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On the other hand, the Big Bang produced lithium-6 at levels more than 1000 times smaller. 7 4 Be later decayed via electron capture (half-life 53.22 days) into 7 3 Li, so that the observable primordial lithium abundance essentially sums primordial 7 3 Li and radiogenic lithium from the decay of 7 4 Be. These isotopes are produced by the reactions
A primordium (/ p r aɪ ˈ m ɔːr d i ə m /; pl.: primordia; synonym: anlage) in embryology, is an organ or tissue in its earliest recognizable stage of development. [1] Cells of the primordium are called primordial cells. A primordium is the simplest set of cells capable of triggering growth of the would-be organ and the initial foundation ...
The Hoa had constituted the largest ethnic minority group in the mid 20th century and its population had previously peaked at 1.2 million, or about 2.6% of Vietnam's population in 1976 a year following the end of the Vietnam War. Just 3 years later, the Hoa population dropped to 935,000 as large swathes of Hoa left Vietnam.
p n # + 1 [14] p n # − 1 [15] 0 1 — 1: Yes No 1 1 2 2 Yes No 2 2 3 6 Yes Yes 3 6 5 30 Yes Yes 4 6 7 210 Yes No 5 30 11 2 310: Yes Yes 6 30 13 30 030: No Yes 7 210 17 510 510: No No 8 210 19 9 699 690: No No 9 210 23 223 092 870: No No 10 210 29 6 469 693 230: No No 11 2 310: 31 200 560 490 130: Yes No 12 2 310: 37 7 420 738 134 810: No No ...
In Greek antiquity the ideas of celestial spheres and rings first appeared in the cosmology of Anaximander in the early 6th century BC. [7] In his cosmology both the Sun and Moon are circular open vents in tubular rings of fire enclosed in tubes of condensed air; these rings constitute the rims of rotating chariot-like wheels pivoting on the Earth at their centre.
Here is a list of radioisotopes formed by the action of cosmic rays; the list also contains the production mode of the isotope. [4] Most cosmogenic nuclides are formed in the atmosphere, but some are formed in situ in soil and rock exposed to cosmic rays, notably calcium-41 in the table below.
Bagua is a group of trigrams—composed of three lines, each either "broken" or "unbroken", which represent yin and yang, respectively. [1] Each line having two possible states allows for a total of 2 3 = 8 trigrams, whose early enumeration and characterization in China has had an effect on the history of Chinese philosophy and cosmology.
King Alfor (voiced by Keith Ferguson in season 1–2, Sean Teale in season 3) – The late King of Altea, husband of Queen Melenor, and father of Allura, Alfor gave into fear and chose to hide the Lions across the cosmos to prevent Zarkon from claiming them. He placed his daughter in suspended animation and left a digitized version of himself ...