The Encyclopedia Americana, Volume 7Grolier, 1985 - Encyclopedias and dictionaries |
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Page 154
... blue pigments . It is also known as Thénard's blue , cobalt ultramarine , azure blue , and king's blue . It is essentially cobalt aluminate and is nonpoisonous and resistant to acids and alkalis . The cobalt blue colors also include the ...
... blue pigments . It is also known as Thénard's blue , cobalt ultramarine , azure blue , and king's blue . It is essentially cobalt aluminate and is nonpoisonous and resistant to acids and alkalis . The cobalt blue colors also include the ...
Page 311
... blue , each having in its appearance no tinge of any other hue . From the aspect of light , any color may theoretically be matched with a mixture of no more than three colors . These are the additive color primaries : red , green , and blue ...
... blue , each having in its appearance no tinge of any other hue . From the aspect of light , any color may theoretically be matched with a mixture of no more than three colors . These are the additive color primaries : red , green , and blue ...
Page 312
... blue wavelengths of light from the sun by particles ( clumps of air molecules ) in the atmosphere that is responsible for the blue appearance of the sky . Also , the sunlight , as we see it in rela- tion to a blue sky , is yellow ...
... blue wavelengths of light from the sun by particles ( clumps of air molecules ) in the atmosphere that is responsible for the blue appearance of the sky . Also , the sunlight , as we see it in rela- tion to a blue sky , is yellow ...
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19th century Africa American Atlantic cod became Bogotá born Britain British church civil Clark Clay Cleisthenes Cleveland climate clocks cloture cloud clubs coal coal tar coeducation coelacanth coffee coinage coins coke College Colombia colonies color Colorado Columbia Columbus comets comic commercial common cold common law Commonwealth COMMONWEALTH OF NATIONS Communist countries courts developed died early East economic elected Empire England English established European example federal France French higher education important India Indian industry institutions Island John known land later latitudes London major ment meters miles montmorillonite Mountains Museum National North Ocean organization party period plants political Population president produced programs region River Roman social South Soviet Soviet Union species temperature tion trade treaty Union United University usually West western World World War II York
Bibliographic information
| Title | The Encyclopedia Americana, Volume 7 The Encyclopedia Americana, ISBN 0717201155, 9780717201150 |
| Publisher | Grolier, 1985 |
| ISBN | 0717201163, 9780717201167 |
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