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rfre
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The answer RFRE has 0 possible clue(s) in existing crosswords.
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The word RFRE is NOT valid in any word game. (Sorry, you cannot play RFRE in Scrabble, Words With Friends etc)
There are 4 letters in RFRE ( E1F4R1 )
To search all scrabble anagrams of RFRE, to go: RFRE?
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| Rfre might refer to |
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| A radio frequency (RF) resonant cavity thruster, also known as an EmDrive, is a hypothesized type of propellant-free thruster that was proposed in 2001 by Roger Shawyer. No plausible theory of operation for such drives has been proposed; the theories that were proposed were shown to be inconsistent with known laws of physics, including conservation of momentum and conservation of energy.Several prototypes of this concept have been constructed and tested, including by the Advanced Propulsion Physics Laboratory at NASA. Initially, a few tests of prototype drives were reported to produce a small apparent thrust, but subsequent testing has failed to reliably reproduce these results.Due to the lack of both a physically plausible theory of operation and of reliably reproducible evidence, many theoretical physicists and commentators consider the device unworkable, explaining the observed thrust as measurement errors. Various media platforms have referred to the engine as the Impossible Drive or the Impossible Space Drive.* |