j exire ilineáà qua ipfa coniungit ad ane gulos re&tos,modo fint &latera & linea lucisin codem medio. Exempli.gratia fit radius luminis A BC D: ibus latera funt AD & B C,linea autem quz ipfa coniungit À B, quam lineam voco lineam lucis. Poftulo hic nihil .F a aliud quam vt lucidum operetur totis… … "beret effein H,dimmerfus fcilicet fub: plano E D. quanta cft diftantia mi- "nima inter punctum FH, vel C. , & rectam E D; vel intereandem re- "am ED,& fibi parallelam EH. Quoniam vero fupponitur- me.. diumfub. plano ED deníius quam quod fupra; & propagari debi lio-- xem motum in denfoquam in:raro…
Mathematics, Greek · Conic sections · Physics -- Early works to 1800
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
![An illustration from Astronomia nova aitiologetos [romanized] sev, Physica coelestis : tradita commentariis de motibvs stellae Martis, ex observationibus G.V. Tychonis Brahe : jussu & sumptibus Rvdolphi II. romanorvm imperatoris &c. : plurium annorum pertinaci studio elaborata Pragae ... (1609)](https://img.insideoutlibrary.com/img/200/ia-astronomianovaai00kepl-156-0.webp)
