Origin of Ramsden eyepiece
Words nearby Ramsden eyepiece
How to use Ramsden eyepiece in a sentence
Ramsden's 381-page report found that the flight was troubled from the start.
"Failure to adhere to emergency protocols did not produce disastrous results in this particular event," Ramsden wrote.
Before beginning an exposure the focus is adjusted by means of a high-power positive eyepiece.Photographs of Nebul and Clusters|James Edward Keeler
It was Mrs Ramsden who was wretched, Elma who was happy—“so happy,” despite the atmosphere of disapproval.
“I think you and Mrs Ramsden have somewhat different standards, mother,” put in Geoffrey quietly.
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