A worrisome national surge in multiple births linked to test-tube technology is easing, largely because doctors are implanting fewer embryos during each attempt to make a woman pregnant, a study ...

Del High Voltage, a member company of the Del Power Conversion Group (Valhalla, NY; www.delhv.com) has custom designed a high-frequency power supply that enables an x-ray tube manufacturer to test ...

Multiple unsinkable metal tubes linked together in a raft formation could be the basis for the ships, buoys, and floating platforms of the future. (J. Adam Fenster / University of Rochester via SWNS) ...