Sentences with phrase «by radioactive element»

This is light of extremely short wavelengths typically produced either among the stars / in cosmic rays or by radioactive element decay.

The Cassini mission to Saturn, the twin Voyagers» trips beyond the solar system, Curiosity's rove around the Martian surface, New Horizons» pass by Pluto and Galileo's close encounter with Jupiter were all brought to you by the radioactive element plutonium - 238.

Wheeler likes to use the example of a high - energy particle released by a radioactive element like radium in Earth's crust.

«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.

PET employs the antiparticle of the electron, the positron, that is emitted by radioactive elements which can be attached to biologically active molecules that target specific sites of the body.

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

Some gamma rays can be produced by radioactive elements within Ceres itself, but most are byproducts of cosmic rays originating from elsewhere in space.

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

Not exact matches

The nuclear hearts were powered by plutonium - 238, an element that emits close to a century's worth of steady heat due to its natural radioactive decay.

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.

Groundbreaking work by a team of chemists on a fringe element of the periodic table could change how the world stores radioactive waste and recycles fuel.

Their fundamental discoveries may aid research into the management of nuclear waste, by helping scientists understand how chemicals can be used to separate the most radioactive elements.

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.

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.

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.

Tellingly, there was no sign of iron, an element that forms by radioactive decay only many days after a supernova.

By measuring the amount of radioactive elements inside Earth, the detector can study how the planet formed.

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.

This layer was kept warm when Charon was young by heat provided by the decay of radioactive elements, as well as Charon's own internal heat of formation.

The machines handle the decaying element's radiation better than human miners and can tolerate the radon gas released by the ore; early Navajo miners of uranium in the U.S. — and their families exposed to residual radioactive dust and debris as well as contaminated water — developed lung cancer and other ailments by the 1970s and 1980s.

The organisation set up to verify the Comprehensive Nuclear - Test - Ban Treaty (CTBT) has a global network of air samplers that monitor and trace the origin of around a dozen radionuclides, the radioactive elements released by atomic bomb blasts — and nuclear accidents.

Curium was only discovered in 1944, by Glenn Seaborg and his collaborators at the University of California, Berkeley, who, by bombarding atoms of plutonium with alpha particles (atoms of helium) synthesized a new, very radioactive element.

Even if the rifting is explained by the excess radioactive elements, there is still no definitive explanation for why only the near side of the moon ended up enriched.

«Even if our formation wasn't triggered by a supernova, the presence of decay products of certain radioactive elements points to a supernova perhaps seeding the already formed young solar system with enriched elements.»

Based on dating of radioactive elements measured by scientists at the Swiss research center ETH Zurich, the ice at the base of the core may be at least 600,000 years old.

These measurements may also shed light on the proportion of radioactive elements like uranium and thorium inside the Moon, since their decay produces heat and should increase the amount of heat radiated by the Moon, says Paul Spudis of the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, US, who is developing radar instruments to fly on LRO and Chandrayaan - 1.

Natural circulation in the reactor alone is enough to remove all the heat generated by the radioactive decay of the elements in the reactor fuel.

This timescale is well within the half - lives of many of the elements in radioactive waste, yet all the locations for nuclear new - builds that I have seen mooted are in low - lying coastal locations, and all would be threatened or inundated by a 5 - metre rise.

Antineutrinos are a by - product of the fission in a nuclear reactor, in which an atomic nucleus of a radioactive element such as plutonium splits into lighter elements.

The evidence of its existence would be revealed by measuring how the axis of nuclei of the radioactive elements radon and radium line up with the spin.

In a series of papers published online today in Science, researchers report that according to Dawn observations, Vesta did indeed agglomerate enough rocky debris as it grew to heat itself by the decay of the rock's radioactive elements.

Researchers reconstructed Arctic circulation through deep time by measuring radioactive trace elements buried in sediments on the Arctic seafloor.

However, calculations by a team of geoscientist (including Nicolas Flament) suggest that Earth was a «water - world» up through year 2.1 billion because Earth's mantle layer may have been up to 200 °C hotter than it is today, when the early Earth still had a larger quantity of radioactive elements decaying and producing heat.

Scientists have long suspected that these elementary particles, which are produced by the decay of radioactive elements, have a unique trait — they can change, or «oscillate,» between their three known types, or «flavors» — the electron neutrino, the muon neutrino and the tau neutrino.

These particles, which are produced by the decay of radioactive elements, have a unique trait — they can change, or «oscillate,» between their three known types, or «flavors» — the electron neutrino, the muon neutrino and the tau neutrino.

Produced by the decay of radioactive elements, these particles rarely, if ever, interact with matter, making them extremely hard to detect and study.

It is believed to prevent the absorption from the gut by binding toxic elements, which include radioactive strontium, barium, and cadmium.

Not only does Sea Kelp cleanse the immune system by keeping the fluids balanced but it also contains sodium alginate that has been shown to help the body eliminate heavy metals and radioactive elements.

Since heavier elements were built by radiation processes, they were very radioactive when first made.

Beneath the Earth's crust lies the mantle which is heated by the radioactive decay of heavy elements.

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.

«About 50 % of the heat given off by the Earth is generated by the radioactive decay of elements such as uranium and thorium, and their decay products.

Same for radioactive decay of elements in the earth, and I even calculated the energy released by burning of fossil fuels... in the end, all insignificant.