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This is italian ambulance

Glue experiment

When the glue is in an enclosed space without oxygen, that is, in a tube, no chemical process occurs. Superglue only glues when it interacts with oxygen.
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If we place the lens on the window sill and get an image of distant objects outside the window on the screen, the distance between the lens and the screen will be equal to the focal length.
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What's intriguing is the property of the vibration causing this thing to rotate in the opposite direction.
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The Prandtl-Glauert effect

It occurs as a high-speed flying object creates a region of high air pressure in front of itself, and a region of low pressure is formed behind it.
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— 🇮🇱/🇵🇸 Two Israeli war veterans share their war memories, which includes raping 16 year olds and killing people with a flamethrower

@Middle_East_Spectator

In a hotel in Dubai
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Children in the late 1800s playing marbles, by French painter T. L Deyrolle.
Marbles is one of the oldest games in the world. Marbles have been found in Native American burial grounds, Egyptian tombs, and Aztec ruins. The marbles we know and love today got their start in the mid 1800s when a standardized mold for glass marbles was invented
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Lightning colliding with volcanic eruption
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Mercury, a daytime streamliner passenger train operating between midwestern cities. Chicago, 1936
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