Ripples in this radiation are, in effect, fossils that reflect patterns of sound in the early universe.
Ingestion of the short-lived isotope iodine-131, with its well-known risk of thyroid cancer when absorbed in the thyroid glands of children and young people, was the only major radiation-related health effect of the Chernobyl accident on the public.
FORBES: Like We've Been Saying -- Radiation Is Not A Big Deal
This is the radiation the planet sheds as it cools, and it is the radiation captured by the greenhouse effect.
They were then able to give the mice higher doses of radiation therapy with no ill effect by blocking a mechanism by which endothelial cells communicate with each other.
But these new findings don't tell us whether activating the cells artificially, in this case by cell phone radiation, will have a negative effect on health.
Since cesium binds to the sediment on the ocean floor, the radiation has likely had the biggest effect on bottom-dwelling fish and other animals though the consequences still aren't clear, said Tatsuo Aono, a specialist at Japan's National Institute of Radiological Sciences.
In contrast, exposure to radiation from standard masts showed no significant effect.
BBC: The location of mobile phone masts has caused controversy
In some conditions the effect can appear to show no radiation damage at all, he adds.
' Several epidemiological studies in the years since the accident have supported the conclusion that radiation releases from the accident had no perceptible effect on cancer incidence in residents near the plant.
Perhaps its greatest moment came in 1979 when it was the first telescope to observe a gravitational lens, an effect where a "massive" object bends electromagnetic radiation such as light around it.
The effect of increased brain activity in children because of cell phone radiation is another area yet to be studied.
While ice reflects around 80 percent of the sun's heat, having a cooling effect, blue sea water can absorb up to 95 percent of solar radiation, warming up the sea and accelerating the melting process further.
Doses of radiation received by people near the damaged power plant were so low that no discernible health effect could be expected.
FORBES: Like We've Been Saying -- Radiation Is Not A Big Deal
Most of it is, of course, radiated back into space. (It is the partial blocking of this radiation by gases such as carbon dioxide that causes the much-talked-of greenhouse effect.) Some of it, however, goes in the opposite direction, into the ground.
While each phone produces radiation that bounces around the car, the passengers absorb some of it, which has the effect of reducing the overall intensity, just as the presence of an audience changes the acoustics of a concert hall, making it less reverberant.
They also conclude that greenhouse warming has partially been offset by the cooling effect of aerosols - tiny particles of dust thrown into the atmosphere that can reflect solar radiation back into space.
"If it is true that the mechanism is all about rays enhancing diffuse radiation, it would mean that 'global dimming' and 'global brightening' would have a big effect on tree growth and therefore on the absorption of carbon dioxide, " warns Ms Dengel.
应用推荐