Sentences with phrase «frequency waves as»

Doppler Effect stated that the frequency a wave as perceived by an observer changes depending on the relative velocity of the object producing that wave.

Not exact matches

AT&T and Verizon are conducting trials to offer super-fast Internet and video service to homes and businesses using the high frequency bands, also known as the millimeter wave bands.

Using the 15 GHz and 28 GHz bands, the high frequencies known as millimeter wave, the signals in the test can transmit a large volume of information but don't travel as far or penetrate obstructions as easily as lower frequencies.

Biofeedback utilizes various instruments that measure bodily changes such as muscular tension, blood pressure, brain wave frequencies, skin temperature, and heart rate.

The difference between positive and negative electricity, or between high and low frequency waves, may seem, and in nature may be, partly qualitative; but physics as a theory of nature takes into account only the spatio - temporal aspects or consequences of such qualities, whatever the latter may be.

Putting food on the table is an obvious highlight point of the day for someone like myself and no doubt someone like you as well if you find yourself here with frequency (waves hi).

A transducer sends high - frequency sound waves into the body; as the sound waves bounce off organs and structures, they produce electrical signals that are converted into images.

But just as scientists use radio and gamma - ray telescopes to probe different frequencies of light, physicists are building detectors sensitive to a range of gravity wave frequencies.

(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.)

The number of wave crests arriving from Fast Radio Bursts per second — their «frequency» — is in the same range as that of radio signals.

The number of times per second that the atoms shift back and forth defines the wave's frequency, experienced by the human eardrum and brain as pitch.

«You can tune the wave with a given frequency as you normally do, but there is also a fingerprint left by the twist,» Tamburini says.

It will also pick up lower frequency waves, showing us a different set of objects, such as pairs of supermassive black holes.

Global warming is causing not only a general increase in temperatures, but also an increase in the frequency and intensity of extreme weather events, such as flooding, heat waves and droughts.

And just as stars, supernova explosions, and the Big Bang's fading glow all give off different frequencies of light, they also send out different frequencies of gravitational waves.

These waves, known as surface - gravity waves, do not travel nearly as fast, far, or deep as acoustic - gravity waves, yet under the right conditions, they can generate the powerful, fast - moving, and low - frequency sound waves.

High - frequency sound can kill microscopic pathogens, but the sound waves normally need to travel through a contact medium such as water or gel, limiting the use of ultrasound as a germicide.

«We saw strong changes in the electromagnetic wave frequency while they were interacting with the electrons and strong changes in the electrons» activity as well,» Konstantinov said.

As a result, even though several airports already rely on a type of terahertz security scanners, they typically use low - frequency, continuous - wave energy at a single terahertz frequency, which enables them to create images of items carried in suitcases and pockets but not a spectral signature of those items that would indicate their composition.

Combining observations of X-ray flares with those of gravitational waves emitted by the stars as they spiral together could fix the exact frequency at which the shattering occurs, which would reveal more about the stars» mysterious interiors, says Tsang.

Scientists measuring brain activity have found that in many regions, such as the sensory or motor cortex, activity sometimes oscillates at different frequencies, forming wave - like patterns.

Kathmandu's basin of soft sediments helped amplify low - frequency waves, as seen in its destructive effect on taller buildings, says Youssef Hashash, an earthquake engineer at the University of Illinois, Urbana - Champaign, and the lead author of a report published last week that documented the quake's damage to infrastructure.

The signal — a dip in the intensity of radio waves across certain frequencies — was more than twice as strong as expected.

Some of the most exotic objects in physics, such as evaporating black holes, cosmic strings and even possible extra dimensions, would induce gravitational waves at much higher frequencies than we can currently detect.

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.

Frustratingly for the Virgo team, the steel wires are expected to have the most impact on sensitivity to gravitational waves with lower frequencies than neutron star mergers, such as those from the mergers of black holes.

Vyssotski found that when the birds flew over landmarks, such as a familiar highway, high - frequency brain waves suddenly got more intense.

Atoms in the windows naturally vibrate at the same frequency as waves of infrared energy, forming a barrier that prevents the heat from escaping.

The entorhinal cortex uses fast gamma waves, which have a frequency of about 80 Hz (about the same frequency as a bass E note played on a piano).

Just a few days later, on Sept. 5, members of the Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) team made an audio recording of radio waves in the belts, at a frequency audible to humans, known as «chorus.»

The waves in the magnetic field used by the HST researchers have the same frequency range as radio waves (between 350 and 400 kilohertz).

More recently, seamen and engineers alike have dismissed them as easily explainable: If you know the speed and direction of the wind, if you know the distance over which it has been blowing and the depth of the water, you can predict the height, length, speed, and even the frequency of any wave.

It implies that waves whose frequencies are not in simple ratios produce an unpleasant buzzing noise known as «beats».

As the pulses approached Earth, the ultralow frequency waves made the planet's magnetic field lines oscillate and accelerated electrons traveling along the field lines to extraordinarily high speeds.

Just as the quartz crystal in a Swiss watch keeps time by vibrating at a steady frequency (about 32,000 cycles per second), the maser coaxes a supply of specially selected hydrogen atoms to emit radio waves at an unwavering 1.42 billion cycles per second.

Infrasonic waves, with frequencies much lower than an audible voice, can be generated by sources as diverse as volcanoes, earthquakes, rocket launches and meteor air blasts.

Information travels as waves, defined by their frequencies and wavelengths, and right now everything operates below frequencies of 5 gigahertz.

Thus it addresses a spectrum not covered by experiments such as the Laser Interferometer Gravitational - Wave Observatory, which searches for lower - frequency waves to detect massive cosmic events such as colliding black holes and merging neutron stars.

Since the 1930s, scientists have known that high - frequency sound waves can push particles through liquid, so the right noise might shove them against the sides of a filter as they drift around randomly, allowing the filter to catch them.

That network will enable real - time testing of new communication protocols as well as critical measurements for the challenging problem of steering multiple signal beams at millimeter - wave frequencies.

«Our concept is to specifically design a way to turn low - frequency motion, such as human movement or ocean waves, into electricity,» said Qing Wang, professor of materials science and engineering, Penn State.

So for years, physicists have chased an elusive dream: replacing the physical kilogram with a standard inherent in properties of nature such as the speed of light, the wavelength of photons and the Planck constant (also called h - bar), which links the energy a wave carries with its frequency of oscillation.

The ability to block electromagnetic (EM) waves comes about when a material's magnetic field resonates at the same frequency as the wave.

Volcanic explosions can produce these low - frequency acoustic waves, as well as events such as meteors entering Earth's atmosphere, and even chemical or nuclear explosions.

Their analysis reveals that linear, stochastic scattering by intense, natural very low - frequency radio waves — known as chorus waves — in Earth's upper atmosphere can account for the observed relativistic electron build - up.

According to quantum mechanics, particles, including neutrinos, can also be thought of as waves, and the frequency of these waves depends on the particles» masses.

The sound wave originates from the vibrating object, such as a vocal chord, and travels through the medium (such as air) causing all of the air particles to vibrate at the frequency of the vocal chord.

The challenge has centered on the impossibility of manipulating light with the techniques that work so well for electromagnetic waves of much lower frequencies, such as microwaves.

These air particles subsequently bump against air particles next to them and so forth, so the wave travels from air particle to air particle — all at the same frequency as the vibration of the violin string.

These electrons oscillate at the same frequency as the incident light, which gives rise to the reflected wave.