The New Book of KnowledgeGrolier, 1986 - 21 sider An illustrated encyclopedia containing over 9,000 articles on history, literature, art and music, geography, myths and legends, mathematics, science, hobbies, holidays and festivals, games, sports, crafts, medicine, law, government, industry, politics, and other topics. |
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Side 30
... kilometers (465 miles) below the surface. Let us see how the depth of such a quake can now be measured accurately at a seismic observatory. Look at the diagram above. Suppose a quake does occur 750 kilometers beneath the earth's surface ...
... kilometers (465 miles) below the surface. Let us see how the depth of such a quake can now be measured accurately at a seismic observatory. Look at the diagram above. Suppose a quake does occur 750 kilometers beneath the earth's surface ...
Side 89
... kilometers (6 miles) wide and extends about 480 kilometers (300 miles) south of Aswan. About 30 percent of Lake Nasser lies in Sudan. Because the new dam caused the waters of the Nile to rise so high that the temples of Abu Simbel would ...
... kilometers (6 miles) wide and extends about 480 kilometers (300 miles) south of Aswan. About 30 percent of Lake Nasser lies in Sudan. Because the new dam caused the waters of the Nile to rise so high that the temples of Abu Simbel would ...
Side 142
... kilometers (30 miles) away. There the signals are received by an antenna, amplified, and relayed to another tower. A line of towers may stretch for thousands of kilometers. A newer kind of relay system uses satellites in space instead ...
... kilometers (30 miles) away. There the signals are received by an antenna, amplified, and relayed to another tower. A line of towers may stretch for thousands of kilometers. A newer kind of relay system uses satellites in space instead ...
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American ancient animals atoms became become began beginning building built called carry cause century changes charge chemical church cities common developed direction early earth East eggs electric electrons elements energy engine England English Europe European example experiment explosives fish flow follow force France give grow heat houses important Indian industry iron Islands Italy John keep kind king known land language later learned light lines live magnet materials means metal motor mountains move natural needed North ocean organisms period plants plate plays produce River rock Roman rule schools scientists sometimes surface tests things tion turn United usually waves wire writing wrote