The New Encyclopaedia Britannica, Volume 9 |
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Page 402
... important in semiconductors . In a semiconductor there are a certain num- ber of " free " electrons occupying energy levels in the conduction band and a certain number of positively charged " holes " left in the va- lence band by the ...
... important in semiconductors . In a semiconductor there are a certain num- ber of " free " electrons occupying energy levels in the conduction band and a certain number of positively charged " holes " left in the va- lence band by the ...
Page 499
... important crop pest . The members of the family Miridae , which is one of the largest heteropteran families ( about 8,000 species ) , are also known as leaf bugs . They are brightly coloured and feed primarily on plant sap , causing ...
... important crop pest . The members of the family Miridae , which is one of the largest heteropteran families ( about 8,000 species ) , are also known as leaf bugs . They are brightly coloured and feed primarily on plant sap , causing ...
Page 835
... Important as a medieval caravan trade centre , the town is now known chiefly for its ruins . The famous road to the Red Sea , via Wādi Hammamat , that made the town important starts just to the east at the desert edge . Pop . ( 1985 est ...
... Important as a medieval caravan trade centre , the town is now known chiefly for its ruins . The famous road to the Red Sea , via Wādi Hammamat , that made the town important starts just to the east at the desert edge . Pop . ( 1985 est ...
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19th century American ancient army became birds Brazil British called capital Catholic central centre chief Christian church coast colour death developed dynasty early east eastern elected emperor England English feet forces France French German Greek Holy Roman emperor important Indian industry islands Italian Italy John king known land language later London maize major ment miles minister modern Mountains Museum National northern organized Otto Owen Oxford Pacific Pacific Islands pain painting palace Pāli Panama Papua New Guinea Paraguay parallax Paraná Paraná River Paris Park party Pashtun Paul Peisistratus Peking Pelagius Pentecostal Perak Pinyin plant poet political Pope port produced province region River Roman Rome served southern Spanish species square km square miles style tion town treaty United University western William World World War II