He would have had to mix the chemicals for the
photographic plates, apply them to the glass plates, and then take the photograph before the chemicals had dried.
* using
photographic plates as a recording mechanism;
Yet some alpha particles were deflected, and struck the
photographic plate some distance away from the central spot formed by the main stream of alpha particles.
He balanced those fields in such a way that particles of different charge-to-mass ratio curved differently and fell in different sports on a
photographic plate.
X-rays can be of various strengths to penetrate different organs so that a picture is shown on a
photographic plate.
There is a screen of varying transparency mounted in the main camera lens system that is moved in accord with the amount of light that the electric eye sees, letting more light fail on the
photographic plate when necessary.
An instrument outfitted with such a mirror and corrector plate is called a Schmidt telescope, or, since it is invariably used with a
photographic plate rather than an eye receiving the light, a Schmidt camera.
X-RAY X-rays can be of various strengths to penetrate different organs so that a picture is shown on a
photographic plate.
It's not the individual plates themselves as much as the years they span--from 1885 to 1992--that make the Harvard College Observatory's
photographic plate collection valuable for insights into novae, black holes, and planetary nebulae.
We repeated this process for each of the superior images selected from each
photographic plate.
Each
photographic plate measures about 14 inches square and records a patch of sky about 13 times as wide as the moon.
A glass prism placed over the objective lens of a refracting telescope allowed the spectra of an entire field of stars to be recorded on a single
photographic plate. Each plate measured 8 x 10 inches, covering an area of the sky equal to twice the bowl of the Big Dipper.
2 IAU circular that he has found an image of what appears to be the comet in a single
photographic plate taken April 27, 1993.
On Sunday, June 18th, the conscientious Christy spent the whole night working with the observatory's astrograph, a telescope that worked like a huge telephoto lens with a
photographic plate in the back.
Pluto at 50 "On February 18, 1930, the faint image of Pluto was first seen on a
photographic plate by Clyde Tombaugh, a young observing assistant at Lowell Observatory in Arizona.
