, led by epidemiologists Maria Feychting and Anders Ahlbom of Stockholm's Karolinska Institute, looked at everyone who lived within 300 m (328 yd.) of a high-tension line in Sweden from 1960 to '85...
For starters, rockets will go the way of the dinosaurs. Future spacefarers will look back on the notion of sending people (or anything precious) aloft on huge, lumbering towers of flame and smoke as primitive, brutal and notoriously unreliable. Before the next millennium is very far along, humans will get...
Probes and people would sally forth into the deeper universe, propelled by thin sails filled by the feeble but inexorable pressure of sunlight or traveling on ion drives that get their boost by shooting high-energy electrified particles out of the rear of the vehicle. Other possible vehicles for space...