Posts Tagged ‘science’

Two New Elements Added To Periodic Table: Ununquadium And Ununhexium-Elements with Atomic Number 114 and 116

June 9, 2011 2 comments


Two new elements have been added to the periodic table after a three-year review by the governing bodies of chemistry and physics.

The elements are currently unnamed, but they are both highly radioactive and exist for less than a second before decaying into lighter atoms. The table is the official compedium of known elements, organised according to properties of their atomic structure.

Details have been published in the journal Pure and Applied Chemistry. The review was conducted by a joint working party of the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics (IUPAP).

In recent years, there have been several claims by laboratories for the discovery of new chemical elements at positions 113, 114, 115, 116 and 118 on the periodic table. The working party concluded that elements 114 and 116 fulfilled criteria for official inclusion in the table. The others, as yet, do not.

The new elements have temporary titles of ununquadium and ununhexium, but final names have Read more…

Darwin’s theory of gradual evolution not supported by geological history, scientist concludes

January 19, 2011 Comments off
“Matthew discovered and clearly stated the idea of natural selection, applied it to the origin of species, and placed it in the context of a geologic record marked by catastrophic mass extinctions followed by relatively rapid adaptations,” says Rampino, whose research on catastrophic events includes studies on volcano eruptions and asteroid impacts. “In light of the recent acceptance of the importance of catastrophic mass extinctions in the history of life, it may be time to reconsider the evolutionary views of Patrick Matthew as much more in line with present ideas regarding biological evolution than the Darwin view.”
Matthew (1790-1874), Rampino notes, published a statement of the law of natural selection in a little-read Appendix to his 1831 book Naval Timber and Arboriculture. Even though both Darwin and his colleague Alfred Russel Wallace acknowledged that Matthew was the first to put forth the of natural selection, historians have attributed the unveiling of the theory to Darwin and Wallace. Darwin’s notebooks show that he arrived at the idea in 1838, and he composed an essay on natural selection as early as 1842—years after Matthew’s work appeared. Darwin and Wallace’s theory was formally presented in 1858 at a science society meeting in London. Darwin’s Origin of Species appeared a year later. Read more…
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