concavo-concave lens

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biconcave lens

QUIZZES

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”

Question 1 of 7

The rainy weather could not ________ my elated spirits on my graduation day.

It reminded me a bit of an alternative take on The Wolf of Wall Street—through the Toni and Candace lens.
Coffee Talk with Fred Armisen: On ‘Portlandia,’ Meeting Obama, and Taylor Swift’s Greatness|Marlow Stern|January 7, 2015|DAILY BEAST
And he said, I know you see this crisis through a very personal lens.
The NY Police Union’s Vile War with Mayor De Blasio|Michael Tomasky|December 21, 2014|DAILY BEAST
The camera dollied backward along the length of the tower's staircase while simultaneously its lens zoomed forward.
Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days|David Freeman|December 13, 2014|DAILY BEAST
I see my personal experiences as a lens to look at something much bigger.
Meghan Daum On Tackling The Unspeakable Parts Of Life|David Yaffe|December 6, 2014|DAILY BEAST

They, like Klain, deserve to be seen through a historical lens before we rush to judgment.
Does Ebola Need An Organization Man?|Nicolaus Mills|October 26, 2014|DAILY BEAST
Go carefully over the film with an oil-immersion lens, using a mechanical stage if available.
A Manual of Clinical Diagnosis|James Campbell Todd
Ellis's patent boot studs to save the sole, and the Euknemida, or concave-convex fastening springs, are the latest novelties.
Showell's Dictionary of Birmingham|Thomas T. Harman and Walter Showell
Still kneeling, he drew from his waistcoat pocket a powerful lens contained in a washleather bag.
Dope|Sax Rohmer
By far the greatest of these scientific inventions are those which depend upon the lens.
Outlines of the Earth's History|Nathaniel Southgate Shaler
It was a little longer than the usual three cell case, and there was a finely ground lens at the end.
Hooded Detective, Volume III No. 2, January, 1942|Various