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Why landing the U-2 may be one of the hardest jobs in the sky
The Lockheed U-2 was built to slip above hostile airspace, not to make pilots look good in the traffic pattern. Its long, ...
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The greedy cup
I pour Gallium in the Pythagoras' Cup. I then show you if a syphon can work in a vacuum chamber.
A group of US astronomers may have uncovered the first evidence for a dark matter sub-halo lurking just beyond our stellar ...
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