Standards for inspection and test of electrical equipment for use in hazardous locations have been developed by the Underwriters' Laboratories. As the result of extensive research, considerable ...

Less than two weeks later, on June 25, reports began to circulate of a second nova blossoming in the southern night sky, this time in the constellation Vela. This nova — later designated V572 Velorum ...

Light exposure at night may disrupt our body's internal clocks, or circadian rhythms, that keep physiological processes ...