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A quiet mosque in Palestine, 1926
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Road located on the roof of the house
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A robot that always wins in "rock, scissors, paper."
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Just a Pendulum and Light

The light and the pendulum are a mesmerizing effect.
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Vintage aircraft: The Hoppicopter (1948)

This is the creation of designer H. Pentecost, who worked on the development of a helicopter parachute.

He mounted a 20 hp two-stroke motorcycle engine as a drive and transmitted the power to the rotor through the coaxial circle circuit.

The Hoppicopter was built in two versions: in the form of a backpack and one fitted with a tricycle landing gear.

Unfortunately, because of low power and small diameter of propellers, the design proved to be very traumatic for pilots.
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The motion of the ball in the flow is explained by Bernoulli's principle — the difference of pressures acting on the surface of the ball from different sides.
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The most populous capitals in 2022 and 1922
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Flavored cup

The Right Cup has developed a fruit-flavored cup that tricks the brain by making you believe that plain water has aroma.

Fragrance perception is the result of a combination of smells and tastes. While the tongue recognizes 4 basic taste sensations, our sense of smell is responsible for 80% of what we taste.

The cup affects the olfactory receptors, giving water the taste of grapes, oranges, peaches, berries and even Coca-Cola. It depends on which cup you choose.
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The drops of water act as a collecting lens, the image for the observer is inverted.

A collecting lens is a lens which is thicker in the middle than at the edges.
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In Amsterdam, between 12,000 and 15,000 bicycles are pulled out every year.
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Mumbai
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Waffen-ᛋᛋ recruiting office in Amsterdam
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