Sentences with phrase «electromagnetic waves with»

The 12 - Meter Telescope allows astronomers to observe what scientists call «millimeter waves,» electromagnetic waves with wavelengths of just a few millimeters.

(By the way, it turned out that X-rays aren't the electromagnetic waves with the shortest wavelengths — gamma rays can be even shorter.

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.

The piece of work referred to above proposes various compact devices comprising rectangular metal tubes with extremely narrow openings of dimensions designed in such a way that they are capable of redirecting the electromagnetic waves with levels of efficiency close to 100 %.

Scientists * have proposed various devices capable of redirecting electromagnetic waves with efficiency levels close to 100 %.

For more than a decade, scientists have been manipulating electromagnetic waves with metamaterials — assemblages of conductors and insulators patterned at length scales shorter than the waves themselves.

electromagnetic wave with a wavelength between 1 millimeter and 30,000 meters, or a frequency between 10 kilohertz and 300,000 megahertz.

Not exact matches

There are many different types of changes in an ambient environment — some very fast like electromagnetic waves, some very slow like the accumulation of pollutants in the air, and some with rapid onsets and offsets but long durations like rainfall.

Although the work is done in the context of a more general problem — the effect of environmental electromagnetic fields upon cellular functions — Adey is also concerned with the question of how brain waves might play a role in normal brain function.

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

Babymoov Digital Monitor Expert Care, # 79.99 This monitor is powered by Digital Green, a new technology combining digital technology with low power emission levels, to protect your baby from electromagnetic waves.

These records have raised hopes that, for the first time, scientists may have glimpsed electromagnetic radiation — light — produced in tandem with gravitational waves.

Gravitational waves provide us with complementary information from objects which are very hard to study using only electromagnetic waves.

This was the first time any astronomical object had been seen with both gravitational waves and electromagnetic waves.

In other words, the importance of this work is in illuminating the fundamental workings of the brain - scientists can now splash away with their own self - generated electromagnetic waves and learn a great deal about how brainwaves respond and what they do.

The researchers combined these «universal relations» with data on gravitational - wave signals and the subsequent electromagnetic radiation (kilonova) obtained during the observation last year of two merging neutron stars in the framework of the LIGO experiment.

Researchers with the BICEP2 project reported swirling patterns in the alignment of electromagnetic waves in the cosmic microwave background, or CMB, the primordial light released into the universe about 380,000 years after the Big Bang -LRB-

«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.

«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.

With regard to «drinkable» sunscreen — water that claims to be infused with electromagnetic waves as a way of protecting the skin — Dr. Lim is very skeptiWith regard to «drinkable» sunscreen — water that claims to be infused with electromagnetic waves as a way of protecting the skin — Dr. Lim is very skeptiwith electromagnetic waves as a way of protecting the skin — Dr. Lim is very skeptical.

The reflected sample beam is recombined with the locally circulated light, and the difference in phase between the two beams — the relative alignment of the troughs and crests of their electromagnetic waves — yields a very precise measure of the distance the sample beam has traveled.

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.

Electromagnetic radiation is a propagating wave in space with electric and magnetic components.

In a new paper, electrical engineers at Duke University demonstrate the first completely dielectric (non-metal) electromagnetic metamaterial — a surface dimpled with cylinders like the face of a Lego brick that is designed to absorb terahertz waves.

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 from QMUL's School of Electronic Engineering and Computer Science, worked with UK industry to demonstrate for the first time a practical cloaking device that allows curved surfaces to appear flat to electromagnetic waves.

With wavelength sizes between a millimeter and a meter, microwave radio frequencies are electromagnetic waves that use frequencies in the.3 gigahertz to 300 gigahertz range.

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 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.

This new study focuses on understanding the propagation properties of the electromagnetic wave associated with light to learn how best to stop it.

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.

Far from being empty, modern physics assumes that a vacuum is full of fluctuating electromagnetic waves that can never be completely eliminated, like an ocean with waves that are always present and can never be stopped.

To alter this behaviour, the team built a device made of 11 concentric rings of circuit boards etched with small metal - lined channels that prevent electromagnetic waves reflecting away.

Going forward, however, matching gravitational waves with electromagnetic ones could usher in a new era of astronomy.

A novel metamaterial enables a fast, efficient and high - fidelity terahertz radiation imaging system capable of manipulating the stubborn electromagnetic waves, advancing a technology with potential applications in medical and security imaging, a team led by Boston College researchers reports in the online edition of the journal Nature Photonics.

«The fact that this high - speed flickering was observed at the same time as flickering with a typical 1/10 second period may mean that the flickering aurora was caused by «electromagnetic ion cyclotron waves» (* 2), which are affected by both oxygen and hydrogen ions.»

Metamaterials are designer electromagnetic materials that have tunable optical properties, allowing them to interact with light waves in new ways.

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.

The Finalists are also creating technologies that revolutionize electronics and energy storage; developing the science of social and information networks; exploring novel methods to grow, analyze and manipulate nanomaterials; and engineering metamaterials (materials that have properties not found in nature) that interact with electromagnetic and sound waves in unusual ways.

The rest goes into pulses observed elsewhere in the electromagnetic spectrum and into cosmic rays, with perhaps some going into the emission of gravitational energy, or gravity waves.

The fifth gravitational wave event (GW170817), detected in mid-August 2017, was probably even more important than the first detection because it was the first one whose source also produced electromagnetic radiation we could observe with ground and space - based telescopes.

This is the first time that scientists have measured both the gravitational waves and electromagnetic waves from a single cosmic event, connecting a GRB with a neutron star merger and opening a brand - new way to study the universe — known as «multi-messenger astronomy.»

In an assumed ideal free space (without intrusion from other fields or forces of any kind, devoid of matter, and, thus, in effect without any intrusions, demarcations, or boundaries), such waves propagate with the speed of light in the so - called transverse electromagnetic mode — one...

These regularities include the appearance of new peaks in the absorption spectrum of electromagnetic radiation with different polarization, as well as qualitative differences in the dynamics of the wave packet that are manifested when hexagonal distortion or corrugation of the spectrum is taken into account.

New «deep learning» algorithms are expected to improve the detection of gravitational wave signals and, with additional work, may help identify electromagnetic counterparts to gravity wave events

Our bodies and cells have electrical energy, and especially with the high prevalence of Electromagnetic waves, Wi - Fi and mobile phone waves, many of us have a high amount of positive electrons built up in our bodies.

Although other research has demonstrated that brain stimulation with electrical current or electromagnetic waves can affect brain activity, it's remained controversial because it's not been reproducible.

Electromagnetic Fields (EMF) are energy waves with frequencies below 300 hertz or cycles per second.