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MANHATTAN, Nev. -- Royal Standard Minerals Inc. (TSX VENTURE:RSM)(OTCBB:RYSMF)
...Beneath and Adjacent to the near Surface Gold Oxide Deposits on th...
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VANCOUVER, British Columbia -- Global Hunter Corp. ("Global") (TSX VENTURE:BOB) is pleased to announce assay results from the five diamond drill holes...
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VANCOUVER, British Columbia -- Tim Coupland, President and CEO of Alberta Star Development Corp., listed on the TSX Venture Exchange (ASX) and on the ...
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Los centavos se veían sucios porque estaban cubiertos de un compuesto llamado bronce de óxido (copper oxide). Entonces, el ácido o la solución de sal y vinagre los lavó. Pero solos, los centavos lavados con agua parecen brillosos, porque el dejar la sal y el vinagre en bronce por mucho tiempo al aire libre hace que el oxígeno en el aire reaccione químicamente con el clorito de la sal. Por eso, los centavos se miran azulesverdes en vez de brillosos. ¡Interesante! Así mismo, los ingenieros en electricidad y computación usan elementos como el bronce para crear los circuitos dentro de tu calculadora o tu lámpara.
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Business Editors
VANCOUVER, British Columbia--(BUSINESS WIRE)--March 18, 2002
Atna Resources Ltd (TSE:ATN) announces it has signed agreements secu...
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Sometime in 1853, Brigham Young sat down to have his picture taken. Not much is known about the exact sitting, but picture- taking in those days, using the method invented by Frenchman Louis Daguerre some 14 years earlier, was rather a clunky process.
It involved coating a copper plate with silver oxide, exposing it at length to the image being captured, developing it in a mercury bath and then removing the remaining silver oxide with a warm solution of cooking salt.
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VANCOUVER, British Columbia -- Cardero Resource Corp. ("Cardero" or "the Company") (TSX VENTURE:CDU)(AMEX:CDY)(FWB:CR5) is extremely pleased to announ...
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VANCOUVER, British Columbia -- Tim Coupland, President and CEO of Alberta Star Development Corp. (TSX VENTURE:ASX)(OTCBB:ASXSF), listed on the TSX Ven...
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VANCOUVER, British Columbia -- Alberta Star Development Corp. (TSX VENTURE:ASX)(OTCBB:ASXSF) announces that the company has been informed by the Sahtu...
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VANCOUVER, British Columbia -- Tim Coupland, President and CEO of Alberta Star Development Corp. (TSX VENTURE:ASX)(OTCBB:ASXSF), listed on the TSX Ven...