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Post by jandl100 on Jul 2, 2020 7:26:24 GMT
Fascinating. “Essentially, the goal of this technology is to try and use electricity and air to replace gasoline,” he said. “Global warming is a major threat to human civilization. Fossil fuel-free technology using microwave air plasma could be a solution.” 'The basic idea, he said in an interview, is that his device turns electricity directly into thrust — no fossil fuels required — by using microwaves to energize compressed air into a plasma state and shooting it out like a jet.' '... in Tang’s telling, his invention — let’s just call it a Tang Jet, which he worked on with Wuhan University collaborators Dan Ye and Jun Li — could have civilization-shifting potential' futurism.com/scientist-jet-engine-electricity-thrust?mc_cid=739338b469&mc_eid=092f9d027b
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Post by John on Jul 2, 2020 7:36:55 GMT
I like this quote from the article you linked “I think the jet engine is more efficient than the electric motor, you can drive a car at much faster speeds,” he mused. “That’s what I have in mind: to combine the plasma jet engine with a turbine to drive a car.” "But you wouldn’t want to drive behind it", he warned, "because you could be scorched by its fiery jet stream"
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Post by jandl100 on Jul 2, 2020 8:44:06 GMT
Haha! Sounds good for aircraft and spacecraft though. I wouldn't want to stand underneath a Falcon 9 when it took off.
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Post by MartinT on Jul 2, 2020 10:08:10 GMT
You would still need compressed air or something to act as the thrust agent. An electric rocket won't be able to push against vacuum.
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Post by jandl100 on Jul 2, 2020 10:40:16 GMT
You would still need compressed air or something to act as the thrust agent. An electric rocket won't be able to push against vacuum. You're still shooting air out the back - action/reaction and you go forward, Newton's 3rd Law. You aren't pushing 'against' anything.
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Post by MartinT on Jul 2, 2020 11:43:58 GMT
You would still need compressed air or something to act as the thrust agent. An electric rocket won't be able to push against vacuum. You're still shooting air out the back - action/reaction and you go forward, Newton's 3rd Law. You aren't pushing 'against' anything. No, you misunderstood. I meant you still need a 'fuel' even if it's air. You can't use the electric motor in a vacuum without a reactant. Meaning, you still have to lug it up there.
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Post by jandl100 on Jul 2, 2020 12:58:44 GMT
Ah, right, yes.
You need to take the stuff you chuck out the back. Yes.
But it's just air, not fossil fuels or poisonous stuff. As long as you keep out of its way!
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