"That's fine, but often they pick a pair with a stronger magnifying power than they need, maybe a 2 . 0 strength when they only require 1 . 0 or 1 . 25.
12.
Despite the boasts of " 500-power " used by manufacturers of cheap toy-store telescopes, the truest measure of an instrument's worth is the diameter of its main lens or mirror, not its magnifying power.
13.
He made two large ones with a magnifying power of two hundred times; one of these he gave to Hans Moritz von Br�hl, and it passed to the Gotha Observatory, the other descended to his son William Mudge.
14.
And when he plays in a tournament like the FleetBoston Classic at Nashawtuc Country Club, the 55-year-old Irwin has to bring along a mirror with high-octane magnifying power to let him remove an eyelash or other particle that might land in his eye.
15.
The magnifying power obtained in this condition is " MP " 0 = ( 0.25 m ) ? + 1, where ? is the optical power in dioptres, and the factor of 0.25 m represents the assumed near point ( ?m from the eye ).
16.
The team combined the natural magnifying power of the galactic cluster Abell 2218, a gravitational lens 2 billion light-years away, with the cameras on the Hubble Space Telescope in Earth orbit and at the Keck Observatory in Hawaii to detect a faint light from 13.4 billion light-years away.
17.
The team combined the natural magnifying power of the galactic cluster Abell 2218, a gravitational lens 2 billion light-years away, with the cameras on the Hubble Space Telescope in Earth orbit and at the Keck Observatory in Hawaii to detect a faint light from 13 . 4 billion light-years away.
18.
I have 7x50 binoculars . ( That translates to a magnifying power of 7 and an objective lens 50 millimeters across . ) They are excellent for watching the night sky and, since the field of view is much larger than you'd have with a telescope, I can easily find any object in the sky.
