Sentences with phrase «radioactive elements in»

It will not stop warming until the amount radiated to space equals the amount generated by the radioactive elements in the planet.

Since energy is constantly being added from the decay of the radioactive elements in the planet's core, the temperature inside a perfect reflector would rise until the reflector melted.

«There may be radioactive elements in the steam,» says Resnikoff.

(As a side remark, a large proportion of the remaining 90 % can be attributed to the Earth's internal nuclear reactor, namely decay of radioactive elements in the Earth.

In any case, no - one is suggesting that the planet's core is getting hotter, which would be needed to actually make our planet warm; to the contrary, the planet will be very slowly cooling as the radioactive elements in the core providing this heat gradually lose their energy.

To detect very small quantities of mobile radioactive elements in the groundwater at former nuclear weapons production sites, researchers have developed a new type of sensor.

«Venus is a big planet, being heated by radioactive elements in its interior.

But the buildup of heat from the decay of radioactive elements in the interior then remelted parts of the mantle, which began to erupt onto the surface some 500 million years after the Moon's formation, pooling in impact craters and basins to form the maria, most of which are on the side of the Moon facing the Earth.

That antineutrino is the «tell» for a reactor because only the radioactive elements in nuclear fuel emit lots of them at a steady rate.

And there are other naturally occurring radioactive elements in seawater as well, such as polonium.

But even in the cold of space, these wayward worlds could stay warm, thanks to the decay of radioactive elements in their rocky cores.

«The radionuclide ratios we measured in the sediments and the rates of decay and growth of radioactive elements in the impacted sediments allowed us to essentially age - date the contamination to after 2011,» she explained.

To conduct the study, they collected stream sediments from three wastewater disposal sites in western Pennsylvania, as well as three upstream sites, and analyzed the radioactive elements in the sediments.

But he says it's «not ridiculous» to think that Pluto has enough residual heat, from radioactive elements in its rock, to drive cryovolcanism.

Pluto's geological activity is driven both by heat leaking from radioactive elements in its interior — a remnant of its birth more than 4 billion years ago — and by the volatile compounds that flit between its surface and its atmosphere.

As Japanese officials caution the Fukushima region about low levels of radioactive elements in soil and plants, researchers develop devices to more easily measure exposure levels

Since these elements exist only for a definite span of years, and all the uranium, radium, thorium and other radioactive elements in the world today have not yet existed that many years, there was a time, prior to the duration of this span in the past, when these elements DID NOT EXIST!

When Matter Did Not Exist The radioactive elements in existence today have not yet been in existence long enough to have run their course, and disintegrated into lead.

Part of this heat is generated by the natural decay of radioactive element in the rocks, and part of the heat is left over from the formation of the Earth five billion years ago — when gravity pulled together bits of gas and dust to form our planet.

Not exact matches

However, radioactive iodine represents a tiny percentage of the elements that the human body would be exposed to in the event of a nuclear disaster.

Carcinogenic, radioactive elements such as uranium and plutonium are too impractical, as are synthetic elements that exist only momentarily in lab experiments — seaborgium and einsteinium, for example.

To have ALWAYS existed, without any definite time of starting in the past, this «life» period of radioactive elements long ago would have run its course.

The discoveries and scientific creations of recent years in the field of nuclear energy, transforming our period into a new power age, are directly traceable to the discoveries of radioactive elements by Becquerel and the Curies, inaugurating the new physics.9 A new depth of relations and energy revealed in both earlier and more recent experiments has routed the world - view of mechanism which Newton and his followers through the nineteenth century had come to take for granted.

Just so, on the inorganic level, every element in the periodic scale has its special characteristics, and some, like the radioactive substances, have qualities of far - reaching significance in certain respects.

Elevated levels of radium have been found in groundwater samples from shallow monitoring wells on the Bethpage High School campus and the state DEC plans to take more samples and scan field and soil areas there for more radioactive elements.

The poisoning incident comes a decade after another former Russian spy, Alexander Litvinenko, was poisoned with a rare radioactive element and died in London.

It smells amazing and the «radioactive» element soap bars even glow in the dark.

His chemistry lab is specifically designed to handle radioactive elements like berkelium, making it the only university lab in the country equipped to do so.

And in a chapter on the radioactive elements carried in nuclear fallout, there's Pig 311, a sow that survived a nuclear test blast only to be used as propaganda for the weapons» supposed safety.

In a new study, Scripps Institution of Oceanography at the University of California San Diego Professor James Day and colleagues examined the chemical composition of zinc and other volatile elements contained in the green - colored glass, called trinitite, which were radioactive materials formed under the extreme temperatures that resulted from the 1945 plutonium bomb explosioIn a new study, Scripps Institution of Oceanography at the University of California San Diego Professor James Day and colleagues examined the chemical composition of zinc and other volatile elements contained in the green - colored glass, called trinitite, which were radioactive materials formed under the extreme temperatures that resulted from the 1945 plutonium bomb explosioin the green - colored glass, called trinitite, which were radioactive materials formed under the extreme temperatures that resulted from the 1945 plutonium bomb explosion.

Lawrence's brother, John, a doctor at Yale, used one of the elements from his brother's cyclotron, radioactive phosphorus, to examine metabolism in mice.

«Thus, intrinsic colloids are expected to play an important role in actinide (radioactive elements) transport from nuclear repositories.»

In the United States at the Nevada test site, radioactive elements moved 1.3 kilometers from their source in just 30 years: significantly more than what was predicted from theoretical calculationIn the United States at the Nevada test site, radioactive elements moved 1.3 kilometers from their source in just 30 years: significantly more than what was predicted from theoretical calculationin just 30 years: significantly more than what was predicted from theoretical calculations.

«Determining the specific impact of intrinsic colloid formation by radioactive elements can aid in the development of migration models predicting radionuclide transport on a field - scale,» says Prof. Weisbrod.

Because Charon's modern - day surface is mostly water ice, it makes sense that the 1212 - km - diameter moon once had a subsurface ocean kept liquid by heat from the radioactive decay of elements in its core, as well as by the heat generated from collisions of smaller bits when the moon first accumulated.

Since the neutron star propagates with an estimated speed of at least 350 kilometers per second, the asymmetry in the spatial distribution of the radioactive elements is expected to be very pronounced.

Studying such compounds in the lab also helps computational researchers to improve their predictions about the more highly radioactive elements present in nuclear waste that are even more difficult to study.

But also new elements are created in the hot ejecta of the explosion, among them radioactive species such as 44Ti (titanium with 22 protons and 22 neutrons in its atomic nuclei) and 56Ni (28/28 neutrons / protons), which decay to stable calcium and iron, respectively.

Members of a team led by paleoanthropologist Isaiah Nengo estimated the fossil's age by assessing radioactive forms of the element argon in surrounding rock, which decay at a known rate.

Previous studies have shown that fracking fluids contain high levels of salts, barium and radioactive elements, in addition to human - made chemicals added in the process of hydraulic fracturing.

Visible from space, the Bayan — Obo iron mine in Inner Mongolia is the world's largest source of rare earths, and the Chinese companies supplying them employ acid to dissolve them out of ore rock that often also contains radioactive elements like thorium, radium or even uranium.

He theorized that this could occur not only in radioactive elements, but in stable ones as well.

But in October, many such patients may not be able to get the best possible test, due to a looming shortage of a crucial short - lived radioactive element.

While researching the disintegration of radioactive elements with Ernest Rutherford, Soddy in 1910 observed that elements of different atomic weights sometimes had the same chemical properties.

Uranium, the radioactive element that fuels nuclear power plants and occurs naturally in the Earth's crust, is typically mined from large sandstone deposits deep underground.

At the US government's Los Alamos National Laboratory in New Mexico, researchers are generating neutrons with a particle accelerator and using them to transmute long - lived radioactive elements.

Instead, brackish groundwater underneath the beaches has accumulated the second highest levels of the radioactive element (surpassed only by the groundwater directly beneath the reactor), researchers report October 2 in the Proceedings of the National Academy of Sciences.

Soil at the spill sites was contaminated with radium, a naturally occurring radioactive element found in brines, which chemically attached to the soil after the spill water was released.

The Hebrew University team of scientists have shown that these contradicting observations can be reconciled if the source of radioactive plutonium (as well as other rare elements, such as gold and uranium) is in mergers of binary neutron stars.

For ores that contain even less concentrated uranium — McArthur River is the most concentrated active mine — the proportion of waste in radium and other radioactive elements (as well as toxic heavy metals such as arsenic and mercury) is even higher — and McArthur River's uranium is much less concentrated than the mines of the past like nearby Rabbit Lake or Shinkolobwe in the Democratic Republic of the Congo's Katanga Province.