Sentences with word «krypton»

Krypton refers to a chemical element represented by the symbol "Kr" in the periodic table. It is a colorless and odorless gas that is found in very small amounts in the Earth's atmosphere. Full definition
They aimed an attosecond pulse and a longer pulse of red light into a gas of krypton atoms.
The team worked with researchers at Pacific Northwest National Laboratory, the University of Washington, the University of California at Santa Barbara (UCSB), and elsewhere to record the activity of more than 100,000 individual electrons in krypton gas.
By creating the first optical attosecond pulse and using it to set electrons in krypton atoms in motion, they discovered that it takes as long as 100 attoseconds for electrons to respond to the electromagnetic forces of light.
With this novel tool at hand, the researchers flashed krypton atoms with optical attosecond pulses.
These experiments suggest that the clustering with selected rare gas carrier atoms (such as krypton and xenon but not argon) can selectively quench N - H bond fission.
GAS FILLS: Argon or krypton mixes slow the movement of warm and cool air in IG airspaces and improve thermal performance.
The majority of electrons observed behaved in a characteristic pattern: As the radioactive krypton gas decays, it emits electrons that vibrate at a baseline frequency before petering out; this frequency spikes again whenever an electron hits an atom of radioactive gas.
The sill region of the doors shines in brushed aluminum, ensuring an intriguing contrast to the show car's krypton orange paint finish.
Greg Holland of the University of Manchester, UK, and colleagues have arrived at a different theory after collecting samples of the noble gas krypton from several hundred metres beneath New Mexico.
Top - of - the - line double - insulated windows also use krypton gas rather than argon or plain old air for insulation.
Uncertain krypton measures from earlier probes presented two possibilities: Venusian levels could match Earth's, indicating the two planets probably formed from similar ingredients in the primordial nebula, or they could differ enough to force scientists to toss out their theories on Venus's origins.
Greg Holland of the University of Manchester, UK, and colleagues have other ideas, after collecting samples of the noble gas krypton beneath New Mexico.
Solidified krypton is white and crystalline with a face - centered cubic crystal structure which is a common property of all «rare gases».
A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere, is isolated by fractionating liquefied air, and is often used with other rare gases in fluorescent lamps.
A team of scientists has successfully identified the age of 120,000 - year - old Antarctic ice using radiometric krypton dating — a new technique that may allow them to locate and date ice that is more than a million years old.
In 1962, chemists prepared a compound that contained xenon, and compounds containing radon and krypton soon followed.
By crashing krypton particles into a chunk of lead, they had created element 118 and the element into which it rapidly decayed, element 116.
Comparing argon and krypton let the scientists cancel out experimental errors, leading to a more sensitive measurement that was able to distinguish between the two theories.
Despite these efforts, to detect pp neutrinos the Borexino collaboration had to go through an especially lengthy purification campaign to reduce the levels of radioactive contaminants in the scintillator liquid — particularly krypton - 85, a byproduct of nuclear testing and reprocessing that now pervades the atmosphere and produces a decay signal very similar to that from the arrival of a pp neutrino.
There's no Superman, and there's no such thing as kryptonite, either — at least not one that glows green and contains the element krypton.
However the real - life mineral isn't called kryptonite because krypton already exists — it's a noble gas and nowhere to be found in the newly found mineral, which the discoverers dubbed jadarite.
They also tried the experiment using atmospheres of different gases, including krypton and helium.
If the ionization states of silicon can not only be sampled on such a short time scale, but can also be set — as the first experiments with krypton suggest — scientists might one day be able to use this to develop novel and even faster computer technologies.
«They assume that since they don't see solar - type krypton today in this one reservoir, that it was never there,» Pepin says.
Neutron - rich krypton - 89 will then β decay repeatedly to form rubidium - 89, strontium - 89, and yttrium - 89, spitting out an antineutrino at each step.
So, for example, uranium - 235 can split to make krypton - 89.
Modeling the turbulent processes — giant impacts and extreme ultraviolet radiation, for instance — that could drive xenon fractionation leads to what Pepin calls a «krypton problem
«It so happens that if you bring a solar component in and mix it with that fractionated krypton, you get the present atmospheric composition,» Pepin explains.
Because light isotopes of krypton escape into space more quickly than heavy isotopes, the atmosphere can only get «heavier»
They also found that NiDOBDC was more selective than charcoal for xenon over krypton, which is fairly similar to xenon.
To find the best MOF for xenon and krypton separation, computational chemists led by Haranczyk and Smit screened 125,000 possible MOFs for their ability to trap the gases.
Other tests also showed that in the absence of xenon, SBMOF - 1 captures krypton.
Thallapally, working with Maciej Haranczyk and Berend Smit of Lawrence Berkeley National Laboratory and others, has been studying materials called metal - organic frameworks, also known as MOFs, that could potentially trap xenon and krypton without having to use cryogenics.
Radioactive iodine and krypton control for nuclear fuel reprocessing facilities.
These lawmakers with their endless debates, have led krypton to ruin!
2016 chevrolet camaro krypton concept leaves us green with envy sema.
It has been suggested that the rise in CO2 had to come from the Southern Ocean (as seen in higher krypton and xenon values in the atmosphere (Severinghaus et al. 2009, Southern see - saw seen.
You can choose between deep red graphics and a color that looks similar to what my favorite car manufacturer calls krypton green.
An international advisory committee for the definition of the meter has now recommended the adoption of an atomic standard of length — an orange spectral line of krypton 86.
The knowledge gained from such research could inform the design, selection, and improvement of adsorbent materials and membranes for capturing gases such as radioactive krypton and xenon generated by nuclear power plants.
The whole shebang is slathered in a «krypton orange» paint job, which looks bright enough to blind even the strongest of superheroes.
He says the precision of the measurements obtained so far in krypton gas has encouraged the team to move on to tritium — a goal Formaggio says may be attainable in the next year or two — and pave a path toward measuring the mass of the neutrino.
Keitel and colleagues tested quantum tunneling by blasting argon and krypton gas with laser pulses.
For example, they want to measure the planet's inventory of stable noble gases, such as xenon and krypton, which change little in abundance over billions of years and hold clues to planetary origins.
They then fixed the individual argon, krypton and xenon atoms in a molecular network.
They found the mantle was rich in heavy isotopes of krypton, while the atmosphere is rich in its lighter isotopes.
9 But when argon was discovered in 1894, it didn't fit into any of Mendeleyev's columns, so he denied its existence — as he did for helium, neon, krypton, xenon, and radon.
It has a radioactive isotope (krypton - 81) that decays very slowly, and a stable isotope (krypton - 83) that does not decay.
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