compofite* Simplex eft detcrminatio , qua mo-bile iimplici modo corpus objeclum iivc obvium petit: ut dum corpus A,per Ii-nearn dire<5tam A B in corpus ipfi diametraliter oppofitum EF fimplici defcen-fus modo dirigitur:unde per direclam viam B A nunquam in obliquam aliquamBC velBD vel aliam… … In deter- minatio.ne com. Notand. $. in determinatione compofita cum mobile corpori alteri occurrit motumque fuum fervatjUnamfuaedetcrminacionis partcm ex lege immuta pofitaunabilitatis Natura (emper fervatintegram,& fecundumillam movetur altera muta p™ ££ta* Ratio hujus eft, quia corpus obvium…
Optics, Geometrical · Optical instruments
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