Sentences with phrase «when electrical current»

For those unfamiliar, planar magnetic drivers use a polymer membrane stretched between two electromagnets to produce sound when electrical current is applied.

Electrical burns are caused primarily when an electrical current runs through the body.

An electrocatalyst, I should say, is simply a material that causes a chemical reaction to take place when an electrical current is introduced.

(charcoal, a form of carbon glows when an electrical current is applied to it) He originally settled on burnt cotton but this only gave about a 15 hours of light before burning out.

Originally, the glowing light of neon signs was generated when an electrical current was introduced to a glass tube filled with neon gas.

AIRSCARF uses a heating element made primarily of barium titanate, which heats up in a matter of seconds when electrical current is applied.

An organic light - emitting diode, or OLED, glows orange when electrical current flows through it.

Take electricity: When an electrical current flows in one wire, a mutual friction drags current in a nearby wire.

That contrasts sharply with other ephemeral events at similar altitudes, which glimmer into being when electrical current travels upward from lightning clouds at altitudes of about 10 km.

The window's opacity to visible light and solar energy varies when an electrical current flows between the oxide layers.

Their technologies depend on a phenomenon called electrochromism — the ability of certain chemicals to change colour when electrical currents are applied.

«When electrical currents are created in such a system of flows, they can cause a magnetic field which in turn increases the electrical current and so forth — and finally the magnetic field becomes so strong that we can measure it on the surface of Earth,» says Alessandro Toschi.

Not exact matches

A simple effect that scientists have known about since the 1950s, electro - vibration tricks your fingertips into sensing texture when you touch a layer of insulation encasing a metal surface that's conducting an alternating electrical current.

The basics: It can be charged with a DC or AC electrical current, and can fully charge in 50 minutes when hooked up to a DC current outputting 150 kW.

InfiniLED specializes in a technology called Inorganic LED Display, a variant of traditional LED technology that displays light when it absorbs an electrical current.

Each element is activated by an electrical current which, when applied, heats the ink in contact with the element.

When you compare the chop saw vs. miter saw you're going to see different electrical current outputs.

When driven with electrical current, electrons and positively charged holes become confined in the dots and recombine to emit light — a property that can be exploited to make lasers.

Superconductors are materials that, when chilled, allow electrical current to flow freely, with zero resistance.

Catania placed his arm in a tank with a 40 - centimeter - long electric eel (relatively small as eels go) and determined, in amperes, the electrical current that flowed into him when the eel struck.

A compound of hydrogen and sulfur, when crushed at more than a million times Earth's standard atmospheric pressure, appears to whisk electrical current along without resistance at temperatures up to 203 kelvins.

When the recipient operates the device, it applies a continuous electrical current — at varying frequencies and intensities — to specific regions in the lower spinal cord where there are dense bundles of nerves that control the hips, knees, ankles and toes.

When Joachim and Gimzewski moved the STM tip down, slightly flattening their buckyball, the molecule's electrical resistance dropped 100-fold, allowing the current to flow more easily from the STM tip to the metal surface.

Now, a pair of scientists based in France and Switzerland have discovered another odd fullerene property: They change the amount of electrical current they conduct when they are squeezed.

«Just as in regular electric generators, when moving magnetic fields cross long electrical conductors, electric currents will be generated.

They found that when a negative electrical potential is applied to skin on various parts of the arm, creating a current, that stretch of skin exhibits a low resistance to a subsequent current flowing through the skin.

Cohen Kadosh's team made headlines in 2010, when it showed that a different form of electrical jolt — transcranial direct - current stimulation (TDCS)-- helped volunteers to learn and remember a number system made up of unfamiliar symbols.

When superconducting materials are cooled, they can carry a current with zero electrical resistance without losing any energy.

When energy is added to the material, either by a laser «pump» or as an electrical current, it kicks some of the electrons orbiting the molecules into higher energy states.

PRAM is novel because it uses electrical current to store data in a glassy substance called chalcogenide, whose atoms are rearranged when it is heated.

Creating an electrical current with a gas is possible in part because when gas strikes an inclined surface, it produces a pressure gradient, similar to the effect that keeps airplanes in the air.

When a metal is in the presence of alternating magnetic fields (AMFs), electrical currents are produced on the metal, which generate heat.

First, he created 20 - centimetre - long flexible ribbons made of a piezoelectric polymer that generates electrical currents when perturbed, either by wind or when rain drops fall on it.

An even bigger puzzle is how the huge current of a lightning bolt ever begins to flow when air is an electrical insulator.

What most people care about when it comes to the electrical outlet is that the current flows.

When energized by electrical current, the bonded layer produces light that travels through channels in the silicon to a «modulator» that flickers the light tens of billions of times per second.

Memristors are electrical components that limit or regulate the flow of electrical current in a circuit and can remember the amount of charge that was flowing through it and retain the data, even when the power is turned off.

When the powerful electrical currents running through the LHC came to bear on that tiny piece of solder, the resulting heat set off a cascade of events, ending in a sudden release of helium that blew aside several of the collider's massive superconducting magnets.

The performance effects of tDCS only occurred when the tDCS electrodes used to deliver the electrical current were positioned in a particular way.

Most plasma cutters work best when the material being cut is a conductor, as the material can therefore complete the circuit and send the arc's electrical current back to the cutter device by means of a cable clamped to the target.

These defects were observed by measuring tiny electrical currents created when charges that were frozen in the traps at extremely cold temperatures escape by receiving a jolt of thermal energy as the device is heated, a process called thermally stimulated current.

But when light hits certain materials the energy turns into an electrical current instead, which we can then harness for power.

Batteries generate electrical current when ions pass from the negative terminal, or anode, to the positive terminal, or cathode, through an electrolyte.

When a direct current was applied to [10] CPP - I, the bulk resistivity of the sample became approximately 380 times lower, indicating that it conducted electricity rather than resisting electrical transmission.

Both effects serve to change the layer's electrical capacitance, and when incorporated into transistors, the changing capacitance brings about a detectable change in current.

Like astronomers tweaking images to gain a more detailed glimpse of distant stars, physicists at Brookhaven National Laboratory have found ways to sharpen images of the energy spectra in high - temperature superconductors â $» materials that carry electrical current effortlessly when cooled below a certain temperature.

In the past, researchers have focused on maximizing the electrical current flowing inside of the solar cell, rather than maximizing the number of photons emitted when light hits the surface of the cell.

When scraps of steel and brass are anodized using a common household chemical and residential electrical current, the researchers found that the metal surfaces are restructured into nanometer - sized networks of metal oxide that can store and release energy when reacting with a water - based liquid electrolWhen scraps of steel and brass are anodized using a common household chemical and residential electrical current, the researchers found that the metal surfaces are restructured into nanometer - sized networks of metal oxide that can store and release energy when reacting with a water - based liquid electrolwhen reacting with a water - based liquid electrolyte.

We have discovered a fascinating property with our Ink after reading a paper from China that showed that an electrical current is produced when sea water is made to flow over Graphene.

With intratumoral electroporation, tumor cell pores are opened when a mild electrical current is introduced directly through an electrode.