Articles tagged with Electric Current
Researchers at Cornell University have developed a method to switch the orientation of magnetic domains in thin layers, allowing for the creation of high-density computer memory chips. The effect works by passing an electric current through a 'sandwich' of cobalt and copper layers, resulting in non-parallel magnetic moments.
MIT researchers have created a sensory tabletop that can track hand movements in three dimensions, allowing for new interactive technologies. The table uses electrodes to detect tiny currents generated by the user's hand, which are then used to calculate the hand's position in 3D space.
The NASA Explorer MIDEX Program has selected the Auroral Multiscale Midex Mission (AMM) for a feasibility study. The mission aims to study the interaction between Earth's atmosphere and its nearby space environment, with a focus on understanding auroral phenomena.
Researchers at NASA's Marshall Space Flight Center aim to demonstrate a propellant-free propulsion system using a tether system similar to those used on earlier SEDS missions. The ProSEDS flight could enable shorter tethers for propulsion or electrical power generation, and even de-orbit satellites with minimal cost and weight.
Researchers propose that intense magnetic fields from lightning can induce fatal electrical currents within the body, leading to unexplained heart malfunctions in high-altitude areas. The study, published in Lancet, suggests a new route for lightning-related injuries and deaths.
Researchers found that at high temperatures, a phenomenon called the surface barrier slows down columns of dynamic magnetic fields, allowing current to flow along the edge. This discovery throws new light on superconductor properties and may lead to advanced materials with improved properties.
Researchers found that R-type channels control transmitter release in presynaptic terminals, contributing to fine-tuning synaptic activity. These high-voltage-activated channels are resistant to known blockers and have been identified through simultaneous recordings of Ca2+ influx and EPSC evoked by a single action potential.
Cornell University scientists demonstrate a concept that could be used in ultra-small electronic devices by isolating a single oxygen molecule and causing it to rotate on command. The experiment provided basic research information about the nature of the chemical bond formed when an oxygen molecule is adsorbed to a platinum surface.
Researchers at Georgia Tech developed a new type of microrelay that can switch large current loads at five volts, setting records for contact resistance and current handling capability. The devices offer cost advantages due to batch production and standard microelectronics processing.
Researchers at Columbia University and IBM used X-rays to measure changes in atomic structure as electric current flowed through tiny wires. They found large stresses of up to 50,000 pounds per square inch, which can damage wires and their insulation.