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elinvar

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elinvar
elinvar (ˈɛlɪnvɑː(r)) [f. Fr. élinvar (C. E. Guillaume 1920, in Compt. Rend. Acad. Sci. CLXXI. 83), f. élasticité invariable invariable elasticity.] (See quot. 1923.)1922 Raw Material V. 434/2 Elinvar permits of its application in the very good watches and even to chronometers of the non-metallic pe... Oxford English Dictionary
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Elinvar
Other variations of the Elinvar alloy are Iron- and cobalt-based ferromagnetic Elinvar alloy Manganese- and chromium-based antiferromagnetic Elinvar alloy Palladium-based non-magnetic Elinvar alloy The largest use of Elinvar was in balance springs for mechanical watches and chronometers. wikipedia.org
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Nivarox
hairsprings for balance wheels, but also in other micro-machine industries and in certain medical equipment and surgical instruments, in the same category as Elinvar Along with the earlier alloy Elinvar, this alloy made obsolete the expensive compensation balance used in precision timepieces in the 19th century. wikipedia.org
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platinite
platinite (ˈplætɪnaɪt) [f. platin-um + -ite1 4 b.] 1. Chem. A salt derived from platinous oxide, in which platinum has its lower valency.1866 Watts Dict. Chem. IV. 671 Platinous Oxide..when recently precipitated..dissolves in potash and in soda, forming salts called platinites, which appear also to ... Oxford English Dictionary
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Invar
See also Constantan and Manganin, alloys with relatively constant electrical resistivity Elinvar, alloy with relatively constant elasticity over a range wikipedia.org
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Charles Édouard Guillaume
Nickel–steel alloy Guillaume is known for his discovery of nickel–steel alloys he named invar, elinvar and , also known as red platinum. Elinvar is also non-magnetic, which is a secondary useful property for antimagnetic watches. wikipedia.org
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Nickel(II) oxide
Charles Édouard Guillaume won the 1920 Nobel Prize in Physics for his work on nickel steel alloys which he called invar and elinvar. wikipedia.org
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Balance wheel
A solid Invar balance with a spring of Elinvar was largely unaffected by temperature, so it replaced the difficult-to-adjust bimetallic balance. This design later fell out of use in favor of single metal Invar balances with Elinvar springs. wikipedia.org
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شارل إدوار غيوم
حصل على جائزة نوبل في الفيزياء عام 1920 عن أعماله في مجال القياسات الفيزيائية الدقيقة واكتشاف سبيلكة النيكل-فولاذ التي تدعى إنفار invar و إلينفار elinvar wikipedia.org
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Balance spring
Around 1900, a fundamentally different solution was created by Charles Édouard Guillaume, inventor of elinvar. A watch fitted with an elinvar balance spring requires either no temperature compensation at all, or very little. wikipedia.org
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Antimagnetic watch
Afterwards, in 1920, when he received the Nobel Prize in Physics, he developed another alloy - Elinvar. Invar and Elinvar are able to resist magnetic fields, allowing the watch to continue to keep accurate time. wikipedia.org
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California's 35th congressional district
Highway 71, Eucalyptus Ave, Peyton Dr, Highway 142, Tupelo Ave, Hazelwood Dr, Pipeline Ave, Los Serranos Blvd, Country Club Dr, Soquel Canyon Parkway, Elinvar wikipedia.org
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California's 40th congressional district
Valley Freeway, Eucalyptus Ave, Peyton Dr, Highway 142, Tupelo Ave, Hazelwood Dr, Pipeline Ave, Los Serranos Blvd, Country Club Dr, Soquel Canyon Parkway, Elinvar wikipedia.org
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British Horological Institute
horology has been awarded to: 1928 Frank Watson Dyson - Astronomer Royal who introduced Greenwich pips. 1930 Charles Édouard Guillaume - developed Invar and Elinvar wikipedia.org
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A. Lange & Söhne
Elinvar balance spring's introduction was revolutionary because it was removing the effects of temperature over the elasticity of the spring. of hairsprings to temperature fluctuations and magnetic fields on the one hand, while improving their elasticity and hardness in comparison with the Elinvar wikipedia.org
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