reciprocating solar engine

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• solar spots — Sun Sun, n. [OE. sunne, sonne, AS. sunne; akin to OFries. sunne, D. zon, OS. & OHG. sunna, G. sonne, Icel. sunna, Goth. sunna; perh. fr. same root as L. sol. [root]297. Cf. {Solar}, {South}.] 1. The luminous orb, the light of which constitutes… …   The Collaborative International Dictionary of English

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• Rotative engine — Rotative Ro ta*tive, a. [Cf. F. rotatif.] turning, as a wheel; rotary; rotational. [1913 Webster] This high rotative velocity of the sun must cause an equatorial rise of the solar atmosphere. Siemens. [1913 Webster] {Rotative engine}, a steam… …   The Collaborative International Dictionary of English