Sentences with phrase «alternating currents»

Alternating Currents: American Art in the Age of Technology, Selections from the Permanent Collection of the Whitney Museum of American Art is currently on view at the San Jose Museum of Art.

Alternating Currents: American Art in the Age of Technology, Selections from the Permanent Collection of the Whitney Museum of American Art at the San Jose Museum of Art, 110 South Market St. through Oct. 18, 1998.

You'll remember Shonibare for his Victorian Philanthropist's Parlour, included on «Alternating Currents» at the 2nd Johannesburg Biennale.

He describes her sometimes fitful but extraordinarily long and prolific career and explores the many metamorphic aspects of the work to which the alternating currents of her imagination gave rise to.

If an artist works on alternating currents, then what are those currents?

The writing - directing team of Jon Lucas and Scott Moore work in alternating currents of coincidence and crisis.

These sorts of clocks keep time by counting the number of oscillations in the alternating current they receive, which also powers them; in other words, the number of times the flow of electricity changes directions every second.

SolarCity (SCTY) CTO Peter Rive told me at the event that the company will charge customers $ 5,000 for the 10 kWh unit, a price that includes installation and an inverter to convert direct current power to alternating current for use in the home.

Best known for his invention of the modern alternating current electricity supply system, Tesla exercised religiously.

The costs don't include installation or the inverter that converts direct current power to alternating current for use in the home.

Just as importantly, his work on the distribution of electricity led to the world's first power plant in New York City (though his technology choice, direct current (DC), was eventually surpassed by the alternating current approach (AC) championed by rival inventor, Nikola Tesla).

It led to the introduction of the electric chair, which Edison hoped people would associate with alternating current.

Instead of listening, Edison launched a fearmongering campaign to make people fear alternating current.

George Westinghouse and Nikola Tesla promoted alternating current.

And it became quickly obvious that alternating current was the superior technology — so much so that Edison's own staff begged him to adopt it.

A type of power inverter, the small, shiny box doesn't produce power itself, but instead changes direct current to alternating current, an essential process in electric car technology that lets battery power spin the car's motor.

(EIA reports installed electric capacity data in alternating current terms, which are typically 10 % to 30 % lower than the direct current capacities sometimes reported for PV systems.)

(Another connection: Nikola is named after Nikola Tesla, who among many other things is responsible for making alternating current dominant on the electric grid.)

More than 1,400 Ontario households may soon get an unexpected gift: the miracle of alternating current electricity, with which to heat their homes and roast their geese and snuggle up on the couch and watch The Muppet Christmas Carol.

An alternating current of victory and defeat for favorites appears to be the persistent theme of conference play as races gather momentum around the country.

As with magnets and alternating current, positively charged molecules never aim for one another.

An inverter converts direct current (DC) electricity into the alternating current (AC) used by the lights, appliances and devices in a home.

Mains electricity is alternating current supplied at a frequency of 50 or 60 cycles per second.

Thomas Edison was an early and eager advocate of electrocuting criminals using alternating current — the system promoted by his rival George Westinghouse.

The Eastern, Western, and Texas grids all carry alternating current, or AC, that jiggles back and forth in the wires 60 times a second.

In addition to applying direct current to the scalp, brain - hacking researchers and DIYers are experimenting with other methods including alternating current and random noise stimulation.

Applying an alternating current to this gate electrode sets up an oscillating electric field that surrounds the molecular motor and, according to the researchers» calculations, should cause the anthracene rotor to turn.

Generally, plants are not required to survive a simultaneous loss of outside and internal alternating current power («station blackout») and an earthquake, the NRC said.

When it flies into the magnetic field an alternating current (AC) voltage is induced in the receiving antenna and the drone's electronics convert it efficiently into a direct current (DC) voltage to power it.

The traction - drive system typically consists of a boost converter (which steps up voltage when the electronic circuit requires a higher operating voltage than the battery can provide alone), two inverters (which take direct current (DC) voltage and convert it to alternating current (AC)-RRB-, and electric motors to provide motive power (pdf).

They turned on an alternating current in the coil, creating an alternating magnetic field.

A device called an inverter turns this into alternating current (AC), which is fed to the motors underneath each car.

But applying a short 1 hertz alternating current to the solution set it going in a realistic way — without the need for any extra power — for up to an hour.

Further, he found the signature memristor effect: When he reversed the flow of electricity, as in an alternating current, the efficiency of the conductance increased, as if the microtubule had remembered the current that previously passed through it.

His designs advanced alternating current at the start of the electric age and allowed utilities to send current over vast distances, powering American homes across the country.

Using a resistor to convert electrical charge to alternating current, Krupenkin was able to harvest electrical energy from drops of either mercury or galinstan, a gallium - based alloy as they were moved along these channels and over the electrodes.

It is more efficient to transmit electricity over long distances in the form of DC, rather than alternating current.

But Bandyopadhyay found something very different when he applied specific charges of alternating current.

In addition, the electrical contacts industry, which now uses alternating current in devices, might finally be able to turn to direct current devices as higher performance alternatives.

Changes in the atoms» spin rate correspond to an oscillation in the DC magnetic fields, creating alternating current (AC) electronic signals, or voltages at the light detector, which are more useful for communications.

Current treatment methods used are transcranial direct current simulation (tDCS)-- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)-- which sees a constant electrical current flow back and forth.

The second, also a major challenge, requires lowering the costs and raising the performance of the electronics that convert direct current from photovoltaic solar power to alternating current used on the grid.

Together with colleagues from Chalmers University of Technology and the company Borealis in Sweden, he has found a powerful method for reducing energy losses in alternating current cables.

The researchers will also test the method in high - voltage cables for direct current, since direct current is more efficient than alternating current for power transmission over very long distances.

Although direct - current lines are highly efficient, the equipment that converts alternating current into direct current and back again is not, so the advantage accrues on long spans — such as those from the windy high plains and the sunny Southwest.

The problem is that batteries put out not alternating current but steady, unchanging direct current.

A power inverter can make the conversion to AC, but a typical inverter with the required capabilities contains about 300 pounds of material: a computer to change the frequency of alternating current as motor speed changes, massive switches, and cooling equipment to dissipate the heat generated by the heavy current.

To further decrease losses, some long stretches would use direct current, instead of the usual alternating current that most of the system — and virtually all households and businesses — run on.

To see whether they could induce lucid dreams by triggering certain brainwaves, her team turned to transcranial alternating current stimulation.

These could include new measures to extend plant protection when outside and backup alternating current power and new instrumentation to monitor conditions in spent fuel pools in emergencies.