Synthetic amethyst is produced by gamma-ray, x-ray or electron beam irradiation of clear quartz which has been first doped with ferric impurities.

Hoffmann-La Roche then licensed the invention to the Swiss manufacturer Brown, Boveri & Cie who produced displays for wristwatches during the 1970s and also to Japanese electronics industry, which soon produced the first digital quartz wrist watches with TN-LCDs and numerous other products.

New materials were the first to be developed — quartz crystals were the first commercially exploited piezoelectric material, but scientists searched for higher-performance materials.

This work, for the Anti-Submarine Division of the British Naval Staff, was undertaken in utmost secrecy, and used quartz piezoelectric crystals to produce the world's first practical underwater active sound detection apparatus.

The rotation of the orientation of linearly polarized light was first observed in 1811 in quartz by French physicist François Jean Dominique Arago.

Paul Langevin first investigated quartz resonators for use in sonar during World War I.

Cady built the first quartz crystal oscillator in 1921.

In 1928, Warren Marrison ( of Bell Telephone Laboratories ) developed the first quartz crystal clock.

The higher temperature polymorphs of silica cristobalite and tridymite are frequently the first to crystallize from amorphous anhydrous silica, and the local structures of microcrystalline opals also appear to be closer to that of cristobalite and tridymite than to quartz.

* 1928-Joseph Horton and Warren Morrison build the first quartz crystal oscillator clock

The Uncompahgre Ute Indians from Central Colorado are one of the first documented groups of people in the world credited with the application of mechanoluminescence involving the use of quartz crystals to generate light.

The first prototypes of an electronic quartz wristwatch ( not just portable quartz watches as the Seiko timekeeping devices at the Tokyo Olympics in 1964 ) were made by the CEH research laboratory in Neuchâtel, Switzerland.

Seiko's efforts to combine the quartz and mechanical movements bore fruit after 20 years of research, leading to the introduction of the Seiko Spring Drive, first in a limited domestic market production in 1999 and to the world in September 2005.

Almost any material when subjected to high pressure will compact itself into a denser form, for example, quartz, also called silica or silicon dioxide will first adopt a denser form known as coesite, then upon application of more temperature, form stishovite.

The design concept for utilizing quartz crystals as a filtering component was first established by Walter Cady in 1922, but it was largely Walter Mason's work in the late 1920s and early 1930s that devised methods for incorporating crystals into LC lattice filter networks which set the groundwork for much of the progress in telephone communications.

When the bust was first discovered, Borchardt assumed that the quartz iris of the left eye had fallen out when the sculptor Thutmose's workshop fell into ruin, but an intensive search failed to locate it in the debris of the building.

Researchers who have worked at NPL include Paul Baran and Donald Davies, who co-invented packet switching in the early 1960s ; D. W. Dye who did important work in developing the technology of quartz clocks ; Louis Essen, who invented a more accurate atomic clock than those first built in America.

Fused quartz has nearly ideal properties for fabricating first surface mirrors such as those used in telescopes.

In 1955, he developed, in collaboration with Jack Parry, the first practical atomic clock by integrating the caesium atomic standard with conventional quartz crystal oscillators to allow calibration of existing time-keeping.

in 1916 and 1917 Paul Langevin and Chilowski filed two US patents disclosing the first ultrasonic submarine detector using an electrostatic method ( singing condenser ) for one patent and thin quartz crystals for the other.

The UHRENFABRIK H. E. HOMBERGER co-founded and was a shareholder in the " Centre Électronique Horloger " ( CEH ) in Neuchâtel and was financially involved in the development of the Beta 21 quartz wristwatch movement, which was first presented to the public at the 1969 Industrial Fair in Basel.

In 1969, Seiko introduced the Astron, the world's first production quartz watch ; when it was introduced, it cost the same as a medium-sized car.

Only in its final scene, where Beatie Bryant ( Mary Doyle ) shakes off the disappointment of being jilted by her intellectual lover and proclaims her emancipation do we get much which makes worthwhile the series of boorish rustic happenings we have had to watch for most of the first two and one-half acts.

For the first few months of their marriage she had tried to be nice about Gunny, going out with him to watch this pearl without price stamp imperiously around in her stall.

You want to watch out that you don't get burned to an ash, first sunny day.

He encouraged his children to watch films ; young Akira viewed his first movies at the age of six.

A popular legend, originating from 12th century chronicles, tells how when he first fled to the Somerset Levels, Alfred was given shelter by a peasant woman who, unaware of his identity, left him to watch some cakes she had left cooking on the fire.

According to a 2010 interview on Blog Talk Radios, Lessons Learned, Rick Tocquigny, when asked if Mumy was a Jonathan Harris fan, before Mumy's first meeting with Harris on Lost in Space, he said at age 5, he was too young to watch his mentor's show The Third Man which was probably late at night, but was old enough to watch The Bill Dana Show ( which also starred Harris's real-life best friend Don Adams ).

Odrade permits Duncan to watch Murbella undergo the spice agony, making him the first man ever to do so.

On that evening, children watch the sky anxiously hoping to be the first to cry out, " The star has come!

Governor William Sayle prepared for the uprising with three edicts: the first was that a nightly watch be raised throughout the colony ; second, that slaves and the Irish be disarmed of militia weapons ; and third, that any gathering of two or more Irish or slaves be dispersed by whipping.

* 1957 – The Hamilton Watch Company introduces the first electric watch.

Despite his position as the most important Irish artist of the 20th century ( and the first to sell for over £ 1m ), he took no pupils and allowed no one to watch him work, so he remains a unique figure.

In November 2006, Lycos began to roll out applications centered around social media, including the first " watch and chat " video application with the launch of its Lycos Cinema platform.

The first one Jaxon Xavier ( played by Andy Berman ) who was also a top scientist in one of Lex's companies called Lex Labs, entrapped Lois and Clark in a virtual reality world to steal information for mind control before the two with the help of Jimmy Olsen tricked him into letting them out by stealing his wrist watch escape window leaving him stranded.

* 1960 – More than 20 million viewers watch the first televised royal wedding when Princess Margaret marries Anthony Armstrong-Jones at Westminster Abbey.

Depending on how broadly one defines both wearable and computer, the first wearable computer could be as early as the first abacus on a string, or, later, a 16th century pocket watch.

* January 3 – Hamilton Watch Company introduces the first electric watch.

An estimated 500 million people worldwide watch in awe as Neil Armstrong takes his historic first steps on the Moon at 02: 56 UTC, the largest television audience for a live broadcast at that time.

* June 25 – 400 million viewers watch Our World, the first live, international, satellite television production.

In the first year of Paley's watch, CBS's gross earnings more than tripled, going from $ 1, 400, 000 to $ 4, 700, 000.

However, it should be noted that Huygens used this form of spring initially only because the balance in his first watch rotated more than one and a half turns.

" Hooke's work on elasticity culminated, for practical purposes, in his development of the balance spring or hairspring, which for the first time enabled a portable timepiece – a watch – to keep time with reasonable accuracy.

New York Times critic Janet Maslin praised DiCaprio's performance, writing " the film's real show-stopping turn comes from Mr. DiCaprio, who makes Arnie's many tics so startling and vivid that at first he is difficult to watch.

So to make the audience watch the audience, which that first special ' Street Magic ,' is the best TV magic special ever done and really, really does break new ground.