Sentences with phrase «use of electromagnetic waves»

Some parents wonder if there are health risks to the baby with the use of electromagnetic waves to transmit sound and video.

Not exact matches

Scans of the sky using visible light, X-rays, and electromagnetic waves have been insufficient, says astrophysicist and LIGO data analyst Vicky Kalogera, because they only provide circumstantial evidence of how black holes warp the light and space near them.

Some people believe that the electromagnetic waves used in digital monitors can cause health issues in babies who are at a delicate stage of development.

This research has mostly involved the use of metamaterials, which are extremely thin composites that bend electromagnetic waves in a way that negatively refracts lights.

Rather than dangerous X-rays, however, the chip beams out waves in the harmless terahertz frequency, a little - used portion of the electromagnetic spectrum between microwaves and far - infrared.

The researchers observed FRB 150807 while monitoring a nearby pulsar — a rotating neutron star that emits a beam of radio waves and other electromagnetic radiation — in our galaxy using the Parkes radio telescope in Australia.

«We achieved two goals with this project: First, we showed that we can use the science of topology to facilitate robust electromagnetic - wave propagation in electronics and circuit components.

In their study, published in the May issue of the journal, Nature Communications, Professor Eunmi Choi of Natural Science and her team demonstrated a method with higher sensitivity that uses high - power pulsed electromagnetic - waves to detect a radioactive source.

Atomic clocks use precisely tuned electromagnetic waves to track the vibrations of atoms.

In spite of the recent detection of gravitational waves from binary black holes by LIGO, direct evidence using electromagnetic waves remains elusive and astronomers are searching for it with radio telescopes.

Researchers have developed a way to use commercial inkjet printers and readily available ink to print hidden images that are only visible when illuminated with appropriately polarized waves in the terahertz region of the electromagnetic spectrum.

Using Jarzynski and Crooks» formulation, he derived a generalization of the second law of thermodynamics that holds for systems of particles with certain characteristics: The systems are strongly driven by an external energy source such as an electromagnetic wave, and they can dump heat into a surrounding bath.

The development is timely: while the latest wireless communications use electromagnetic waves with a frequency of over 100 gigahertz, the best wave absorbers commercially available are effective only up to around half that.

Together with Masao Kotani of the University of Tokyo, he developed a theory of magnetrons — devices used in radar systems for generating electromagnetic waves — for the navy.

Individual cases of these kinds of attacks have already been documented: thieves used electromagnetic waves to crack the security systems of limousines in Berlin.

When two neutron stars collided on Aug. 17, a widespread search for electromagnetic radiation from the event led to observations of light from the afterglow of the explosion, finally connecting a gravitational - wave - producing event with conventional astronomy using light, according to an international team of astronomers.

In their study, published in the May issue of the prestigious journal, Nature Communications, Professor Eunmi Choi of Natural Science and her team demonstrated a method with higher sensitivity that uses high - power pulsed electromagnetic - waves to detect a radioactive source.

And this allows them to do something new: to tell their astronomer colleagues roughly where to look in the sky, using ordinary telescopes, for some form of electromagnetic waves (perhaps visible light, gamma rays, or radio waves) that might have been produced by whatever created the gravitational waves.

«The game to see the light from these catastrophic mergers is on,» says Mansi Kasliwal, assistant professor of astronomy and the leader of the Caltech effort to search for electromagnetic emission from gravitational waves using the intermediate Palomar Transient Factory, a robotic survey for astrophysical transients (brief, intense flashes of light), and a network of other telescopes.

One possibility for communicating across the vast distances of space is the use of radio or other electromagnetic waves.

Since the Warsaw physicists were facing a seemingly impossible task, they attempted to tackle the issue differently: rather than using classical interference of electromagnetic waves, they tried to register quantum interference in which the wave functions of photons interact.

Electromagnetic fields, or EMFs, are invisible waves of force that are emitted any time electricity is generated or used.

4.6.2.4 - Uses and applications of electromagnetic waves (P6.8 lesson) Paper 2 topic 3 (4.7 - Magnetism and electromagnetism) 4.7.1.1 - Poles of a magnet (P7.1 lesson) 4.7.1.2 - Magnetic fields (P7.1 lesson) 4.7.2.1 — Electromagnetism (P7.2 lesson) 4.7.2.2 - Fleming's left - hand rule (HT only)(P7.3 lesson) 4.7.2.3 - Electric motors (HT only)(P7.3 lesson)

Ultra Despair Girls does away with the murder mysteries and class trials that the series is best known for, and instead opts to hand Komaru Naegi — little sister of the first game's protagonist — a hacking gun that shoots out computer code using electromagnetic waves to take down an army of robotic Monokumas (the evil black and white bear) in more of a third - person shooter style.

Defeat enemies across a range of stunning environments using a wide variety of vehicles and weapons, from dispersing electromagnetic shock waves to the deployment of a huge Gatling gun armed to the teeth.

From communication to transportation (of people, goods, and messages), from design to production, from political economy and capital regimes, our contemporary societies are guided by codes written in programming languages that use electromagnetic waves and computers.

In The Fence (Lake Kickapoo, Texas)(2010) Paglen worked with a radio astronomer to map a vast and extremely powerful radar system surrounding the United States used to detect ballistic missiles, and made of electromagnetic waves invisible to the naked eye.

As you might guess from my description, this was a difference that flowed from difference between the technical use of «radio communication», meaning anything using electromagnetic waves, and the metaphorical use, meaning the technology of the day.

The SAR (Specific Absorption Rate) for mobile phones quantifies the maximum exposure level of the users to the electromagnetic waves, for use at the ear.

X-ray is the use of electromagnetic radiation waves to get the images of the insides of objects.