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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
German scientists confirm NASA results of propellantless EM drive
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<blockquote data-quote="essentialsaltes" data-source="post: 75858132" data-attributes="member: 294566"><p><a href="https://www.popularmechanics.com/science/a35991457/emdrive-thruster-fails-tests/?utm_source=DamnInteresting&fbclid=IwAR07PrSFsDUukE--2YKBnxD6G_7b05nhh3-wksIslG1Gz5tpm71TTHl_-nM" target="_blank">Update</a></p><p></p><p>In major international tests, the <a href="https://www.popularmechanics.com/space/rockets/a33917439/emdrive-wont-die/" target="_blank">physics-defying EmDrive</a> has failed to produce the amount of thrust proponents were expecting. In fact, in <a href="https://www.grenzwissenschaft-aktuell.de/latest-emdrive-tests-at-dresden-university-shows-impossible-engine-does-not-develop-any-thrust20210321/" target="_blank">one test</a> at Germany’s Dresden University, it didn’t produce any thrust at all. Is this the end of the line for EmDrive?</p><p></p><p>Now, however, physicists at the Dresden University of Technology (TU Dresden) are saying those promising results showing thrust were all false positives that are explained by outside forces. The scientists recently presented their findings in three papers at<a href="https://spacepropulsion2020.com/" target="_blank"> Space Propulsion Conference 2020 +1</a>, with titles like “<a href="https://www.researchgate.net/publication/350108418_High-Accuracy_Thrust_Measurements_of_the_EMDrive_and_Elimination_of_False-Positive_Effects" target="_blank">High-Accuracy Thrust Measurements of the EmDrive and Elimination of False-Positive Effects</a>.” (Read the other two studies <a href="https://www.researchgate.net/publication/350108417_Thrust_Measurements_and_Evaluation_of_Asymmetric_Infrared_Laser_Resonators_for_Space_Propulsion" target="_blank">here</a> and <a href="https://www.researchgate.net/publication/350108329_The_SpaceDrive_Project_-_Mach-Effect_Thruster_Experiments_on_High-Precision_Balances_in_Vacuum" target="_blank">here</a>.)</p><p></p><p>Using a new measuring scale and different suspension points of the same engine, the TU Dresden scientists “were able to reproduce apparent thrust forces similar to those measured by the NASA team, but also to make them disappear by means of a point suspension,” researcher Martin Tajmar <a href="https://www.grenzwissenschaft-aktuell.de/latest-emdrive-tests-at-dresden-university-shows-impossible-engine-does-not-develop-any-thrust20210321/" target="_blank">told the German site GreWi</a>.</p></blockquote><p></p>
[QUOTE="essentialsaltes, post: 75858132, member: 294566"] [URL='https://www.popularmechanics.com/science/a35991457/emdrive-thruster-fails-tests/?utm_source=DamnInteresting&fbclid=IwAR07PrSFsDUukE--2YKBnxD6G_7b05nhh3-wksIslG1Gz5tpm71TTHl_-nM']Update[/URL] In major international tests, the [URL='https://www.popularmechanics.com/space/rockets/a33917439/emdrive-wont-die/']physics-defying EmDrive[/URL] has failed to produce the amount of thrust proponents were expecting. In fact, in [URL='https://www.grenzwissenschaft-aktuell.de/latest-emdrive-tests-at-dresden-university-shows-impossible-engine-does-not-develop-any-thrust20210321/']one test[/URL] at Germany’s Dresden University, it didn’t produce any thrust at all. Is this the end of the line for EmDrive? Now, however, physicists at the Dresden University of Technology (TU Dresden) are saying those promising results showing thrust were all false positives that are explained by outside forces. The scientists recently presented their findings in three papers at[URL='https://spacepropulsion2020.com/'] Space Propulsion Conference 2020 +1[/URL], with titles like “[URL='https://www.researchgate.net/publication/350108418_High-Accuracy_Thrust_Measurements_of_the_EMDrive_and_Elimination_of_False-Positive_Effects']High-Accuracy Thrust Measurements of the EmDrive and Elimination of False-Positive Effects[/URL].” (Read the other two studies [URL='https://www.researchgate.net/publication/350108417_Thrust_Measurements_and_Evaluation_of_Asymmetric_Infrared_Laser_Resonators_for_Space_Propulsion']here[/URL] and [URL='https://www.researchgate.net/publication/350108329_The_SpaceDrive_Project_-_Mach-Effect_Thruster_Experiments_on_High-Precision_Balances_in_Vacuum']here[/URL].) Using a new measuring scale and different suspension points of the same engine, the TU Dresden scientists “were able to reproduce apparent thrust forces similar to those measured by the NASA team, but also to make them disappear by means of a point suspension,” researcher Martin Tajmar [URL='https://www.grenzwissenschaft-aktuell.de/latest-emdrive-tests-at-dresden-university-shows-impossible-engine-does-not-develop-any-thrust20210321/']told the German site GreWi[/URL]. [/QUOTE]
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German scientists confirm NASA results of propellantless EM drive
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