# A crazy idea about an electric thruster

Discussion in 'Off-Topic' started by ZhixianLin, Dec 7, 2015.

1. ### ZhixianLin Thread Starter New Member

Dec 7, 2015
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Hey Guys,

I designed a new kind of eletric thruster. According to my calculations, its thrust can be much higher than radiation pressure.

The principle is: We know that on the electromagnetic wave propagation path, the direction of electric field at a point changes periodically. If there is a charged object at the point also changes its charge property periodically with the same frequency, then the electric field force direction on the object will not change. Therefore, the object will do directional movement. Based on this, it is possible to design a spacecraft without propellant. And the calculation suggests that the thrust can be much higher than radiation pressure.

It seems impossible, but my calculation suggests that it is possible. Can someone explain it?

2. ### hp1729 Well-Known Member

Nov 23, 2015
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A propellant is still required, isn't it?

3. ### strantor AAC Fanatic!

Oct 3, 2010
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Explain your own calculation to you? Sure, i think i can do that! K is the constant, i is an imaginary number, and once you reduce it to the easter bunny, it should be pretty straight forward. Carry the 9th digit to the tens place, and subtract the inverse of the fractional integer, Voila!

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4. ### cmartinez AAC Fanatic!

Jan 17, 2007
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And why, may I ask, did you not include your calculations, logic and reasoning in your first post?

Dec 7, 2015
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6. ### GopherT AAC Fanatic!

Nov 23, 2012
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So, why do you want us to go to a virus-filled website to see your formula instead of using the tools on this site to post it here?

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7. ### nsaspook AAC Fanatic!

Aug 27, 2009
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Why doesn't my microwave oven fly? I have this crazy idea about a flying carpet.

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Dec 7, 2015
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10. ### BR-549 Well-Known Member

Sep 22, 2013
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Have you seen anything move when you shine a light on it?

11. ### Wendy Moderator

Mar 24, 2008
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Yes.

While I am dubious of this idea, there is the Crookes Radiometer. It will indeed move if exposed to a unidirectional light source.

Of course, this is a red herring, since it is a heat engine. But how about light sails?

Last edited: Dec 7, 2015
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12. ### nsaspook AAC Fanatic!

Aug 27, 2009
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“Prove me wrong” is a favorite crank debating technique. Build it and prove it's right.

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13. ### Lestraveled Well-Known Member

May 19, 2014
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During the development of the atomic bomb, engineers were sent to surrounding bars, around Los Alamos, to talk about how they were building electric rocket engines as a dis-information strategy.

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14. ### BR-549 Well-Known Member

Sep 22, 2013
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I think that when hf is absorbed, it imparts spin energy, not linear. The HiPwr lasers just burn the target, they don’t move it. At least I haven’t heard that yet.

15. ### cmartinez AAC Fanatic!

Jan 17, 2007
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Is that true? Can you document it? I find it a fascinating counter-intelligence strategy

16. ### cmartinez AAC Fanatic!

Jan 17, 2007
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Yeah, it's like saying here's my proposal, but YOU do the hard work and figure it out.

17. ### Lestraveled Well-Known Member

May 19, 2014
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It was on a Discovery Channel (I think) documentary on Los Alamos during the A-bomb developement.

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18. ### Wendy Moderator

Mar 24, 2008
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Light sails respond to lasers like any light.

19. ### ZhixianLin Thread Starter New Member

Dec 7, 2015
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Because it is not synchronized, I think. Synchronize the charge and the electromagnetic wave electric field is the key of my design.

20. ### ZhixianLin Thread Starter New Member

Dec 7, 2015
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Sorry, I am nobody. I have no resource to do any experiment. If some one think it is possible and have the resource to test it, then can try.