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Oscillating a sphere in front of a Concave Mirror gives interesting reflection.
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@QuiteInterestingInformation
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@QuiteInterestingInformation
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How many streaming subnoscriptions do you have?
Three years ago the most popular answer to this question was one single subnoscription (the survey was conducted only among those who have these subnoscriptions in principle, so there is no 0 here), 35% of respondents had one subnoscription, another 33% had two
Now more often people have two (24%) or three (23%) such subnoscriptions. The one and four subnoscriptions each received an equal number of votes (18%)! There were no people with six or more subnoscriptions in 2019, but now there are 7%
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@QuiteInterestingInformation
Three years ago the most popular answer to this question was one single subnoscription (the survey was conducted only among those who have these subnoscriptions in principle, so there is no 0 here), 35% of respondents had one subnoscription, another 33% had two
Now more often people have two (24%) or three (23%) such subnoscriptions. The one and four subnoscriptions each received an equal number of votes (18%)! There were no people with six or more subnoscriptions in 2019, but now there are 7%
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@QuiteInterestingInformation
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Regent launches "Seaglider" high-speed ekranoplanes
The idea of creating a "flying ship" – an ekranoplan, belongs to the outstanding Soviet shipbuilding engineer Rostislav Alekseev, who embodied it in his legendary and still unsurpassed apparatus - the "Lun".
However,bear in mind, unlike the combat "Harrier", the "Seaglider" is an exclusively civilian car and, moreover, powered by electricity. Its main task is passenger transportation between coastal areas.
"Seaglider" can takeoff and land easily. At the acceleration stage, he uses hydrofoils. Take-off speeds can reach from 30 to 70 km/h.
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@QuiteInterestingInformation
The idea of creating a "flying ship" – an ekranoplan, belongs to the outstanding Soviet shipbuilding engineer Rostislav Alekseev, who embodied it in his legendary and still unsurpassed apparatus - the "Lun".
However,bear in mind, unlike the combat "Harrier", the "Seaglider" is an exclusively civilian car and, moreover, powered by electricity. Its main task is passenger transportation between coastal areas.
"Seaglider" can takeoff and land easily. At the acceleration stage, he uses hydrofoils. Take-off speeds can reach from 30 to 70 km/h.
~~~~~~
@QuiteInterestingInformation
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▫️ Which cities in the world have the most skyscrapers?
The world capital of skyscrapers - for a long time, not New York (it takes only fourth place with 92 buildings over two hundred meters) and not even Dubai (in second place with 107 skyscrapers), and the Chinese Shenzhen: there are now 120 buildings over 200 meters high! And in the top eight, by the way, there are two more Chinese cities + Hong Kong (in third place).
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@QuiteInterestingInformation
The world capital of skyscrapers - for a long time, not New York (it takes only fourth place with 92 buildings over two hundred meters) and not even Dubai (in second place with 107 skyscrapers), and the Chinese Shenzhen: there are now 120 buildings over 200 meters high! And in the top eight, by the way, there are two more Chinese cities + Hong Kong (in third place).
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@QuiteInterestingInformation
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Alligators survive in frozen swamps by sticking their noses through the ice to breathe.
Although alligators may appear to be dead, scientists say they are not. Alligators use this survival technique when the water begins to freeze. Their bodies are almost completely shut down, and all they have to do is breathe. Reptiles shut down their metabolism, and they don't need to eat their heart rate slows down, their digestive system slows down, and they just sit and wait for heat.
Although alligators may appear to be dead, scientists say they are not. Alligators use this survival technique when the water begins to freeze. Their bodies are almost completely shut down, and all they have to do is breathe. Reptiles shut down their metabolism, and they don't need to eat their heart rate slows down, their digestive system slows down, and they just sit and wait for heat.
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