QUÉ SIGNIFICA SPECULUM METAL EN INGLÉS
Espejo de metal
Speculum metal es una mezcla de alrededor de dos tercios de cobre y un tercio de estaño que hace una aleación blanca quebradizo que se puede pulir para hacer una superficie altamente reflectante. Se utiliza principalmente para hacer diferentes tipos de espejos, incluyendo los primeros espejos ópticos reflectores de telescopio. Especular metal también se puede utilizar como el revestimiento metálico en espejos de vidrio que da una reflectividad de 68% a 6000 angstroms cuando se evapora en la superficie.
definición de speculum metal en el diccionario inglés
La definición de speculum metal en el diccionario es una aleación resistente a la corrosión, dura y quebradiza, de cobre y estaño con cantidades menores de otros metales. Toma un alto brillo y se usa para espejos, reflectores de lámparas, artículos ornamentales, etc.
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10 LIBROS DEL INGLÉS RELACIONADOS CON «SPECULUM METAL»
Descubre el uso de
speculum metal en la siguiente selección bibliográfica. Libros relacionados con
speculum metal y pequeños extractos de los mismos para contextualizar su uso en la literatura.
1
Cyclopædia of useful arts & manufactures, ed. by C. ...
Speculum metal and brass cannot be soldered together by the ordinary methods,
except on a very small scale. But they may be soldered by first fitting the brass
and speculum metal nicely together by fitting or grinding. The brass is then to be
...
Cyclopaedia, Charles Tomlinson,
1852
2
Cyclopaedia of useful arts, mechanical and chemical, ...
Speculum metal and brass camiot be soldered together by the ordinary methods,
except on a very small scale. But they may be soldered by first fitting the brass
and speculum metal nicely together by fitting or grinding. The brass is then to be
...
3
Cyclopædia of Useful Arts, Mechanical and Chemical, ...
Speculum metal and brass cannot be soldered together by the ordinary methods,
except on a very small scale. But they may be soldered by first fitting the brass
and speculum metal nicely together by fitting or grinding. The brass is then to be
...
4
The Astrophysical Journal
I made were markedly inferior to those of speculum metal through the entire
region. Hulburt finds that at X 1850 the copper was slightly better as a reflector
than the best speculum metal mirror which he tested. Nickel. — About three hours
were ...
5
Philosophical Transactions of the Royal Society of London
I give those for speculum metal and zinc. Speculum. Zinc. Red . . . . . . . . 0692
0576 Orange . . . . . . . 0-654 0594 Yellow . . . . . . . 0-632 0'602 Green . . . . . . . 0625
0-616 Blue . . . . . . . . 0-606 0-628 Indigo . . . . . . . 0-699 0-635 Violet . . . . . . . 0-593
...
6
The Scientific Papers of William Parsons, Third Earl of ...
then broken, and it was found that the speculum metal had penetrated into the
iron in various directions, and a small portion of speculum metal, when analysed,
yielded iron. The reverberatory furnace was therefore resorted to, but I found that,
...
William Parsons, Charles Parsons,
2011
7
Illustrated Dictionary of Practical Astronomy
The blank formed from speculum metal was ground and polished by the same
techniques as for metal-on-glass mirrors, but the reflecting surface was the actual
surface of the figured blank. Speculum metal reflects only about 60% of the ...
He experimented in the late 1800s with soldering speculum metal plates on a
solid brass backing fixture and then grinding the whole assembly to the proper
curve.9 Because of diffraction problems associated with the joints of the plates, ...
9
Henley's twentieth century formulas, recipes and processes
Speculum Metal.--Alloys consisting of 2 parts of co per and 1 of tin can be very
brilliant y polished, and will serve for mirrors. Good speculum metal should have
a very fine-grained fracture, should be white and very hard, the highest degree of
...
One reason why photographic reproduction is not practised to a very great extent,
is, that the modern gratings — such as Rowland's — are ruled almost universally
upon speculum metal. A grating upon speculum metal is very excellent for use, ...
3 NOTICIAS EN LAS QUE SE INCLUYE EL TÉRMINO «SPECULUM METAL»
Conoce de qué se habla en los medios de comunicación nacionales e internacionales y cómo se emplea el término
speculum metal en el contexto de las siguientes noticias.
A guide to observing the moons of the solar system
Remember though, many of those old scopes used speculum metal mirrors which were vastly inferior to commercial optics available today. You may have a ... «Phys.Org, Jul 15»
The Future Of Telescopes Is Looking Bigger And Brighter Than Ever
So people were looking around ofr a type of metal that was shiny, pretty strong, and inexpensive and they came up with an alloy called speculum metal — its an ... «Gizmodo Australia, Ago 14»
The next generation of giant telescopes takes shape
Known as the Leviathan of Parsonstown, this partially steerable giant housed a 72 inch mirror, then the world's largest. This telescope sported a speculum metal ... «Canada.com, Jun 12»