dyne

[For etym. see T.] The force which, acting upon a gramme for a second, generates a velocity of a centimeter per second. It is the C. G. S. unit of force. Or it may be defined as the force which, acting upon a gramme, produces the C.G.S. unit of acceleration. Or again, as the force which, acting upon any ma for one second, produces the C. G. S. unit of momentum. ( Everett: C. G. S. Sys tem of Units (1875), ch. iii., p. 12.) The extract which follows explains at once the etymology, the origin, and the meaning of the word dyne. As regards the name to be given to the C.G. S. unit of force, we recommend that it be a derivative of the Greek dynamis . The form dynamy appears to be the most satisfactory to etymologists. The IMG:content-0690.png:[blocks in formation] with a shade of yellow or blue; frequently opalesby heating them to 300°, or treating them with di- cent. It is very tough. It occurs in trap or related lute sulphuric acid. Dyslysin is insoluble in water, eruptive rocks in the Faroe Islands, Iceland, Green acids, potash, and alcohol (hence its name), but land, . It is also called Okerrite (q. v.). ( Dana . ) soluble in ether. Alcoholic potash converts it into