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Later, after radioactivity had been proven to be a significant source of the Earth's internal heat, he did privately admit that he might have been in error.
What is especially telling about this whole story is the conclusion of the absolute truth of the conclusion based on premises that are weak, or at least not adequately demonstrated.
Chamberlain (1899) pointed out that Kelvin's calculations were only as good as the assumptions on which they were based.
"The fascinating impressiveness of rigorous mathematical analyses, with its atmosphere of precision and elegance, should not blind us to the defects of the premises that condition the whole process.
That was only the fifth time in history scientists have chemically confirmed Martian meteorites that people witnessed falling.
The last shower that was found 'fresh' - and thus uncontaminated by Earth chemicals - was in 1962.
Both the physical geologists and paleontologists could point to evidence that much more time was needed to produce what they saw in the stratigraphic and fossil records.
The tiny stones found in northern California's Sierra foothills were part of a giant fireball that exploded with about one-third of the force of the atomic bomb that was dropped on Hiroshima at the end of World War II, scientists said.Hotspot: The redbullseye indicates the place where Sunday's meteor exploded over California's central valley.The yellow triangles mark infrasound arrays which were key in determining the location of the meteor's explosion Don Yeomans of Nasa's Near-Earth Object Programme Office at the Jet Propulsion Laboratory in Pasadena, California said it was a once yearly event which usually takes place over the ocean or uninhabited parts of the globe.Talking of his discovery, Mr Ward said he 'instantly knew' he'd found a rare meteorite known as 'CM' - carbonaceous chondrite - based in part on the 'fusion crusts from atmospheric entry' on one side of the rock.He has two rocks that he suspects were part of the same small meteorite that split on impact.