prop. 1. cap. 1. hujus & ex propo 3. prasfe. cap* Hinc ab uno pun&o luminofi potcft magnum aliquod fpatium inop-pofito pariete reflexe illuminari juxtamagnitudinem corporis refle6tentis,proucnempeplures radios, ab eodem pun&o delapfosrecipit,&eosdcm repercutic& patet in figura… … Item fcitur ratio quare ab uno pun&o fpeeuli nihitomintis poflfit majus tp%*tium in oppofito pariete reflexe illuminari, nam ut in fig. 2. vidcs radti divtrfiA D, B D, C D, a diverfis pun&is A,B> C luminofi refleftunmr ab unopun&o D in diverfa pun£ta E, F, G, ita ut radius incidens A…
Optics, Geometrical · Optical instruments
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![An illustration from Sidereus nuncius : magna, longeque admirabilia spectacula pandens, suspiciendaque proponens vnicuique, praesertim verò philosophis, atq[ue] astronomis, quae à Galileo Galileo ... perspicilli nuper à se reperti beneficio sunt obseruata in lunae facie, fixis innumeris, lacteo circulo, stellis nebulosis, apprime verò in quatuor planetis circa Iouis stellam disparibus interuallis, atque periodis, celeritate mirabili circumuolutis; quos, nemini in hanc vsque diem cognitos, nouissimè author depraehendit primus; atque Medicea sidera nuncupandos decreuit (1610)](https://img.insideoutlibrary.com/img/200/ia-sidereusnunciusm00gali-29-10.webp)
