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ONOC মোটামক্স শিক্ষক LLS S LLLLL qMA AALAAA L LMLL LL LLLLLL eLeeS EL ELE SELL E LLLLLL LLeLEELALALALLSLLLALES MILE, Nautial or geographical-e 6o8o 204 feet. MIL-I. A prefix denoting the thousandth part.' MONTH, The anomalistic month stime of revolution of the moon from one perigee to another as 275646o days. The nodical month"- draconitic month = time of re volution from a node to the same node again is 272 222 days. The sidereal months the time of revolution referred to the stars - 272166 days (incan value) hut varies by about three hours on account of the eqcentricity' of the orbit and 'peturbations.' The synodic month se the revolution form on3 new mo 11 tc) in ther - 295 306 days (mea value) ses the گے ۔ بے rdinary mbinth. It varies by ab5ut, (3 hours. «OHM. Uulit Uf electrical resis ancc. he inter national ohm is based uppn the ohm equal to Ioo units of resistance of the C. G. S. systim of electromagnetic units, and "is resprestinted by the resus. tance, offered to an unvarying electric curren by a columh of mercury, at the temparature of melting ice, 14'4521 grams in mass, of à Constant cross section and of the length of Iof 3 centimeters.'s Io E.M.U = 1/9x Io- E.S.U. A. International ohm = I’oi 367 B. A. ohms as "o6292. » Siennens” ohms. B.A. ohm = O' 98651 interational hms. Siemens' ohm = o'94o8o international ohms. PENTANE CANDLE. Photometric standard. r is 22/7 = ratio of the circumference of a cricle to its diameter = 3 (459265359. 争 POUNDAL. The British unit of force. The force which will in one seconi impart a velocity of one foot per second to a maes of one pound.