Sentences with phrase «radioisotopes from»

The scientists studied crops at a Tokyo research field, including cabbages and potatoes that were planted a few weeks after rains showered the field with radioisotopes from Fukushima.

Not exact matches

«If the earth formed over four billion years ago, all helium should have escaped from zircons, yet the crystals are loaded with this element» «The atmosphere should be full of helium atoms, the byproducts of millions of years of radioisotope decay, but it isn't.»

Furthermore, most of the radiation had accumulated on the leaves and could be washed off, suggesting that the plants were not absorbing dangerous levels of radioisotopes directly from the soil.

Radioisotope power systems convert heat from the natural radioactive decay of the isotope plutonium - 238 into electricity.

Nearly half a century ago, NASA developed radioisotope thermal generators (RTGs) that convert the heat from radioactive decay into electricity.

In a collaborative study appearing in Nature, researchers from Japan describe how gamma rays from lightning react with the air to produce radioisotopes and even positrons — the antimatter equivalent of electrons.

In the best case, based on a 100 - kiloton blast at a depth of 1000 metres and well away from the edge of the atoll, radioisotopes would take 750 years to reach the limestone, where fissures stretching to the ocean have appeared as a result of previous tests.

Opponents of the tests have warned that potentially harmful radioisotopes, especially caesium - 137, strontium - 90 and plutonium isotopes, will leach from rocks fractured by the blasts.

The first system — radioisotope thermoelectric generators, or RTGs — taps heat released from the natural decay of a radioactive element, such as plutonium.

Cassini also received flak from environmental groups who were concerned that when the spacecraft flew by Earth, its radioisotope thermoelectric generator (nuclear power) could pose a threat to our planet, JPL added.

But what mechanism could have raised the temperatures of the asteroids to this extent if the rocky bodies were too small to retain the heat from long - lived radioisotopes?»

Also, don't forget about the science in «like supports like» (from the radioisotope labeling studies)... remember that our own spleen plays a vital role in blood building as it recycles red blood cells, iron, platelets and it maintains a reserve of red blood cells — releasing red blood cells when needed.

Example perhaps get responses bodybuilding forum dating sites than those would expect from a radioisotope with a billion.

Properties and uses of radiation from unstable radioisotopes tutorial for chemistry students.

Although cats continue to secrete the radioisotope for several weeks upon their return home, the resulting radiation exposure to the owner is less than the radiation experienced by a passenger on a round - trip flight from New York to Los Angeles.

Hans Suess showed in 1955 that the new CO2 was anthropogenic, as demonstrated from its radioisotope signature.

Tens of billions of tons of concrete are part of that signature, along with vast amounts of smelted aluminum and more exotic alloys, distinctive spherical particles of fly ash from power plants, bomb radioisotopes, 6 billion tons (and counting) of plastic, and so much more.

Radioisotopes for carbon changes inform that the carbon comes from old sequestered carbon, like oil, gas and coal deposits.

The TSI is inferred from such things as sunspot records and radioisotopes, which are controversial and not precise.

We know the new CO2 is coming from fossil fuels and deforestation, not the ocean, through its radioisotope signature.