Crossword-Solution: OPTICKS 7 letters, 1 clue 🏆 scrabble score: 15

Certainly there is no happiness within this circle of flesh; nor is it in the opticks of these eyes to behold felicity.

Sherlock, and all our nice Examiners of these things wou'd appear to be no Body to them; for as the People in these Regions have an extraordinary Eye-sight, and the clearness of the Air contributs much to the help of their Opticks, so they have without doubt a proportion'd clearness of discerning, by which they see as far into Mill-stones, and all sorts of Solids, as the nature of things will permit, but above all, their Faculties are blest with two exceeding Advantages.

Now if there be any whereof I have spoken in the beginning, of the Opticks and of the Meteors, which at first jarr, by reason that I call them Suppositions, and that I seem not willing to prove them; let a man have but the patience to read the whole attentively, and I hope he will rest satisfied: For (me thinks) the reasons follow each other so closely, that as the later are demonstrated by the former, which are their Causes; the former are reciprocally proved by the later, which are their Effects.

Sir Isaac Newton, in his _Opticks_ (1704), explains the principle of the camera obscura with single convex lens and its analogy with vision in illustration of his seventh axiom, which aptly embodies the correct solution of Aristotle's old problem.

Sir Isaac Newton devoted the 31st query in the last edition of his _Opticks_ to molecular forces, and instanced several examples of the cohesion of liquids, such as the suspension of mercury in a barometer tube at more than double the height at which it usually stands.