Sentences with phrase «on electromagnetic»

Many security tokens and hotel room keys use RFID or NFC to transmit the secure information also rely on electromagnetic induction to function.

This feature represents a significant advancement in comparison to traditional wireless chargers which rely on electromagnetic induction and aren't able to simultaneously charge several devices, at least not at reliable speeds.

It is also probably the one that closely matches what one imagines to be truly wireless charging, riding on electromagnetic fields to course power between charging pad to device.

David Springer wrote: «Roy Spencer, one of the world's foremost experts on electromagnetic wave propagation through earth's atmosphere, does a good job of describing the hypothetical conditions which would evolve if we had a pure N2 atmosphere including no water vapor.»

This may help a bit — more, old and simplified, on electromagnetic waves and simple dipole radio antennas: http://www.dtic.mil/dtic/tr/fulltext/u2/684938.pdf

As an artist working predominantly with sound, she has created a unique body of performances, installations, and sculptures based on electromagnetic fields, a line of inquiry that stems from a deep urge to listen to an invisible world, here the world of electrical conduits and systems.

(Shahabi S, Kasariyans A, Noorbakhsh F. Like cures like: A neuroimmunological model based on electromagnetic resonance.

The astronomers found dozens of these galaxies with the South Pole Telescope, a 10 - meter dish in Antarctica that surveys the sky in millimeter - wavelength light (situated between radio and the infrared on the electromagnetic spectrum).

These use terahertz rays, which lie between microwaves and infrared radiation on the electromagnetic spectrum.

«If we observe exactly the asymmetry we predict based on the electromagnetic interaction, then this becomes very strong evidence to support our hypothesis,» Nakagawa said.

Depending on the electromagnetic field of the laser pulse, the electron either accelerated or decelerated.

Existing backpack generators based on electromagnetic induction produce 5 to 20 watts, but weigh 10 times as much.

Shielding makes it possible to insulate electrical conductors so they can be handled safely, even if they carry 220 lethal volts, and for the same reason, radios, which feed on electromagnetic radiation, fade in highway tunnels.

The method combines two high - tech laboratory techniques and allows the researchers to precisely poke holes on the surface of a single cell with a high - powered «femtosecond» laser and then gently tug a piece of DNA through it using «optical tweezers,» which draw on the electromagnetic field of another laser.

To prevent transmissions from interfering with each other, the Federal Communications Commission and the National Telecommunications and Information Administration tightly regulate the use of every radio frequency on the electromagnetic spectrum.

SpaceX will begin launching an initial constellation of 4,425 Ka / Ku band [a term that indicates range on the electromagnetic spectrum] low Earth orbit satellites in 2019, with the system becoming operational once at least 800 satellites are deployed, the FCC documents show.

Not exact matches

I can't speak for the reliability of the remote sleep tracker, which purports to identify circadian rhythms via electromagnetic waves and then maps them on an app.

On March 14, Industry Minister Christian Paradis unveiled the rules for the federal government's wireless spectrum auction, which will allow Canada's telecommunications companies to bid on some prime new electromagnetic real estatOn March 14, Industry Minister Christian Paradis unveiled the rules for the federal government's wireless spectrum auction, which will allow Canada's telecommunications companies to bid on some prime new electromagnetic real estaton some prime new electromagnetic real estate.

The ship has a number of new technologies, like the Electromagnetic Aircraft Launch System, which is intended to replace the current steam - powered launch system on current aircraft carriers.

Arx Pax's system is potentially much less expensive than existing maglev systems, which rely on complex electromagnetic systems in both vehicle and tracks and can cost tens of millions of dollars per mile.

Approximately $ 2 million was incurred on the claims from magnetic, radiometric, electromagnetic and radon gas surveys through to a successful 20 - hole diamond drill program totalling 3,075 metres.

When an atheist can explain how the universe came into being from absolutely nothing (no vacuum, no electromagnetic forces, no anything), or how the first life form came together and started functioning based on random chemical reactions, I'll start to take them seriously.

But many forget that those magnetic or photonic ons - and - offs are physical, just as the electromagnetic wave forms of analog broadcasting are physical, although it must be granted their physicality is tenuous relative to the colossal freight of meaning they incrementally embody.

The metaphor «field» is suggested by the effect that magnets or electromagnetic systems have on iron filings or other entities that are noncontiguous with the magnetic source.

Therefore, there was a contribution to the mass coming from the electromagnetic field, and this contribution depended on the structure of the electron.

In microphysics Planck postulated in 1900 that electromagnetic energy is emitted in quantised forms and its study must rely on statistical probabilitiesinstead of classical laws.

Briefly, Whitehead initially (in works published circa 1919 - 1924) objected to Einstein's formulation of the theory of relativity on the grounds that for Einstein the geometry of the world was variable, its metric being a function of gravitational and electromagnetic field variables.

In selecting a measuring rod, care is exercised to eliminate or to correct for thermal, electric, electromagnetic, and other physical influences which would result in a dependence of the rod's length on its particular physical composition; that is, the influence of the so - called «differential» forces is eliminated.

For his fellowship dissertation on Maxwell's electromagnetic field theory, 11 as well as his first two scientific publications on special problems of the hydrodynamics of incompressible fluids12 testify to an at least open relationship to problems of mathematical physics.

For those wanting to save on energy costs, or who prefer to avoid the electromagnetic fields that are generated by electric mattress pads, there are some other more natural options to creating a warm, cozy bed!

Some people are concerned about the risk that these digital baby monitors put on their babies and toddlers since they use electromagnetic rays.

In the hopes of seeing the gas clouds from which the first stars arose, Loeb has devoted much of the past decade to a new field called 21 - centimeter cosmology, a branch of radio astronomy that focuses on identifying electromagnetic radiation that started out with a wavelength of 21 centimeters.

The new field of 21 - centimeter cosmology is a branch of radio astronomy that focuses on identifying electromagnetic radiation that started out with a wavelength of 21 centimeters.

Sasanelli stayed there for 11 years, working at first on designing application - specific integrated circuits (ASICs) that were resistant to interference from electromagnetic radiation.

She was among the first to give national visibility to such issues as electromagnetic pulse weaponry and hormone - mimicking pollutants, and was the first anywhere to report on the widespread tainting of streams and groundwater sources with pharmaceuticals.

Just as light waves can be polarized horizontally or vertically depending on which way the electromagnetic field in them jiggles, gravitational waves can be polarized in two ways, according to general relativity, Will says.

Another report recommended a technical solution, based on internet packet networks, to divvy up the government - held electromagnetic spectrum to accommodate the broadband needs of rapidly expanding technologies like smart phones.

The high - performance photodetector uses so - called surface plasmon polaritons, highly concentrated electromagnetic waves at metallic - dielectric interfaces, to combine optics and electronics on smallest space.

The researchers added the cells to a soft bio-compatible sheath that also contained wirelessly - powered red LED lights to create HydrogeLEDs that could be turned on and off by an external electromagnetic field.

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.

«The evidence that these new gravitational waves are from merging neutron stars has been captured, for the first time, by observatories on Earth and in orbit that detect electromagnetic radiation, including visible light and other wavelengths,» said Chad Hanna, assistant professor of physics and of astronomy & astrophysics and Freed Early Career Professor at Penn State.

Just as we use various electromagnetic wavelengths such as visible light, infrared and X-rays to study the cosmos, gravitational waves will act as a brand new eye on the universe, potentially giving us greater insight into objects like black holes and neutron stars.

Using telescopes on the ground and in space, physicists raced to conduct follow - up observations, and found that the collision released light across the electromagnetic spectrum.

Electromagnetism is the physics of the electromagnetic field: a field, encompassing all of space, which exerts a force on those particles that possess the property of electric charge, and is in turn affected by the presence and motion of such particles.

Published in the journal Nature Medicine, the team describes successfully using electromagnetic waves to turn on insulin production to lower blood sugar in diabetic mice.

Because these electromagnetic emissions are on the order of an electron volt, and they probably come from a single molecule, or atom, or electron, we can now say that the energy concentration is now on the order of one electron volt per molecule — an increase of a factor of 1011 or so.

And in May, a week after Massachusetts Sen. Edward Kennedy was diagnosed with a glioma, The EMR Policy Institute, a Marshfield, Vt. — based nonprofit organization that supports research on the effects of electromagnetic radiation, released a statement linking his tumor to heavy cell phone use.

To gather other kinds of data, meanwhile, some technologies focus on alternate regions of the electromagnetic spectrum, for instance, radar.

Light behaves differently in such a waveguide, because the electromagnetic fields must obey certain «boundary conditions» on the sides of the device.

The team shows that a nanoscale metal rod on graphene (acting as an antenna for light) can capture infrared light and transform it into graphene plasmons, analogous to a radio antenna converting radio waves into electromagnetic waves in a metal cable.