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Physicists explain why 'jet engine' remains science fiction

Physicists explain why ‘jet engine’ remains science fiction

Fly through space without looking around fuel The concern would be a breakthrough to explore the universe and travel between planets. For example, when spaceships get fuel directly from space, and with those collected orbiting them hydrogen atoms a atmospheric fusion reactor can fuel. this is “Ramjit“lead or”Boussard MosqueInspired by the year 1960 Also the science fiction community. According to a study by a physicist from Vienna and a colleague from the USA, a reasonable idea would fail due to the small dimensions of the project.

Science fiction is at stake

Concept American physicists Robert Bussard Physicist and science fiction writer, Peter Schachneider Manal Technical University (TU) Viennaand his colleague Albert Jackson Roughly with modern methods. The result was recently published in the specialized journal “.astronautics lawAccording to this, such a thrust, which in fact enables the speeds necessary for interstellar flight, will continue to exist only in the realm of science fiction.

The idea itself is “worth investigating,” Schachneider said, stating: “In interstellar space there is a very dilute gas, especially hydrogen – approx. One atom per cubic centimeter. If you can get hydrogen with tremendous help magnetic fields In front of the spacecraft front as in one magnetic funnel One can collect it, then one can use it fusion reactor Run and accelerate the spacecraft. “This concept has received a lot of attention since the 1960s.

The drive is working – but it will be too big

With an algorithm developed at the Vienna University of Technology Electromagnetic fields in an electron microscope Schachneider and Jackson were able to demonstrate that the basic principle of magnetic particle capture worked. In theory, a type of spaceship engine could be built with speeds up to light’s speed would create.

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The problem with this: you will need a magnetic funnel with a diameter of approx 4000 km. However, what is more unrealistic is the requirement that the length of the funnel, which is already very wide, also be 150 million km It must be, after all, something like this The distance from the earth to the sun equivalent. The fact that humans can “ramgit” other solar systems seems similarly remote.