Ruby


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Idioms, Wikipedia.

ruby,

precious stone, the transparent red variety of corundumcorundum
, mineral, aluminum oxide, Al2O3. The clear varieties are used as gems and the opaque as abrasive materials. Corundum occurs in crystals of the hexagonal system and in masses. It is transparent to opaque and has a vitreous to adamantine luster.
..... Click the link for more information.
, found chiefly in Myanmar, Thailand, and Sri Lanka and classified among the most valuable of gems. The Myanmarese stones are blood red, the most valued tint being the "pigeon's blood." The Thai stones are darker and the Sri Lankan stones lighter than the Myanmarese specimens. Star rubies, i.e., those that show an internal star-shaped formation when cut in cabochon (with a rounded top), are rare. Synthetic rubies are manufactured by the fusion of pure aluminum oxide. Chromium oxide is added to provide the appropriate color.

Ruby

 

(Late Latin rubinus, from the Latin rubeus, “red”), a variety of the mineral corundum (Al2O3) distinguished by the replacement of Al3+ ions by Cr3+ ions (from hundredths of a percent to 2 percent). The quantum transitions between the energy levels of the Cr3+ ions split by the crystal field give rise to the ruby’s red color (in contrast to the lack of color of corundum). The laser emission of ruby in the red part of the visible spectrum is related to the transitions between various levels of the Cr3+ ions, while the action of ruby as a quantum mechanical amplifier of radio waves (maser) is related to transitions between spin states.

The ruby is a precious stone of order I. In the USSR, rubies occur in alluvial deposits in the Central and Southern Urals. Outside the Soviet Union, there are important industrial deposits in Burma, Thailand, and Sri Lanka.

Synthetic rubies, obtained by the same process as that used for corundum (but with the addition of Cr2O3), are used in the jewelry and watchmaking industries. They also find use in quantum electronics as the active element of the maser and of the most common solid-state laser, which gives record energies and powers as well as giant pulses.

REFERENCES

Mineraly: Spravochnik, vol. 2. Moscow, 1965.
Rubinisapfir. Moscow, 1974.

A. S. MARFUNIN

What does it mean when you dream about a ruby?

A gemstone that varies from light pink to deep red, the ruby represents passion, the life force, and prosperity. The deeper and more intense the color, the more precious and expensive the stone.

ruby

[′rü·bē]
(mineralogy)
The red variety of the mineral corundum; in its finest quality, the most valuable of gemstones.

ruby

July. [Am. Gem Symbolism: Kunz, 319–320]

ruby

represents intensity of feeling; July birthstone. [Gem Symbolism: Kunz, 28, 319]

ruby

1. a deep red transparent precious variety of corundum: occurs naturally in Myanmar and Sri Lanka but is also synthesized. It is used as a gemstone, in lasers, and for bearings and rollers in watchmaking. Formula: Al2O3
2. the deep-red colour of a ruby

Ruby

(language)


1. A relational language designed by Jones and M. Sheeran in 1986 for describing and designing circuits (a hardware description language). Ruby programs denote binary relations and programs are built-up inductively from primitive relations using a pre-defined set of relational operators. Ruby programs also have a geometric interpretation as networks of primitive relations connected by wires, which is important when layout is considered in circuit design.

Ruby has been continually developed since 1986, and has been used to design many different kinds of circuits, including systolic arrays, butterfly networks and arithmetic circuits.

ftp://ftp.cs.chalmers.se/pub/misc/ruby/.

E-mail: <graham@cs.chalmers.se>.

["Ruby - A Language of Relations and Higher-Order Functions", M. Sheeran, Proc 3rd Banff Workshop on Hardware Verification, Springer 1990].

Ruby

An interpreted, object-oriented programming language that is somewhat similar to Perl in syntax. Known for its easy manipulation of text strings, everything in Ruby is an object, including primitive elements. Ruby programs and libraries are distributed in Ruby's "gem" format using the RubyGems package manager. JRuby is a Ruby implementation written in Java, and eRuby is an embedded version.

Ruby on Rails
Ruby on Rails (RoR) is an open source application framework for Ruby that is widely used for writing Web applications.

Rubies and Pearls
Written by Yukihiro Matsumoto and introduced in 1995, Ruby was named after the July birthstone that followed the Pearl birthstone of June. The design goal for Ruby was to create a language that was more intuitive for the programmer than previous languages. For more information, visit www.ruby-lang.org.
References in periodicals archive ?
The purchase price represents a premium of approximately 37% over Ruby Tuesday's closing share price on March 13, 2017, the day before the company announced its intention to explore strategic alternatives, and a premium of approximately 21% over Ruby Tuesday's closing share price on October 13, 2017.
So when can consumers get their hands on Ruby chocolate?
In October 2015 Ruby was diagnosed with a liver infection and was taken to Prince Charles Hospital in Merthyr Tydfil.
Ruby is also the language of choice of the open-source social network software diaspora*.
Ruby Murray Rough Cuts area delicious spicy curry flavour and are so-called as Ruby Murray is cockney rhyming slang for a curry throughout the UK.
Ruby left Red Boots every week with her head held high having received lots of praise for all she had achieved.
Prakash Murthy, a Ruby Community Enthusiast and organizer of the conference, said, "I am happy to be part of the first edition of Bangalore's own Ruby Conference.
Sharif discovered Ruby and presented her to the music world in 2002.
The first time that Ruby went riding she said that she now felt the same as other children.
Zoo management needs to show it really does want to do what is best for the animals by allowing Ruby to retire and sending her to sanctuary.
RUBY WAX claims she is no longer allowed on TV because she is too old.
Almost every family in her mythical Ruby is controlled by a powerful father figure, and these men also possess hegemonic authority in the public sphere.