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289
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Although the first pulsar, or rapidly spinning collapsed star, to be sighted was in the summer of 1967 by graduate student Jocelyn Bell, it had not been announced until February, 1968.
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290
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Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.
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291
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Last year land values in most parts of the pinelands rose almost so fast, and in some parts even faster than what they did outside the pinelands.
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292
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The North American moose`s long legs enable it to move quickly through the woods, stepping easily over downed trees, but predators pursuing it must leap or go around them.
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293
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Early administrative decisions in China`s Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure.
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294
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Seismologists studying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries:the unexpected power of the seismic waves,the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.
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295
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The type of behavior exhibited when an animal recognizes itself in a mirror comes within the domain of "theory of mind," thus is best studied as part of the field of animal cognition.
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296
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Unlike the United States, where farmers can usually depend on rain or snow all year long, the rains in most parts of Sri Lanka are concentrated in the monsoon months, june to September, and the skies are generally clear for the rest of the year.
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297
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In preparation for the prediction of a major earthquake that will hit the state, a satellite-based computer network is being built by the California Office of Emergency Services for identifying earthquake damage and to pinpoint the most affected areas within two hours of the event.
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298
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Once numbering in the millions worldwide, it is estimated that the wolf has declined to 200,000 in 57 countries, some 11,000 of them to be found in the lower 48 United States and Alaska.
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299
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As business grows more complex,students majoring in specialized areas like those of finance and marketing have been becoming increasingly successful in the job market.
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300
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Created in 1945 to reduce poverty and stabilize foreign currency markets, the World Bank and the International Monetary Fund have, according to some critics, continually struggled to meet the expectations of their major shareholders-a group comprising many of the world`s rich nations-but neglected their intended beneficiaries in the developing world.
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301
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Unlike auto insurance, the frequency of claims does not affect the premiums for personal property coverage, but if the insurance company is able to prove excessive loss due to owner negligence, it may decline to renew the policy.
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