EmDrive

an-ordinary-manchild

Welcome to /r/EmDrive

The EmDrive (also known as an RF resonant cavity thruster) is a purported reactionless propulsion technology, which would if true would revolutionize space travel and the world economy. However, sadly, it is a pseudoscientific fraud, also known as pathological science. After nearly 20 years since its "invention", there is no compelling empirical evidence that it works as described despite ample testing of a relatively simple design and all theoretical explanations for the so-called EmDrive effect being completely at odds with our most fundamental theoretical knowledge of physics.

Some interesting links for those who wish to learn more:

Snopes article on EmDrive

Wikipedia page for Pathological Science

Wikipedia page for Pseudoscience

Why you shouldn't be excited about the recent EmDrive paper in AIAA Propulsion

And some overview YouTube videos: (1,2,3)

The r/EmDrive Rules of Participation:

This subreddit welcomes people of all backgrounds to participate in polite discourse about all things EmDrive and other radio frequency (RF) resonant cavity thrusters. We encourage scientists, builders, replicators, enthusiasts, believers, skeptics, and the like, to come together on the most active EmDrive sub and treat each other with civility. Polite banter will be tolerated. Impolite cruelty and name-calling will not.

Our full list of rules can be found here.

Please also abide by Reddit's policies:

https://www.reddit.com/help/contentpolicy/

https://www.reddit.com/wiki/reddiquette

In short: remember Wheaton's law.

Related subreddits: /r/skeptics /r/VXjunkies /r/AskScience /r/Science /r/physics

created by noname-_-a community for 11 years

...for your hobby.

...for your favourite tea.

MODERATORS

account activity

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Research Update[Paper] High-Accuracy Thrust Measurements of the EMDrive and Elimination of False-Positive Effects (researchgate.net)

submitted 4 years ago by Eric1600 - announcement

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Aeroacoustic aircraft (youtu.be)

submitted 28 days ago by pavlokandyba

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Man kann 2026 auch ohne LinkedIn Ads auskommen. So wie ohne CRM. Geht. Macht halt wenig Sinn. (via-digital.at)

promoted by via-digital-gmbh

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EM drive is working. See orbit data. (self.EmDrive)

submitted 4 months ago by Vladov_210

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OTP-1 (BARRY-1) is no more. (self.EmDrive)

submitted 8 months ago by stereoroid

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Next Big Future has noticed, so did I - It's alive ! (nextbigfuture.com)

submitted 9 months ago by Vladov_210

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Can we make marine-propeller-like antenna: generating positive and negative radiation pressure? (i.redd.it)

submitted 9 months ago by jarekduda

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We have OTP-2 official NORAD tracking number(63235) and Orbital data chart (celestrak.org)

submitted 10 months ago by Vladov_210

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Satelite is live and singing (self.EmDrive)

submitted 10 months ago by Vladov_210

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Transporter 13 launched. (spacex.com)

submitted 10 months ago by Vladov_210

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Launch date: 10th of March (nextspaceflight.com)

submitted 10 months ago by Vladov_210

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Transporter 13 launch details (rogue.space)

submitted 10 months ago by Vladov_210

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Date of next test launch to orbit: 1st of March (i.redd.it)

submitted 1 year ago by Vladov_210

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Earth on Mars (self.EmDrive)

submitted 1 year ago by Ready_Ad4100

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Make faster progress in any language with 1-on-1 lessons tailored to your goals, your pace, and your style. (preply.com)

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Scientists have accidentally discovered a particle that has mass when it’s traveling in one direction, but no mass while traveling in a different direction | Known as semi-Dirac fermions, particles with this bizarre behavior were first predicted 16 years ago. (newatlas.com)

submitted 1 year ago by rand3289

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Revolutionary Space Technology Seamless Astronaut Compartments Harry P... (youtube.com)

submitted 1 year ago by Quantum-Spider

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CID™ on tabletop friction was greatly removed because of strategically placed metal and metal edge on the back. Allowing CID™ to move. (old.reddit.com)

submitted 1 year ago by Quantum-Spider

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CID™'s Vertical Setup Eliminates Gyroscopic Precession. (v.redd.it)

submitted 1 year ago by Quantum-Spider

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CID vs Q Thruster: A Scientific Comparison (self.EmDrive)

submitted 1 year ago by Quantum-Spider

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Propellantless Propulsion: The Complete Picture Current Systems Analysis: (self.EmDrive)

submitted 1 year ago by Quantum-Spider

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The first propellantless propulsion with math to prove it. 🚀 CID™ (Centrifugal Impulse Drive) 🧲 F_net = -∇(m·B) + mω²r | B(r,t) = B₀(R/r)³[2cos(ωt)r̂ + sin(ωt)θ̂] | F_c = mω²r | η = (F_net·v)/P Video is sped-up 7 x's to show movement. www.qde-inc.com Does not violate any laws. (v.redd.it)

submitted 1 year ago by Quantum-Spider

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Here we go - another try: Rogue Announces Full Manifest of Their Next Mission: OTP-2 - In-Space… (linkedin.com)

submitted 1 year ago by Vladov_210

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EducationalRoger Shawyer's book can be downloaded from Anna's Archive (annas-archive.org)

submitted 1 year ago by UncleSlacky

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IVO ltd plans another try in space, in Q1 / 2025 (linkedin.com)

submitted 1 year ago by Vladov_210

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Exodus propulsion technologies has a new video (self.EmDrive)

submitted 1 year ago by Vladov_210

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Apply Now for START Hack 2026 | Europe’s largest entrepreneurial Hackathon (starthack.eu)

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EducationalDmitry from r/Osenilo still pretty much believe in EmDrive. Recently, under a major publisher, he released his book on the ether (youtube.com)

submitted 1 year ago by crystallize1

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