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how many hours in a tidal period
(noun) A connector used to pass a conductor through a circuit board or enclosure.
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Stable window, A kind of dung hole for discharging the dung in the stable. In Turkish; Ahırdaki gübreyi dışarı atmak için kullanılan delik, pencere.
A kind of fish net. In Turkish; Ağaç çemberler üzerine örülmüş torba biçiminde balık ağı:
Interruption of predominately wavy flow in the westerlies. Distortion of westerly wind flow results in a meridional flow and the development of warm anticyclonic vortices equatorward of the original flow. Blocking patterns tend to persist for days or even weeks.
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DIode-Alternating-Current-switch
Unnecessary repeats in language.Something is right thanks to its logical form only. In Turkish: Totoloji, Dilde gereksiz tekrarlar, Mantıkta yalnızca mantıksal biçimi sayesinde doğru olan şey.
cross between two species of same chromosome number.
Name: promethium
Symbol: Pm
Atomic number: 61
Atomic weight: [ 145 ]
Group in periodic table:
Group name: Lanthanoid
Period in periodic table: 6 (lanthanoid)
Block in periodic table: f-block
CAS registry ID: 7440-12-2
Great care is required while handling promethium as a consequence of its radioactivity. Promethium salts luminesce in the dark with a pale blue or greenish glow, due to their high radioactivity. Ion-exchange methods led to the preparation of about 10 g of promethium from atomic reactor fuel processing wastes in early 1963.
Little is yet generally known about the properties of metallic promethium. More than 30 promethium compounds have been prepared. Promethium is a rare earth metal. It appears that there is no known Pm existing in the earth's crust.