what is mirror

8/22/2019 What is Mirror

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A) WHAT IS MIRROR?A.1) A mirror is an object that reflects light in a way that preserves much of its original quality

subsequent to its contact with the mirror.

Some mirrors also filter out some wavelengths, while preserving other wavelengths in thereflection. This is different from other light-reflecting objects that do not preserve much of the

original wave signal other than color and diffuse reflected light. The most familiar type of mirror

is the plane mirror, which has a flat surface. Curved mirrors are also used, to produce magnified

or diminished images or focus light or simply distort the reflected image.

Mirrors are commonly used forpersonal grooming or admiring oneself (in which case the

archaic term looking-glassis sometimes still used), decoration, and architecture. Mirrors are alsoused in scientific apparatus such as telescopes and lasers, cameras, and industrial machinery.

Most mirrors are designed forvisible light; however, mirrors designed for other types of waves

or otherwavelengths ofelectromagnetic radiation are also used, especially in non-optical

instruments.

A.2) Highly reflective surface.

A.3) Something accurately representing else

Manufacturing of mirrors

Mirrors are manufactured by applying a reflective coating to a suitable substrate. The mostcommon substrate is glass, due to its transparency, ease of fabrication, rigidity, hardness, and

ability to take a smooth finish. The reflective coating is typically applied to the back surface of

the glass, so that the reflecting side of the coating is protected from corrosion and accidentaldamage by the glass on one side and the coating itself and optional paint for further protection on

the other.

In classical antiquity, mirrors were made of solid metal (bronze, later silver) and were too

expensive for widespread use by common people; they were also prone to corrosion. Due to thelow reflectivity of polished metal, these mirrors also gave a darker image than modern ones,

making them unsuitable for indoor use with the artificial lighting of the time (candles or

lanterns).

[citation needed]

The method of making mirrors out ofplate glass was invented by 16th-century Venetian

glassmakers on the island ofMurano, who covered the back of the glass with mercury, obtaining

near-perfect and undistorted reflection. For over one hundred years, Venetian mirrors installed inrichly decorated frames served as luxury decorations for palaces throughout Europe, but the

secret of the mercury process eventually arrived in London and Paris during the 17th century,

due to industrial espionage. French workshops succeeded in large scale industrialization of the
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process, eventually making mirrors affordable to the masses, although mercury's toxicity

remained a problem[citation needed]

.

In modern times, the mirrorsubstrate is shaped, polished and cleaned, and is then coated. Glass

mirrors are most often coated with non-toxic silver[20]

or aluminium, implemented by a series of

coatings:

[citation needed]

1. Tin(II) chloride2. Silver3. Chemical activator4. Copper5. Paint

The tin(II) chloride is applied because silver will not bond with the glass. The activator causes

the tin/silver to harden. Copper is added for long-term durability.[21]

The paintprotects thecoating on the back of the mirror from scratches and other accidental damage.

[citation needed]

In some applications, generally those that are cost-sensitive or that require great durability,mirrors are made from a single, bulk material such as polished metal.

[citation needed]For technical

applications such as lasermirrors, the reflective coating is typically applied by vacuum

deposition on thefrontsurface of the substrate. This eliminates refraction and double reflections(a weak reflection from the surface of the glass, and a stronger one from the reflecting metal)and reduces absorption of light by the mirror. Technical mirrors may use a silver, aluminium, or

gold coating (the latter typically forinfrared mirrors), and achieve reflectivities of 9095% when

new. A protective transparent overcoat may be applied to prevent oxidation of the reflectivelayer. Applications requiring higher reflectivity or greater durability, where wide bandwidth is

not essential, use dielectric coatings, which can achieve reflectivities as high as 99.999% over a

narrow range of wavelengths.

[citation needed]

.

Types of glass mirror
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18th century vermeil mirror in the Muse des Arts dcoratifs, Strasbourg

This section does not cite any references or sources. Please help improve this section

by adding citations to reliable sources. Unsourced material may be challenged and

removed.(January 2013)

There are many types of glass mirrors, each representing a different manufacturing process and

reflection type.

An aluminium glass mirror is made of a float glass manufactured using vacuum coating, i.e.

aluminium powder is evaporated (or "sputtered") onto the exposed surface of the glass in a

vacuum chamber and then coated with two or more layers of waterproof protective paint.

A low aluminium glass mirror is manufactured by coating silver and two layers of protectivepaint on the back surface of glass. A low aluminium glass mirror is very clear, light transmissive,

smooth, and reflects accurate natural colors. This type of glass is widely used for framingpresentations and exhibitions in which a precise color representation of the artwork is truly

essential or when the background color of the frame is predominantly white.[citation needed]

A safety glass mirror is made by adhering a special protective film to the back surface of asilver glass mirror, which prevents injuries in case the mirror is broken. This kind of mirror is

used for furniture, doors, glass walls, commercial shelves, or public areas.[citation needed]

A silkscreen printed glass mirror is produced using inorganic color ink that prints patternsthrough a special screen onto glass. Various colors, patterns, and glass shapes are available. Such

a glass mirror is durable and more moisture resistant than ordinary printed glass and can serve

for over 20 years. This type of glass is widely used for decorative purposes (e.g., on mirrors,table tops, doors, windows, kitchen chop boards, etc.).

[citation needed]

A silver glass mirror is an ordinary mirror, coated on its back surface with silver, which

produces images by reflection. This kind of glass mirror is produced by coating a silver, copper

film and two or more layers of waterproof paint on the back surface of float glass, which

perfectly resists acid and moisture. A silver glass mirror provides clear and actual images, isquite durable, and is widely used for furniture, bathroom and other decorative purposes.

[citation

needed]

Decorative glass mirrors are usually handcrafted. A variety of shades, shapes and glass thickness

are often available.[citation needed]
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Photographer taking picture of himself in curved mirror at the Universum museum in Mexico

City

Shape of a mirror's surface

A beam of light reflects off a mirror at an angle of reflection equal to its angle of incidence (ifthe size of a mirror is much larger than the wavelength of light). That is, if the beam of light is

shining on a mirror's surface at a angle vertically, then it reflects from the point of incidence

at a angle from vertically in the opposite direction. This law mathematically follows from theinterference of a plane wave on a flat boundary (of much larger size than the wavelength).

In a plane mirror, a parallelbeam of light changes its direction as a whole, while stillremaining parallel; the images formed by a plane mirror are virtual images, of the same

size as the original object (see mirror image).

In aconcave mirror, parallel beams of light become a convergent beam, whose raysintersect in the focus of the mirror. Also known as converging mirror

In aconvex mirror, parallel beams become divergent, with the rays appearing to divergefrom a common point of intersection "behind" the mirror.

Spherical concave and convex mirrors do not focus parallel rays to a single point dueto spherical aberration. However, the ideal of focusing to a point is a commonly-used

approximation.Parabolic reflectorsresolve this, allowing incoming parallel rays (for

example, light from a distant star) to be focused to a small spot; almost an ideal point.
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Parabolic reflectors are not suitable for imaging nearby objects because the light rays are

not parallel.

Mirror image

If one looks in a mirror, one's image reverses (e.g., if one raises one's right hand, one's left handwill appear to go up in the mirror). However, a mirror does not "swap" left and right, any more

than it swaps top and bottom. A mirror reverses the forward/backward axis, and we define left

and right relative to front and back. Flipping front/back and left/right is equivalent to a rotation

of 180 degrees about the vertical axis (in the same way that text which is back-to-front andupside-down simply looks like it has been rotated 180 degrees on the page). Therefore, looking

at an image of oneself with the front/back axis flipped is the same as looking at an image with

the left/right axis flipped and the whole figure rotated 180 degrees about the vertical axis, which

is exactly what one sees when standing in front of a mirror.

Applications

Reflections in a spherical convex mirror. The photographer is seen at top right.
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A mirror on a racing car.

Safety and easier viewingConvex mirrors

Convex mirrors provide a widerfield of view than flat mirrors, and are often used onvehicles, especially large trucks, to minimize blind spots. They are sometimes placed at

road junctions, and corners of sites such as parking lots to allow people to see around

corners to avoid crashing into other vehicles orshopping carts. They are also sometimes

used as part of security systems, so that a single video camera can show more than one

angle at a time.[citation needed]

Mouth mirrors or "dental mirrors"

Mouth mirrors or "dental mirrors" are used by dentists to allow indirect vision and

lighting within the mouth. Their reflective surfaces may be either flat or curved. Mouthmirrors are also commonly used by mechanics to allow vision in tight spaces and around

corners in equipment.

Rear-view mirrors

Rear-view mirrors are widely used in and on vehicles (such as automobiles, or bicycles),

to allow drivers to see other vehicles coming up behind them. Some motorcycle helmets

have a built-in so-called MROS (Multiple Reflective Optic System): a set of reflective

surfaces inside the helmet that together function as a rear-view mirror.[22]

On rear-view

sunglasses, the left end of the left glass and the right end of the right glass work as

mirrors.

One-way mirrors and windows

One-way mirrors

One-way mirrors (also called two-way mirrors) work by overwhelming dim transmitted

light with bright reflected light. A true one-way mirror that actually allows light to be

transmitted in one direction only without requiring external energy is not possible as it

violates the second law of thermodynamics: if one placed a cold object on thetransmitting side and a hot one on the blocked side, radiant energy would be transferred

from the cold to the hot object. Thus, though a one-way mirror can be made to appear to

work in only one direction at a time, it's actually reflective from either side.
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One-way windows

One-way windows can be made to work with polarized light in the laboratory without

violating the second law. This is an apparent paradox that stumped some great physicists,

although it does not allow a practical one-way mirror for use in the real world.

Optical isolators are one-way devices that are commonly used with lasers.

Signalling

Main article: Heliograph

With the sun as light source, a mirror can be used to signal by variations in the orientation of themirror. The signal can be used over long distances, possibly up to 60 kilometres on a clear day.

This technique was used by Native American tribes and numerous militaries to transmitinformation between distant outposts.

Mirrors can also be used for search to attract the attention ofsearch and rescue helicopters.Specialized signalling mirrors are available and are often included in military survival kits.

Technology

Televisions and projectors

Microscopic mirrors are a core element of many of the largest high-definition televisions andvideo projectors. A common technology of this type is Texas Instruments' DLP. A DLP chip is a

postage stamp-sized microchip whose surface is an array of millions of microscopic mirrors. The

picture is created as the individual mirrors move to either reflect light toward the projection

surface (pixel on), or toward a light absorbing surface (pixel off).

Other projection technologies involving mirrors include LCoS. Like a DLP chip, LCoS is amicrochip of similar size, but rather than millions of individual mirrors, there is a single mirror

that is actively shielded by a liquid crystal matrix with up to millions ofpixels. The picture,

formed as light, is either reflected toward the projection surface (pixel on), or absorbed by theactivated LCDpixels (pixel off). LCoS-based televisions and projectors often use 3 chips, one

for each primary color.

Large mirrors are used in rear projection televisions. Light (for example from a DLP as

mentioned above) is "folded" by one or more mirrors so that the television set is compact.

I nstruments

See also: Mirror support cell
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E-ELT mirror segments under test.

Telescopes and other precision instruments usefront silveredorfirst surface mirrors, where thereflecting surface is placed on the front (or first) surface of the glass (this eliminates reflection

from glass surface ordinary back mirrors have). Some of them use silver, but most arealuminium, which is more reflective at short wavelengths than silver. All of these coatings are

easily damaged and require special handling. They reflect 90% to 95% of the incident light when

new. The coatings are typically applied by vacuum deposition. A protective overcoat is usuallyapplied before the mirror is removed from the vacuum, because the coating otherwise begins to

corrode as soon as it is exposed to oxygen and humidity in the air.Front silveredmirrors have to

be resurfaced occasionally to keep their quality. There are optical mirrors such as mangin mirrorsthat aresecond surface mirrors (reflective coating on the rear surface) as part of their optical

designs, usually to correct optical aberrations.[25]

Deformable thin-shell mirror. It is 1120 millimetres across but just 2 millimetres thick, making it

much thinner than most glass windows.[26]

The reflectivity of the mirror coating can be measured using a reflectometerand for a particularmetal it will be different for different wavelengths of light. This is exploited in some opticalwork to make cold mirrors and hot mirrors. A cold mirror is made by using a transparent

substrate and choosing a coating material that is more reflective to visible light and more

transmissive to infrared light. A hot mirror is the opposite, the coating preferentially reflects

infrared. Mirror surfaces are sometimes given thin film overcoatings both to retard degradationof the surface and to increase their reflectivity in parts of the spectrum where they will be used.
http://en.wikipedia.org/wiki/E-ELThttp://en.wikipedia.org/wiki/Telescopehttp://en.wikipedia.org/wiki/First_surface_mirrorshttp://en.wikipedia.org/wiki/Vacuum_depositionhttp://en.wikipedia.org/wiki/Mangin_mirrorhttp://en.wikipedia.org/wiki/Optical_aberrationhttp://en.wikipedia.org/wiki/Mirror#cite_note-25http://en.wikipedia.org/wiki/Mirror#cite_note-25http://en.wikipedia.org/wiki/Mirror#cite_note-25http://en.wikipedia.org/wiki/Mirror#cite_note-26http://en.wikipedia.org/wiki/Mirror#cite_note-26http://en.wikipedia.org/wiki/Mirror#cite_note-26http://en.wikipedia.org/wiki/Spectrophotometerhttp://en.wikipedia.org/wiki/Opticalhttp://en.wikipedia.org/wiki/Cold_mirrorhttp://en.wikipedia.org/wiki/Hot_mirrorhttp://en.wikipedia.org/wiki/Infraredhttp://en.wikipedia.org/wiki/File:Super-thin_Mirror_Under_Test_at_ESO.jpghttp://en.wikipedia.org/wiki/File:Super-thin_Mirror_Under_Test_at_ESO.jpghttp://en.wikipedia.org/wiki/File:E-ELT_mirror_segments_under_test.jpghttp://en.wikipedia.org/wiki/File:E-ELT_mirror_segments_under_test.jpghttp://en.wikipedia.org/wiki/File:Super-thin_Mirror_Under_Test_at_ESO.jpghttp://en.wikipedia.org/wiki/File:Super-thin_Mirror_Under_Test_at_ESO.jpghttp://en.wikipedia.org/wiki/File:E-ELT_mirror_segments_under_test.jpghttp://en.wikipedia.org/wiki/File:E-ELT_mirror_segments_under_test.jpghttp://en.wikipedia.org/wiki/File:Super-thin_Mirror_Under_Test_at_ESO.jpghttp://en.wikipedia.org/wiki/File:Super-thin_Mirror_Under_Test_at_ESO.jpghttp://en.wikipedia.org/wiki/File:E-ELT_mirror_segments_under_test.jpghttp://en.wikipedia.org/wiki/File:E-ELT_mirror_segments_under_test.jpghttp://en.wikipedia.org/wiki/File:Super-thin_Mirror_Under_Test_at_ESO.jpghttp://en.wikipedia.org/wiki/File:Super-thin_Mirror_Under_Test_at_ESO.jpghttp://en.wikipedia.org/wiki/File:E-ELT_mirror_segments_under_test.jpghttp://en.wikipedia.org/wiki/File:E-ELT_mirror_segments_under_test.jpghttp://en.wikipedia.org/wiki/Infraredhttp://en.wikipedia.org/wiki/Hot_mirrorhttp://en.wikipedia.org/wiki/Cold_mirrorhttp://en.wikipedia.org/wiki/Opticalhttp://en.wikipedia.org/wiki/Spectrophotometerhttp://en.wikipedia.org/wiki/Mirror#cite_note-26http://en.wikipedia.org/wiki/Mirror#cite_note-25http://en.wikipedia.org/wiki/Optical_aberrationhttp://en.wikipedia.org/wiki/Mangin_mirrorhttp://en.wikipedia.org/wiki/Vacuum_depositionhttp://en.wikipedia.org/wiki/First_surface_mirrorshttp://en.wikipedia.org/wiki/Telescopehttp://en.wikipedia.org/wiki/E-ELT


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For instance, aluminum mirrors are commonly coated with silicon dioxide or magnesium

fluoride. The reflectivity as a function of wavelength depends on both the thickness of the

coating and on how it is applied.

A dielectric coated mirror used in a dye laser. The mirror is over 99% reflective at 550

nanometers, (yellow), but will allow most other colors to pass through.

A dielectric mirror used in lasers

For scientific optical work, dielectric mirrors are often used. These are glass (or sometimes other

material) substrates on which one or more layers of dielectric material are deposited, to form an

optical coating. By careful choice of the type and thickness of the dielectric layers, the range of

wavelengths and amount of light reflected from the mirror can be specified. The best mirrors ofthis type can reflect >99.999% of the light (in a narrow range of wavelengths) which is incident

on the mirror. Such mirrors are often used in lasers.

In astronomy, adaptive optics is a technique to measure variable image distortions and adapt a

deformable mirroraccordingly on a timescale of milliseconds, to compensate for the distortions.
http://en.wikipedia.org/wiki/Dye_laserhttp://en.wikipedia.org/wiki/Nanometerhttp://en.wikipedia.org/wiki/Lasershttp://en.wikipedia.org/wiki/Opticshttp://en.wikipedia.org/wiki/Dielectric_mirrorhttp://en.wikipedia.org/wiki/Lasershttp://en.wikipedia.org/wiki/Adaptive_opticshttp://en.wikipedia.org/wiki/Deformable_mirrorhttp://en.wikipedia.org/wiki/File:Laserr_mirror_from_a_dye_laser_for_use_with_rhodamine.JPGhttp://en.wikipedia.org/wiki/File:Laserr_mirror_from_a_dye_laser_for_use_with_rhodamine.JPGhttp://en.wikipedia.org/wiki/File:Dielectric_laser_mirror_from_a_dye_laser.JPGhttp://en.wikipedia.org/wiki/File:Dielectric_laser_mirror_from_a_dye_laser.JPGhttp://en.wikipedia.org/wiki/File:Laserr_mirror_from_a_dye_laser_for_use_with_rhodamine.JPGhttp://en.wikipedia.org/wiki/File:Laserr_mirror_from_a_dye_laser_for_use_with_rhodamine.JPGhttp://en.wikipedia.org/wiki/File:Dielectric_laser_mirror_from_a_dye_laser.JPGhttp://en.wikipedia.org/wiki/File:Dielectric_laser_mirror_from_a_dye_laser.JPGhttp://en.wikipedia.org/wiki/File:Laserr_mirror_from_a_dye_laser_for_use_with_rhodamine.JPGhttp://en.wikipedia.org/wiki/File:Laserr_mirror_from_a_dye_laser_for_use_with_rhodamine.JPGhttp://en.wikipedia.org/wiki/File:Dielectric_laser_mirror_from_a_dye_laser.JPGhttp://en.wikipedia.org/wiki/File:Dielectric_laser_mirror_from_a_dye_laser.JPGhttp://en.wikipedia.org/wiki/File:Laserr_mirror_from_a_dye_laser_for_use_with_rhodamine.JPGhttp://en.wikipedia.org/wiki/File:Laserr_mirror_from_a_dye_laser_for_use_with_rhodamine.JPGhttp://en.wikipedia.org/wiki/File:Dielectric_laser_mirror_from_a_dye_laser.JPGhttp://en.wikipedia.org/wiki/File:Dielectric_laser_mirror_from_a_dye_laser.JPGhttp://en.wikipedia.org/wiki/Deformable_mirrorhttp://en.wikipedia.org/wiki/Adaptive_opticshttp://en.wikipedia.org/wiki/Lasershttp://en.wikipedia.org/wiki/Dielectric_mirrorhttp://en.wikipedia.org/wiki/Opticshttp://en.wikipedia.org/wiki/Lasershttp://en.wikipedia.org/wiki/Nanometerhttp://en.wikipedia.org/wiki/Dye_laser


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Although most mirrors are designed to reflect visible light, surfaces reflecting other forms of

electromagnetic radiation are also called "mirrors". The mirrors for other ranges of

electromagnetic waves are used in optics and astronomy. Mirrors for radio waves (sometimesknown as reflectors) are important elements ofradio telescopes.

Face-to-face mirrors

Two or more mirrors placed exactly face to face can give an infinite regress of reflections. Some

devices use this to generate multiple reflections:

FabryProt interferometer Laser(which contains an optical cavity) 3D Kaleidoscope to concentrate light[27] momentum-enhanced solar sail

Mili tary applications

It has been said that Archimedes used a large array of mirrors to burn Roman ships during an

attack on Syracuse. This has never been proven or disproved; however, it has been put to the test.

Recently, on a popularDiscovery Channel show,MythBusters, a team from MIT tried to recreate

the famous "Archimedes Death Ray". They were unsuccessful at starting a fire on the ship;however, previous attempts to light the boat on fire using only the bronze mirrors available in

Archimedes' time were unsuccessful, and the time taken to ignite the craft would have made its

use impractical, resulting in the MythBusters team deeming the myth "busted". It was howeverfound that the mirrors made it very difficult for the passengers of the targeted boat to see, likely

helping to cause their defeat, which may have been the origin of the myth. (See solar power

towerfor a practical use of this technique.)

Seasonal l ight ing

A multi-facet mirror in the Kibble Palace conservatory, Glasgow, Scotland
http://en.wikipedia.org/wiki/Electromagnetic_waveshttp://en.wikipedia.org/wiki/Astronomyhttp://en.wikipedia.org/wiki/Radio_telescopehttp://en.wikipedia.org/wiki/Infinite_regresshttp://en.wikipedia.org/wiki/Fabry%E2%80%93P%C3%A9rot_interferometerhttp://en.wikipedia.org/wiki/Fabry%E2%80%93P%C3%A9rot_interferometerhttp://en.wikipedia.org/wiki/Fabry%E2%80%93P%C3%A9rot_interferometerhttp://en.wikipedia.org/wiki/Laserhttp://en.wikipedia.org/wiki/Optical_cavityhttp://en.wikipedia.org/wiki/Kaleidoscopehttp://en.wikipedia.org/wiki/Mirror#cite_note-27http://en.wikipedia.org/wiki/Mirror#cite_note-27http://en.wikipedia.org/wiki/Mirror#cite_note-27http://en.wikipedia.org/wiki/Solar_sailhttp://en.wikipedia.org/wiki/Archimedeshttp://en.wikipedia.org/wiki/Ancient_Romehttp://en.wikipedia.org/wiki/Discovery_Channelhttp://en.wikipedia.org/wiki/MythBustershttp://en.wikipedia.org/wiki/MythBustershttp://en.wikipedia.org/wiki/MythBustershttp://en.wikipedia.org/wiki/MIThttp://web.mit.edu/2.009/www/experiments/deathray/10_Mythbusters.htmlhttp://en.wikipedia.org/wiki/Solar_power_towerhttp://en.wikipedia.org/wiki/Solar_power_towerhttp://en.wikipedia.org/wiki/Kibble_Palacehttp://en.wikipedia.org/wiki/Glasgowhttp://en.wikipedia.org/wiki/File:Kibble_Palace_Mirror.JPGhttp://en.wikipedia.org/wiki/File:Kibble_Palace_Mirror.JPGhttp://en.wikipedia.org/wiki/File:Kibble_Palace_Mirror.JPGhttp://en.wikipedia.org/wiki/File:Kibble_Palace_Mirror.JPGhttp://en.wikipedia.org/wiki/Glasgowhttp://en.wikipedia.org/wiki/Kibble_Palacehttp://en.wikipedia.org/wiki/Solar_power_towerhttp://en.wikipedia.org/wiki/Solar_power_towerhttp://web.mit.edu/2.009/www/experiments/deathray/10_Mythbusters.htmlhttp://en.wikipedia.org/wiki/MIThttp://en.wikipedia.org/wiki/MythBustershttp://en.wikipedia.org/wiki/Discovery_Channelhttp://en.wikipedia.org/wiki/Ancient_Romehttp://en.wikipedia.org/wiki/Archimedeshttp://en.wikipedia.org/wiki/Solar_sailhttp://en.wikipedia.org/wiki/Mirror#cite_note-27http://en.wikipedia.org/wiki/Kaleidoscopehttp://en.wikipedia.org/wiki/Optical_cavityhttp://en.wikipedia.org/wiki/Laserhttp://en.wikipedia.org/wiki/Fabry%E2%80%93P%C3%A9rot_interferometerhttp://en.wikipedia.org/wiki/Infinite_regresshttp://en.wikipedia.org/wiki/Radio_telescopehttp://en.wikipedia.org/wiki/Astronomyhttp://en.wikipedia.org/wiki/Electromagnetic_waves


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Due to its location in a steep-sided valley, the Italian town ofViganella gets no direct sunlightfor seven weeks each winter. In 2006 a 100,000 computer-controlled mirror, 85 m, was

installed to reflect sunlight into the town's piazza. In early 2007 the similarly situated village ofBondo, Switzerland, was considering applying this solution as well.

[28][29]Mirrors can be used to

produce enhanced lighting effects in greenhouses or conservatories.

Leisure

Art

Paintings

Titian's Venus with a mirror

Painters depicting someone gazing into a mirror often also show the person's reflection. This is akind of abstractionin most cases the angle of view is such that the person's reflection should

not be visible. Similarly, in movies and still photography an actor or actress is often shownobstensibly looking at him- or herself in the mirror, and yet the reflection faces the camera. In

reality, the actor or actress sees only the camera and its operator in this case, not their own

reflection.

The mirror is the central device in some of the greatest of European paintings
http://en.wikipedia.org/wiki/Viganellahttp://en.wikipedia.org/wiki/Bondo,_Switzerlandhttp://en.wikipedia.org/wiki/Mirror#cite_note-28http://en.wikipedia.org/wiki/Mirror#cite_note-28http://en.wikipedia.org/wiki/Mirror#cite_note-28http://en.wikipedia.org/wiki/Titianhttp://en.wikipedia.org/wiki/Photographyhttp://en.wikipedia.org/wiki/File:Titian_Venus_Mirror_(furs).jpghttp://en.wikipedia.org/wiki/File:Titian_Venus_Mirror_(furs).jpghttp://en.wikipedia.org/wiki/File:Titian_Venus_Mirror_(furs).jpghttp://en.wikipedia.org/wiki/File:Titian_Venus_Mirror_(furs).jpghttp://en.wikipedia.org/wiki/Photographyhttp://en.wikipedia.org/wiki/Titianhttp://en.wikipedia.org/wiki/Mirror#cite_note-28http://en.wikipedia.org/wiki/Mirror#cite_note-28http://en.wikipedia.org/wiki/Bondo,_Switzerlandhttp://en.wikipedia.org/wiki/Viganella


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HOW TO CLEAN MIRRORS?

To clean mirrors spray mirror cleaning solution all over the mirror. Using a paper towel wipe the

mirror length wise up and down until spots are removed and cleaning solution is dry.

How To Clean Glass Using Newspaper

This is just about the oldest method ofhow to clean glassand is still used today by many people

and the older generation swear by it. For this you will need some old newspaper, vinegar and

water. Mix the water and vinegar 4:1 (one part vinegar to four parts water) and wash the glass

preferably with a lint free cloth. Vinegar being an acid is very effective at cutting through thegrease and dirt. Scrunch up a few sheets of the newspaper and buff the glass to a shine.

Newspaper seems an unlikely cleaning tool particularly as old printing inks used to make such a

mess of your hands but you will be suprised at the result you get.

How To Clean Glass Using Only Water & Cloth

Technology of cloth making has certainly moved on in recent years and with the introduction of

lint free cloths and more significantly micro fibre cloths this an excellent environmentally

friendly technique ofhow to clean glass. You can just apply the water to the glass and then buff

dry, clean and most importantly smear free using the micro fibre cloth.

How To Clean Glass Using Steam

There arenowall manner of steam machines available in all shapes and sizes. The handheld

types are more popular around the home and come with various attachments but generally with

with a tool for windows. The technique forhow to clean glasswith a steamer is quite easy.

Simply spray the steam onto the glass and either allow to dry naturally or use the squeegeeattached provided.
http://www.xenonweb.co.uk/blog/?tag=how-to-clean-mirrorshttp://www.xenonweb.co.uk/blog/?tag=how-to-clean-mirrorshttp://www.xenonweb.co.uk/blog/?tag=how-to-clean-mirrorshttp://www.xenonweb.co.uk/blog/?tag=how-to-clean-mirrors

what is mirror

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