Posted: Oct 29, 2020 9:18 am
Thommo wrote:Jet engines move air. Air is part of the Earth. What you're proposing is changing the Earth's movement by pushing against itself, or a variation on the old saw about every Chinese person jumping at once.
Never mind the absence of showing your working (and, in fact, the answer that working supposedly arrives at) the premise itself is nonsense, there's no net change in the angular momentum from the operation of a jet engine at all, you'd need to expel air from the Earth's atmosphere altogether to have an effect.
Without actually doing the calculation myself it seems unlikely that a jet engine pumping air out of the Earth's system would put much of a dent in the 2.138×1029 J of rotational energy the Earth has anyway.
To shift the axis of the Earth, we need to launch more than one rocket. And the weight of all the Chinese is a drop in the ocean compared to the weight of the planet. So, all these theories about jumping and launching are nonsense. You need to study physics, astronomy in order to understand the logic of orbital displacement. And this also requires space flights, observation of the processes taking place on Earth from afar. Recently, I have been interested in the developments of space companies, it’s very interesting how the development of our space industry will come. The British space company is very interested, it seems a newcomer to the space exploration market, not as famous as the mastodons in this field, but the ideas are fresh. I'd like to see the results of research on the development of natural disasters. After all, nothing is taken out of the blue. There is a pattern and a combination of factors in everything.