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Starry: Watch for Perseid Meteor Shower The meteor shower has already started, but the moon's in the way. Luckily, the shower peaks during a practically moonless sky with 50-100 meteors per hour.
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Household phenomenon observed by Leonardo da Vinci finally explained An everyday occurrence spotted when we turn on the tap to brush our teeth has baffled engineers for centuries—why does the water splay when it hits the sink before it heads down the plughole?
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