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When possible, be sure to either point your x-ray beams down to the earth or up in the air: anywhere where it is unlikely to be intercepted by an animal or human. NEVER power up an x-ray tube in a shared residence or an apartment without full knowledge that the radiation will be co...
The crystal filter’s piezoelectric crystal is cut and shaped in a certain way to generate a resonant frequency. The crystal is connected to a circuit to vibrate at its resonance frequency when an electrical current passes through it. When a radio frequency signal is added to an incoming radio...
You may not believe in astrology, but there's no question the planets rule our lives. We get up when the Sun rises (or some time after) and go to bed when it sets. We have a calendar based on days, months, and years—periods of time that relate to how the Moon and Earth move ...
Spintronics in halide perovskites has drawn significant attention in recent years, due to their highly tunable spin-orbit fields and intriguing interplay with lattice symmetry. Here, we perform first-principles calculations to determine the spin relaxati
The variation from the resonant frequency of a crystal is minimal at room temperature. However, as the temperature changes towards the extremes, the variation from the nominal frequency starts to increase and can go as high as a few tenths of ppm. This is acceptable for applications like comput...
Ambient levels of nonionizing electromagnetic fields (EMF) have risen sharply in the last five decades to become a ubiquitous, continuous, biologically active environmental pollutant, even in rural and remote areas. Many species of flora and fauna, becau
the challenges of relating to and caring for her mother, her children coming into their own lives with their own attendant trials. And always, her house is somewhere they return. That her home is so resonant as a sanctuary is in large part because of everything going on outsi...
Haptics has been traditionally dominated by off balance motors and linear resonant actuators, both based on electromagnetic technology. Recently, piezoelectric actuators have become an appealing alternative thanks to higher energy efficiency, higher bandwidth, solid state technology, and control authority. ...
“That wall’s blank, you know. I’ve been climbing here for years. No one’s found a climbable route yet.” I didn’t recognize the high, resonant voice. “My partner flaked out on me. I have his shoes and harness. He’s a hefty guy too. There’s a great route just down the...