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Most Popular Skywatching Misconceptions Explained

With the return of the brilliant planet Venus to our evening sky, I'm reminded of an amusing anecdote related by a good friend of mine, George Lovi, a well-known astronomy lecturer and author who passed away in 1993. One night, while running a public night at the Brooklyn College Observatory in New York, the telescope was pointed right at Venus, which was displaying a delicate crescent shape at the time. Yet, one student gazing through the telescope eyepiece stubbornly insisted that he was really looking at the moon.

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Paving Slab Generates Electricity with Footfalls

LONDON--It could be the last word in concrete solutions to carbon emissions: a paving slab that generates electricity with every footstep taken on it, providing clean power to both cities and remote areas not connected to a national grid. Best of all, it requires mainly used tires and concrete

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Gas Drillers Risk Backlash Unless Health Protections Improve

A federal energy panel issued a blunt warning to shale gas drillers and their regulators today, saying they need to step up efforts to protect public health and the environment or risk a backlash that stifles further development. 201CConcerted and sustained action is needed to avoid excessive environmental impacts of shale gas production and the consequent risk of public opposition to its continuation and expansion,201D said members of the Energy Department2019s Shale Gas Subcommittee in a draft report released today

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Proof Found for Unifying Quantum Principle

By Eugenie Samuel Reich of Nature magazine When John Cardy proposed a far-reaching principle to constrain all possible theories of quantum particles and fields, he expected it to be quickly rebutted. [More]

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