Sentences with phrase «electromagnetic radiation at»

Planck's law «In physics, Planck's law describes the spectral radiance of electromagnetic radiation at all wavelengths from a black body at temperature T.

There is no consistent evidence of human health effects from exposure to extremely low - frequency electromagnetic radiation at much higher levels than is present near wind farms.

Most infrared saunas emit electromagnetic radiation at base levels.

The CALLISTO (Compound Astronomical Low - cost Low - frequency Instrument for Spectroscopy in Transportable Observatory) spectrometers, designed and built by electronics engineer Christian Monstein of the Institute for Astronomy of the Swiss Federal Institute of Technology Zurich (ETH Zurich), record the intensity of electromagnetic radiation at radio frequencies, between 45 and 870 megahertz.

Each circuit board holds a square of four identical resonators — devices that absorb electromagnetic radiation at a specific frequency.

The timing and strength of the electromagnetic radiation at different wavelengths provided scientists with clues about the nature of the phenomena created by the initial neutron - star collision.

Not exact matches

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

«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.

For cloaking to work, the metal shapes stamped on the metamaterial must be smaller than the wavelength of the electromagnetic radiation that is aimed at them.

Pendry knew he was in uncharted territory, but at first he didn't comprehend the magnitude of his idea: By combining the electrical properties of Marconi's radar - absorbing material with the magnetism imparted by the copper wire, he had unknowingly figured out how to manipulate electromagnetic radiation, including visible light — making wild applications like Harry Potter's invisibility cloak suddenly within reach.

They produce electromagnetic radiation across the electromagnetic spectrum at all wavelengths from long - wave radio to the shortest wavelength gamma rays.

A standard atomic clock takes advantage of the fact that an atom can absorb electromagnetic radiation such as light at certain frequencies as its internal structure jumps from one «quantum state» to another.

The finding that a single layer of atoms modifies properties of light and other electromagnetic radiation has implications for controlling light at subwavelength scales in photonic devices such as LEDs and photovoltaic cells.

Abstract: Surface plasmon resonances provide a pathway to efficiently capture electromagnetic radiation in sub-wavelength structures for energy conversion and photodetection at the nano scale.

Before crossing the point of no return (the event horizon), this material generates huge amounts of electromagnetic radiation and, in the case of quasars, blasts out two jets of subatomic particles that travel in opposite directions at nearly the speed of light.

X-rays are produced in X-ray tubes by the deceleration of energetic electrons (bremsstrahlung) as they hit a metal target or by accelerating electrons moving at relativistic velocities in circular orbits (synchrotron radiation; see above Continuous spectra of electromagnetic radiation).

Massive yet non-supergiant entities known as «Be stars» are main - sequence stars that notably have, or had at some time, one or more Balmer lines in emission, with the hydrogen - related electromagnetic radiation series projected out by the stars being of particular interest.

Maxwell used the later - abandoned concept of the ether to explain that electromagnetic radiation did not involve action at a distance.

At the same time, we are exposed to unprecedented levels of electromagnetic radiation from wireless signals 24/7.

Extremely low frequency (ELF) radiation is at the low - energy end of the electromagnetic spectrum and is often referred to as the Electric Fields.

Further, electromagnetic radiation (such as that emitted by Wi - Fi, cell phones, cell towers and «smart» meters) may affect the body like light does at night — and inhibit melatonin production.

Whether he is quizzing networking pioneers — men around his own age who still marvel at having been present at the creation — or listening to the testimony of «modern - day hermits» living off the grid and away from pervasive electromagnetic radiation, Mr. Herzog communicates compassion and astonishment in equal measure.

At a special facility in Michigan, NHTSA and NASA engineers bombarded vehicles with electromagnetic radiation to study whether such radiation could cause malfunctions resulting in unintended acceleration.

*** «Gravitational redshift» is the process by which electromagnetic radiation originating from a source that is in a gravitational field is reduced in frequency, or redshifted, when observed in a region at a higher gravitational potential.

«As an object radiates energy at a rate given by Equation 20.18 [P = o A e T ^ 4], it also absorbs electromagnetic radiation.

One of these challenges is exposures to electromagnetic field and radiation exposures which may keep our cellular systems from functioning at their best.

gbaikie October 20, 2012 at 6:19 pm «The smaller the wavelength the more powerful the electromagnetic radiation.»

The infrared spectrum: «Infrared (IR) light is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 0.74 micrometres (µm) to 300 µm.»

A liquid - expansion or platinum - resistance thermometer placed in the atmosphere at elevation 2m (for example) above ocean or land surface measures: — molecular kinetic energy (molecular translational energy, heat) plus — LWR energy plus — molecular vibrational energy of the GHGs (primarily H2O in the gaseous form) because LWR energy and molecular vibrational energy of the GHGs are transmuted to molecular kinetic energy (molecular translational energy, heat) upon impacting upon the molecules of the solid and I understand that there is no transverse electromagnetic radiation inside a solid.

There is of course a hotplate at the surface of the planet that is heated by SW electromagnetic radiation.

Well again the science is simple, electromagnetic radiation comes in different wavelengths (sycles) and in return different frequencies, which determines the intensity and penetrating ability... such as gamma rays being able to penetrate solid lead because it is at the high end of the frequency range.

The rate of electromagnetic radiation emitted at a given frequency is proportional to the amount of absorption that it would experience by the source.

With these sources of electromagnetic radiation there is always weak areas in that pattern, sometimes there are directions where no radiation is emitted at all.

It is simply the integration of Planck's Law: «In physics, Planck's law describes the electromagnetic radiation emitted from a black body at absolute temperature T.