Stanhope LensA cylindrical lens with spherical ends of different radii. The covering of the tube into which the lens is fitted is called the “cap.” Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894 More on Stanhope Lens from Fact Monster:
|
24 X 7Private Tutor
Explore Algebra 1 Help , Solubility Of Solute
|