| 单词 | projectile theory |
| 释义 | > as lemmasprojectile theory projectile theory n. a theory of the motion of projectiles; (History of Science) the corpuscular theory of light. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > [noun] > science of > emission theory corpuscular theory1833 projectile theory1854 emission theory1880 1854 B. Powell Pereira's Lect. Polarized Light (ed. 2) 6 The Newtonian hypothesis, or the projectile or emission theory, was started when our knowledge of the facts was but in its infancy. 1941 Child Developm. 12 286 The ‘projectile theory’ was devised... The theory proposes that a muscular twitch sets the leg in motion so that it follows the path of a projectile through the air. 1953 Isis 44 284/1 Since they [sc. cannons] were too inaccurate to be practically useful beyond point-blank range, a perfected projectile-theory was of little concern to military leaders. 1986 Eng. Hist. Rev. 101 1003 The projectile theory [of light] completely dominated leading educational institutions in the eighteenth century. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。