Sentences with phrase «by radio waves»

[4] Section 2 of the Broadcasting Act defines «broadcasting» as «any transmission of programs... by radio waves or other means of telecommunication for reception by the public».

When stimulated by radio waves, the elements emit distinctive signals in a magnetic field.

Astronomers need to know how much of their astronomical data has been contaminated by radio waves given off by air molecules, the telescope's own electronics, and other sources of interference.

Both could be programmed by radio waves, and both could send data back out to us by radio waves.»

Zapped by radio waves, hydrogen atoms lose their electrons and are transformed into a plasma as hot as the sun.

Such tags, costing just a few cents, carry a small, non-powered chip that, when hit by radio waves from a nearby «reader,» converts some of the radio energy into its own radio pulse in return.

Not exact matches

Soundpays, a mobile wallet powered by sound waves, enables you to make instant purchases on your mobile device while browsing in - store, shopping online, viewing an infomercial, or even listening to the radio.

The difference is that Travelers is «wired» by infrared light, a medium that (along with radio waves) is already freeing office networks from the physical bondage of coaxial cable — and the fiscal pain of leaving it behind if you move.

Financial News reports that Vigilant Global, a telecoms company owned by high - frequency trading firm DRW Trading, has submitted plans to build a 320 - metre tall tower to allow what it calls «a new communications point between the UK and Europe» which will have a «completely unobstructed» line of sight both optically, and for radio waves.

Some people wear tin foil hats to protect them from mind control radio waves they believe are being broadcast by CIA satellites.

They take every opportunity to brag about Fox News's ratings and how conservatives dominate the radio waves but the second anyone points out something stupid or offensive said by one of the right's propaganda bullies, they scream «mainstream media bias» and «left wing conspiracy».

Radio waves can be produced by a variety of natural and «intelligent» processes.

Karen DeWitt, a public radio correspondent, asked the Democratic politician what the state «could do differently» amid a wave of allegations of sexual harassment and assault against prominent men in media and politics — including a former senior official appointed by Cuomo.

By the time those radio waves reached us, some 13 billion years later, the universe would have expanded by factor of 1By the time those radio waves reached us, some 13 billion years later, the universe would have expanded by factor of 1by factor of 10.

The bubbles can be fashioned by applying radio waves of the right frequency to a BEC, Lundblad explains, and at first, researchers hope to simply jiggle the bubbles and see how they react.

And they have also observed Jupiter's gravity deflecting radio waves passing by the planet.

(In this case, a peak in the audio wave is represented by an increase in the frequency of the radio wave, while a trough is represented as a decrease in frequency.)

Inspired by his own bout of leukemia to try to find a better cancer treatment, retired broadcasting station owner Kanzius guessed that as an alternative to chemotherapy, he could inject tumors with metal ions, then use radio waves to heat the metal and destroy cancerous cells.

The idea is to twist radio waves like corkscrews and create multiple subfrequencies, distinguished by their degree of twistedness.

Its size and distance from Earth were unveiled by mapping radio waves emitted from hydrogen gas (www.arxiv.org/abs/0906.0616).

Reginald Fessenden, a Canadian autodidact, invented a way to transmit voice and music by altering the intensity of waves — called amplitude modulation — thus creating AM radio.

The electrons or radio waves that are sent directly from your own computer usually don't get far — a few hundred feet at most — before being digested by another computer.

MESSENGER's maps of polar craters match up nicely with earlier imagery of the poles, taken by Earth - based radars, which showed anomalously bright features — patches that reflected radio waves much better than the surrounding terrain, just as ice does.

The observatory includes three radio telescopes for Very Long Baseline Interferometry (VLBI), which receive radio waves emitted by quasars.

This image shows the supernova debris shell, expanded greatly over the millennia, will a telltale spiral structure caused by the wobbling jets striking the inside of the shell and causing radio waves to be emitted.

They are detected from Earth by the beams of radio waves that emanate from their magnetic poles and sweep across space as the pulsar rotates.

«By light we mean electromagnetic fields: radio waves, microwaves, or light.

Among the more unique data sets collected by Juno during its first scientific sweep by Jupiter was that acquired by the mission's Radio / Plasma Wave Experiment (Waves), which recorded ghostly - sounding transmissions emanating from above the planet.

Radio waves emitted by cool hydrogen (third inset) trace a pool of gas left behind by the explosion and merger.

Pulsar timing arrays (PTAs) monitor the arrival times of radio pulses from numerous pulsars to search for shifts caused by passing long - wavelength gravitational waves.

For astronomers who observe the universe through radio waves generated by stars and galaxies, interference from an Earth - based source can easily drown out any far - off signal.

Power will be supplied by an external source that beams radio waves through the skin and skull.

At first, unexpected patterns of radio waves seen by ANITA were dismissed as noise.

Wi - Gig requires higher radio wave frequencies, though: 60 gigahertz rather than the 2.4 GHz used by Wi - Fi.

CH3OH is normally produced on the surface of dust, but when the temperature increases by some process, it will be released from the dust surface and turn into gas which emits radio waves.

The choice to look at insulin production was driven by the equipment they used to generate the radio waves and magnetic fields.

Over time, that light's wavelength was stretched to several meters by the expansion of the universe, before being detected on Earth as radio waves.

The X-ray data show hot gas and the radio data show emission from electrons that have been accelerated to high energies by the nova shock wave.

If A affects B without being right next to it, then the effect in question must be indirect — the effect in question must be something that gets transmitted by means of a chain of events in which each event brings about the next one directly, in a manner that smoothly spans the distance from A to B. Every time we think we can come up with an exception to this intuition — say, flipping a switch that turns on city street lights (but then we realize that this happens through wires) or listening to a BBC radio broadcast (but then we realize that radio waves propagate through the air)-- it turns out that we have not, in fact, thought of an exception.

They detected the absorption of radio waves by gas clouds in front of bright radio sources.

The radio waves emitted by cellphones are reflected back to them in unique ways by hands — allowing gestures to be recognised.

I borrowed one that could detect signals from 100 kilohertz (kHz), just below the frequency of long - wave radio stations, up to 3 gigahertz (GHz), somewhat above the 2.4 GHz portion of the spectrum used by Wi - Fi connections (see «Radio Ways,» beradio stations, up to 3 gigahertz (GHz), somewhat above the 2.4 GHz portion of the spectrum used by Wi - Fi connections (see «Radio Ways,» beRadio Ways,» below).

Molecules in the intervening gas clouds absorb radio waves at specific frequencies determined by the type of molecules.

Defense contractor Lockheed Martin will soon flight - test a plasma antenna (encased in a tough, nonconducting polymer) that is designed to be immune from detection by radar even as it transmits and receives low - frequency radio waves.

Astronomers exploit it to combine light or radio waves collected by widely separated telescopes so that they act as a single huge instrument, as large as the distance between the two of them.

Eatough's team realised that the strong bursts of radio waves emitted by the pulsar would be rotated by the black hole's magnetic field, and so could be used to measure the strength of the field.

Most SETI researchers look for signals sent by sentient beings in radio waves, because these waves traverse galaxies without interference from gas and dust.

Now Harmon has carried out a new radar survey of Mercury, which shows that the areas which strongly reflect radio waves match closely the positions of polar craters photographed by Mariner 10, the American spacecraft which flew past Mercury in 1974 and 1975.

Astronomers have produced a highly detailed image of the Crab Nebula, by combining data from telescopes spanning nearly the entire breadth of the electromagnetic spectrum, from radio waves seen by the Karl G. Jansky Very Large Array (VLA) to the powerful X-ray glow as seen by the orbiting Chandra X-ray Observatory.

These bursts of radio waves have remained a mystery since the first one was discovered in 2007 by researchers scouring archived data from Australia's Parkes Radio Telescope in search of new pulradio waves have remained a mystery since the first one was discovered in 2007 by researchers scouring archived data from Australia's Parkes Radio Telescope in search of new pulRadio Telescope in search of new pulsars.