How to use Reflector in a sentence
The Herschelian or front view reflector is represented in fig.
Consider this before putting down your money on a large, equatorially mounted reflector which weighs more than you do.
The candle holder with the parabolic reflector casts a golden light upwards or pools it along the length of a wall.
The best film based image I have taken of Saturn using the 10 " Newtonian reflector.
The law says you must have a rear red reflector.Advertisement
The lamp tray carries a large pre-focus lampholder with a 6-in. diam. spherical anodised aluminum reflector.
To the centre of this membrane is attached a small feather-fibre, which, when the reflector is suitably placed, touches lightly the surface of the revolving cylinder.
In 1937 another radio engineer, Grote Reber, began work with a parabolic reflector antenna 9.7 m in diameter.
It features a stainless steel burner, a 520mm diameter reflector, a protective chrome wire guard, an anti-tilt switch and piezo ignition.
It was rather foggy, I had a new-fangled gadget that I had made out of sheet metal to act as a radar reflector.Advertisement
There was a lunar mythology extant long before it was known that the lunar orb was a reflector of the solar light.
Pedometer Jogging Kit Keep yourself safe by being seen this winter with our brand new digital pedometer Jogging Kit Keep yourself safe by being seen this winter with our brand new digital pedometer, reflector and high-vis waistband.
You must have front and rear lamps, pedal reflectors and a red rear reflector.
For deep sky observations an 8 inch reflector would be excellent - a good light grasp without being too unwieldy.
What should you expect from a small refractor or reflector?Advertisement
The feed beam completely illuminates the reflector antenna without too much spillover.
It may also be necessary to have a slight tweak of the reflector.
Diffraction spikes on a reflector's star images, caused by its secondary mirror spider vanes, are absent in an unobstructed refractor.
These are bronze disks, one side polished to serve as a reflector, and the back ornamented with engraved outline drawings, often of great beauty (see Gerhard, Etruskische Spiegel, 1843-1867).
A sledgehammer was applied with no dent; hardly paper backed foil radar reflector easily torn by a 4 year old.Advertisement
The best film based image I have taken of Saturn using the 10 Newtonian Reflector.
The lighting performance of fittings that take reflector lamps is determined by the lamp itself rather than the fitting.
For a circular reflector dish of 80 square meters area, the diameter is 10 meters.
Front sidelights are either small bulbs set in the headlamp reflector, or larger bulbs (around 5 watts) under separate covers.
Diffraction spikes on a reflector 's star images, caused by its secondary mirror spider vanes, are absent in an unobstructed refractor.Advertisement
If a light is bounced off of a mirror, that lens is a reflector.
If you will be using backlighting for outdoor shots, you'll want to remember to bring along a reflector or fill-in flash.
Using a reflector and allowing light to stream in to the side of the camera also helps to enhance an ordinary shot.
The focusing two and a half inch reflector is adjustable.
Other features include a snooze button, car reflector nightlight, and radio tuning via the car's wheels.Advertisement
After the suspension of the Reflector in 1753, he edited in the New York Mercury the "Watch Tower" section (1754-1755), which became the recognized organ of the Presbyterian faction.
Charles Lamb's criticisms were made in three short pieces, two of which were written for Wilson's book, and the third for The Reflector.
Any sound (such as that of the human voice) transmitting its rays into the reflector, and communicating vibratory motion to the membrane, will cause the feather to trace a sinuous line on the paper.
In the beginning of 1845 this great reflector was mounted and ready for work.
It will be seen, then, that the visual and photographic foci are now merged in one, and the image is practically as achromatic as that yielded by a reflector.Advertisement
But they had to have bulky reflector antennas fitted on top of the vehicle.
Through the columns of the Independent Reflector, which he established in 1752, Livingston fought the attempt of the Anglican party to bring the projected King's College (now Columbia University) under the control of the Church of England.
The other pre-revolutionary magazines were the Boston American Magazine (1743-1747), in imitation of the London Magazine; the Boston Weekly Magazine (1743); the Christian History (1743-1744); the New York Independent Reflector (1752-1754); the Boston New England Magazine (1758-1760), a collection of fugitive pieces; the Boston Royal American Magazine (1774-1775); and the Pennsylvania Magazine (1775-1776), founded by Robert Aitken, with the help of Thomas Paine.
Fewer telescopes have been made of this than perhaps of any other form of reflector; but in comparatively recent years the Cassegrain has acquired importance from the fact of its adoption for the great Melbourne telescope, and from its employment in the 60-in.
In Lassell's instrument (a reflector of the Newtonian type) the observer is mounted in the open air on a supplementary tower capable of motion in any azimuth about the centre of motion of the telescope, whilst an observing platform can be raised and lowered on the side of the tower.Advertisement
The same observation can be made with the cone of rays of a reflector, and in the same way the fine rain-drops upon a dark background and the fixed stars in the sky become visible.
Gears are provided for elevating, levelling, aligning the upper and lower optical systems, adjusting the inclination of the reflector and rotating the mast around a vertical axis so that observations may be made and azimuth angles taken in all directions.
This body appears to be the source of light, and has behind it a reflector formed of concentric lamellae, while, in front, in some cases, there is a refracting lens.
Perrine with the Crossley reflector in 1904-1905, and the third at Greenwich in but the imaginative side of knowledge had also potent representatives during the latter half of the 18th century.
In 1783 he completed his reflector of 18-1 7 Din.Advertisement
In recent years no noteworthy refractors have been mounted on Great this plan; but type A has been chosen by Grubb for the Me!- great Melbourne reflector, of 48-in.