Four friends, thirteen years old, were sitting on a summer day on the banks of the Moscow River and were bored, waiting for a trip to the pioneer camp. It was the holidays, there was nothing to do. It's the 60s of the twentieth century. These boys were super smart, which is why they weren’t discussing computer games, weren’t on their phones, and weren’t popping pop, but were talking about science.
And so, word by word, they dreamed up a miracle device for themselves: a transformer that changes the laws of physics materialized literally out of thin air. We started playing with him - it turned out funny, but the guys were really very smart and quickly realized that in Moscow it was too dangerous to do such tricks: if you cancel the friction force, for example, and who knows what catastrophe could happen. This means we need to move away from civilization to a safe distance.
Of course, the friends were big fans of adventure literature (Soviet boys, apparently, had no other way), and they wanted to be in the Pacific Ocean on the most famous raft in history. By the way, remember what it’s called? We first had to go to Oslo to get the raft, steal it, and an elderly capitalist accidentally got away with it. This bourgeois will be an antagonist, evil incarnate, a very bad person who has only money on his mind. But this is a minor character, however, like the boys, the main character here is physics. Physics will demonstrate what will happen if the density of ocean water changes, the speed of sound decreases, acceleration decreases, and how the abolition of the law of conservation of energy will affect everything. A clear demonstration of all the main laws in connection with real life.
I must say that Soviet schoolchildren were people of colossal intelligence: they performed thought experiments, knew how to determine their coordinates in the ocean by the stars, the sun and bearing; with the naked eye they could distinguish a brigantine from a frigate; Morse code was used to send messages to a ship in distress. Not like this damned capitalist, who hasn’t even read Wells (why does a person need money if he doesn’t know The War of the Worlds?).
I'm being sarcastic and sarcastic here, but that's just me :) In fact, it's a good book - useful, well written, popularizing science. Quite complex, since there is really a lot of physics there - the child needs to be oriented in the basic concepts. But if you have already at least somehow studied mechanics and thermodynamics, it will be very interesting to feel the connection of the laws with real life: they turned back time, breaking the cause-and-effect relationship, and raindrops crawl out of the ground and fly to the sky, smoke is drawn into the chimney, and the scattered apples jump into the bag themselves. They reduced the density of the water - a sunken pirate ship surfaced. Great, of course, but now you can’t cook fish soup, and you can’t cook anything at all. And when the law of conservation of energy was abolished, then this began, this!
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