Kellner eyepiece

[ kel-ner ]

/ ˈkɛl nər /

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a Ramsden eyepiece having an achromatic lens, used in binoculars.

QUIZZES

Are you aware how often people swap around “their,” “there,” and “they’re”? Prove you have more than a fair grasp over these commonly confused words.

Question 1 of 7

Which one of these commonly confused words can act as an adverb or a pronoun?

After Carl Kellner (1826–55), German opticist and lens maker

The alleged evidence against Kellner was gathered by Lebovits supporters and family members.
The Orthodox Sex Abuse Crackdown That Wasn’t|Emily Shire|October 7, 2014|DAILY BEAST
“My client is not surprised,” said Niall MacGiollabhui, the lawyer for Samuel Kellner, whose son was allegedly abused by Lebovits.
The Orthodox Sex Abuse Crackdown That Wasn’t|Emily Shire|October 7, 2014|DAILY BEAST
Kellner was also charged with attempting to extort the Lebovits family.
The Orthodox Sex Abuse Crackdown That Wasn’t|Emily Shire|October 7, 2014|DAILY BEAST
Kellner recently moved to New York from Tel Aviv, and anchors her argument in her own experiences with the American scene.
Who Gets To Talk About Israel?|Emily L. Hauser|December 7, 2012|DAILY BEAST

According to YouGov founder and pollster, Peter Kellner, “Londoners love Boris because he makes them laugh.”
Mayor of London Boris Johnson Survives Unexpectedly Close Vote|Peter Jukes|May 5, 2012|DAILY BEAST
Before beginning an exposure the focus is adjusted by means of a high-power positive eyepiece.
Photographs of Nebul and Clusters|James Edward Keeler
Looking through the eyepiece, the young inventor stood as though transfixed.
Tom Swift and His Giant Telescope|Victor Appleton
Beware of the popular error that an object held close in front of a telescope can be seen by an observer at the eyepiece.
A Text-Book of Astronomy|George C. Comstock
I sat down, Stein shifted nervously from one foot to the other, and in a moment Kellner came back with a dozen others.
Cue for Quiet|Thomas L. Sherred
The man with the watch galloped off and came back with Kellner and they all stood around muttering.
Cue for Quiet|Thomas L. Sherred