Sentences with phrase «absorb radiation as»

Not exact matches

«There's no assumption that there's some kind of blocking going on,» he said, which is all the more reason to put as much concrete, steel, and other radiation - absorbing building materials between you and a blast.

When a unit of electromagnetic radiation such as a microwave hits an electron, it absorbs it and changes position.

I was initially worried that the radiation around those vehicles would be very high, as metal absorbs radioactivity better, but it wasn't.

Referred to as the Specific Absorption Rate (SAR), this value is a measure of the amount of radiation absorbed by the body when a device is at its maximum power.

As the solar absorber takes in more energy, its temperature increases, causing it to lose energy in the form of thermal radiation.

Finally, the film of electrons would absorb the radiation and reemit it as heat.

The detector developed at UNH, known as DoSEN, short for Dose Spectra from Energetic Particles and Neutrons, measures and calculates the absorbed dose in matter and tissue resulting from the exposure to indirect and direct ionizing radiation, which can change cells at the atomic level and lead to irreparable damage.

The sunscreen chemicals that absorb the sun's dangerous ultraviolet radiation are typically organic molecules (as opposed to the metal oxides that block the sun's rays in sunblock).

Greenland's surface is absorbing more solar radiation as melting increases grain size and brings old impurities to the surface.

«Just as clouds reflect radiation efficiently, they also absorb radiation efficiently and re-emit that energy back to warm the surface.»

When these gamma rays reach the Earth's atmosphere they are absorbed, producing a short - lived shower of secondary particles that emit weak flashes of bluish light known as Cherenkov radiation, lasting just a few billionths of a second.

«It's important to note that the article doesn't address the direct and immediate impact of forest burning, such as emissions of black carbon [considered a major driver of global warming owing to its high capacity for absorbing solar radiation].

Soot particles, also known as black carbon aerosols, affect climate by absorbing sunlight, which warms the surrounding air and limits the amount of solar radiation that reaches the ground.

Theoretically the thin conducting skins that could be woven with this material could also have applications in stealth aircraft, as the material would be an ultralight radio - frequency radiation absorber that could foil radar.

One possible solution to quickly measure a population's exposure to radiation in the event of a nuclear disaster or some other large - scale leak of radioactive material — such as a so - called «dirty bomb» attack — would be to scan the body in places where that material is most readily absorbed.

The team also presented the first observational evidence that WASP - 33b's atmosphere contains titanium oxide, one of only a few compounds that is a strong absorber of visible and ultraviolet radiation and capable of remaining in gaseous form in an atmosphere as hot as this one.

These so - called starbursts are difficult to observe from Earth, as their dusty shrouds absorb much of the optical light from the stars and re-radiate it as longer - wavelength radiation to which Earth's atmosphere is mostly opaque.

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 formation of a stratosphere layer in a planet's atmosphere is attributed to «sunscreen» - like molecules, which absorb UV and visible radiation coming from the star and then release that energy as heat.

As a result, changes in Antarctic clouds, such as the amount of ground they cover or how much radiation they absorb, can have ripple effects as far away as the tropicAs a result, changes in Antarctic clouds, such as the amount of ground they cover or how much radiation they absorb, can have ripple effects as far away as the tropicas the amount of ground they cover or how much radiation they absorb, can have ripple effects as far away as the tropicas far away as the tropicas the tropics.

Unfortunately, many of the fabrics we wear, such as cotton, have chemical groups that absorb radiation in that range.

The ozone layer acts as Earth's sunscreen by absorbing harmful ultraviolet radiation from incoming sunlight that can cause skin cancer and damage plants, among other harmful effects to life on Earth.

In addition, they must have been able to resist the biologically destructive ultraviolet radiation in sunlight, which was not absorbed by a layer of ozone as it is now.

The hydrogen atoms absorbed the background radiation, and it's this change that the new study was able to detect as radio waves.

... as bare rock, sand, and water also absorb solar radiation.

Dark matter is an unseen substance that does not, as CERN explains, absorb, reflect or emit electromagnetic radiation such as light.

The formation of a stratosphere layer in a planet's atmosphere is attributed to «sunscreen» - like molecules, which absorb ultraviolet (UV) and visible radiation coming from the star and then release that energy as heat.

Carbon dioxide, as well as CH4 and other gases, absorb and re-emit longwave radiation back to the earth's surface that would otherwise radiate rapidly into outer space, thus warming the Earth.

I suspect the problem here is that you are thinking of greenhouse gases as blocking thermal radiation such that once the radiation is absorbed there isn't any reemission.

The shorter wavelengths of IR radiation can penetrate the atmosphere, but as its wavelength reaches one micrometre, IR radiation tends to be absorbed by water vapour and other molecules in the atmosphere.

In doing so, as the CMB photons traveled through this hydrogen gas, it absorbed a particular frequency — so rather than look for a specific emission, astronomers have been looking for a specific type of absorption, or a certain frequency of CMB radiation that was missing.

However, it is possible that many galaxies in the universe have been overlooked as much of that radiation is largely absorbed by cosmic dust (* 1).

Any short wavelength radiation that might have been emitted was quickly absorbed by the atomic gas, and a long interval known as the Dark Ages began.

If the surface plus atmosphere together acts as a gray body at 288 K with e = 0.61, then only 61 % of incoming solar radiation at thermal infrared wavelengths (a small fraction of the total) will be absorbed.

In 1861, John Tyndal published laboratory results identifying carbon dioxide as a greenhouse gas that absorbed heat rays (longwave radiation).

Climate is driven largely by energy from the sun, and the manner in which this incoming solar radiation is reflected, absorbed, transformed (as in photosynthesis), or re-radiated (as heat).

Melanin molecules absorb ultraviolet radiation from the sun, protecting you from tissue damage as a result of sun exposure.

He also states that «in plants, lutein and zeaxanthin play a role in absorbing light outside the red and blue range and funneling it away, in essence acting as a chemical «sun block» that helps protect the plant from excessive radiation.»

Scientists speculate that sunscreen users stay out in the sun longer and absorb more radiation overall, or that free radicals released as sunscreen chemicals break down in sunlight may play a role.

As the frequency of the electric field of the infrared radiation approaches the frequency of the oscillating bond dipole and the two oscillate at the same frequency and phase, the chemical bond can absorb the infrared photon and increase its vibrational quantum number by +1.

Perhaps all of this newly freed up ice - cold water at the poles is temporarily acting as a negative feedback, but as it absorbs more of the solar radiation, over time, it will transform into what we rightly think: a predominately positive feedback system, rapidly intensifying the warming.

Barton, For the atmosphere to be in thermodynamic equilibrium, the greenhouse gases must be emitting as much radiation as they absorb.

Hypothesis A — Because the atmospheric radiation is completely absorbed in the first few microns it will cause evaporation of the surface layer, which takes away the energy from the back radiation as latent heat into the atmosphere.

This is very difficult to explain to a non-scientist, but basically it is an established scientific fact based on long - established experiment and theory that simple molecules like O2 and N2 don't absorb infra - red radiation whereas more complicate molecules such as CO2 and H2O can.

This knowledge is not new; the same year as Charles Darwin published «The Origin of Species», John Tyndall, an Irish scientist, published a paper in 1859 describing how he measured the absorption of infrared radiation in his laboratory, finding that CO2 and water vapour absorbed the radiation, whereas nitrogen and oxygen, the main gases in the atmosphere, do not.

This is about twice as much as absorbed solar radiation (~ 168 W / m ^ 2), over 3x as much as evaporation (~ 97 W / m ^ 2), and about 30x as much as sensible heat loss (~ 12 W / m ^ 2).

For those wavelengths in which the air absorbs effectively (such as the 15 micron CO2 band), surface radiation is effectively replaced by colder emission aloft, and is manifest as a bite in the spectrum of Earth's emission (see this image).

I was thinking instead perhaps more easily controlled polar - orbit satellites might be used, which would rotate with some fixed ratio to their orbital period, casting greater shadows at higher latitudes... or some other arrangment... for a targetted offset polar amplification of AGW especially and in particular perhaps avoiding the reduction in precipitation that can be caused by SW - radiation - based «GE» (although aerosols that actually absorb some SW in the troposphere while shielding the surface would have the worst effect in that way, I'd think)... strategic distribution of solar shading has been suggested with precipitation effects in mind, such as here... sorry, I don't have the link (I'm sure I saved it, just as Steve Fish would suggest — but where?).

The haze reduced the seasonal average solar radiation absorbed by the equatorial Indian ocean by as much as 30 to 60 W m − 2 during September to November 1997, and increased the atmospheric solar heating by as much as 50 % to 100 % within the first 3 kilometers.

In reply to # 1, greenhouse gases absorb selective bands of radiation in the atmosphere and re-radiate them in all directions as longer wave infrared.