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How prairie dogs use the Bernoulli’s principle.
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How prairie dogs use the Bernoulli’s principle.
In order to ensure sufficient oxygen within their burrow, one of the entrances is built with a raised mound of dirt, while the other is not. This determines different wind velocities and different pressures + natural ventilation
有趣
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twitter.com)
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Massimo
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"This was filmed last Wednesday afternoon at Riverside Veterinary Clinic in Indianapolis, Indiana. The officer is Sergeant Paul Greer. He's 41 years old. Fourteen-year veteran of the Indianapolis Metropolitan Police Department. The dog is Bruno. A ten-year-old German Shepherd who
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"This was filmed last Wednesday afternoon at Riverside Veterinary Clinic in Indianapolis, Indiana. The officer is Sergeant Paul Greer. He's 41 years old. Fourteen-year veteran of the Indianapolis Metropolitan Police Department. The dog is Bruno. A ten-year-old German Shepherd who
时政
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twitter.com)
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New iPhones are being packed into the suits of the Artemis II Crew!
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New iPhones are being packed into the suits of the Artemis II Crew!
There is something very familiar about the iPhone look that will make the Moon feel accessible, we are literally going to see the lunar surface through the same lens we use to capture our own lives every day.
时政
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twitter.com)
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