During his explosive meeting with Volodymyr Zelensky, the president of Ukraine, an impatient President Donald J. Trump complained, in frustration, that it will “be a very hard thing to do business like
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As fires rage in southern California, Americans wonder how Donald J. Trump’s second presidential term, which started on January 20, 2025, will affect the climate. The answer, according to most climate activists,
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Have you ever heard of the Khan Academy? If so, you are one of about 160 million people worldwide who have not only heard of it but are also a registered user
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The North Atlantic Treaty Organization (NATO) was created in 1949 by the U.S., Canada, and a few European countries to provide security against the former Soviet Union. The involved countries created the
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The Pythagorean Theorem, a2+b2=c2, is a cornerstone of geometry. Proven over 2,000 years ago, it allows one to calculate any side of a right-angle triangle if the other two sides are known.
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