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A comment on The EmDrive just won't die. Parent comment

Re:The EmDrive just won't die by kosievdmerwe on Sunday September 13, 2020 @12:59PM (#24462201)
Rather the closed system includes both the craft and the ejected mass.
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Re:The EmDrive just won't die by NZGumboot on Monday September 14, 2020 @01:29AM (#24467077)
If you include the ejected mass, then momentum is conserved in that system. The ejected mass goes one way, the rocket goes the other. The momentum of the rocket is equal and opposite to the momentum of the ejected fuel.

Not true for the EmDrive.

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