1701A emdrive videos made public

[rfmwguy]

For the first time after 7-8 years, I have released all my design, build and test vlogs to the public via a sorted Playlist here:

https://youtube.com/playlist?list=PLXewH43ZGxxnpryaAXN-D1pRS27qNFQeq&si=biWtNlsbhd90paeI

I built a modest, crude but effective test lab and did detect about 18mN thrust with 1kW power on a horizontal beam deflector. False positives were certainly possible but I took my project as far as I could since vacuum chambers and magnetic shielding were far above my pay grade.

There are 39 videos in the play list, increasing chronologically. Binge watching might be a way to get through it all. 

Regardless, I hope it inspires someone to build something new and exciting despite naysayers...

[InterestedEngineer]

Which of those dots is your test result?

[rfmwguy]

Which of those dots is your test result?

Marked as 1701A

[InterestedEngineer]

where do you think the noise floor is on that graph?  (or maybe the error bars for each experiment)

[rfmwguy]

where do you think the noise floor is on that graph?  (or maybe the error bars for each experiment)

From my understanding, each experiment would have its own noise floor based upon methodology. One could assume a 10 to 25% nf of final reading. My 1701A had a 1 to 2 mN nf IIRC.

[rfmwguy]

After speed reading through all 12 closed emdrive threads, I am amazed how successful the topic was for a multi year discussion.

I agree with monomorphics belief that his test stand with DUT created a compass needle...to summarize it crudely. I think I observed the same magnetic force deflection.

I was uncertain how a nonferrous assembly (except for the magnetron) could create a strong enough magnetic field to deflect an 8 ft torsion beam assembly.

With new experiments in kinetic magnetism and copper based metamaterials posted here, we may have the answer. Regardless, it's the closest thing I can ascribe to the emdrive force I measured back in 2016.

So no magic, no COM violation...all is right with the world.

[InterestedEngineer]

With new experiments in kinetic magnetism and copper based metamaterials posted here, we may have the answer. Regardless, it's the closest thing I can ascribe to the emdrive force I measured back in 2016.

So no magic, no COE violation...all is right with the world.

I think the kinetic magnetism and copper based metamaterials threads got deleted, not just locked.

Would you please post a link again?

[Star One]

I see in the current issue of Spaceflight magazine there’s a review of a new book on the EM drive.

[rfmwguy]

I see in the current issue of Spaceflight magazine there’s a review of a new book on the EM drive.

Do you have any idea of content or author?

[InterestedEngineer]

After speed reading through all 12 closed emdrive threads, I am amazed how successful the topic was for a multi year discussion.

I agree with monomorphics belief that his test stand with DUT created a compass needle...to summarize it crudely. I think I observed the same magnetic force deflection.

I was uncertain how a nonferrous assembly (except for the magnetron) could create a strong enough magnetic field to deflect an 8 ft torsion beam assembly.

With new experiments in kinetic magnetism and copper based metamaterials posted here, we may have the answer. Regardless, it's the closest thing I can ascribe to the emdrive force I measured back in 2016.

So no magic, no COE violation...all is right with the world.

Found the link on kinetic magnetism

https://www.nature.com/articles/s41586-023-06633-0

[rfmwguy]

Thanks for the nature link. Don't know why a nsf editor deleted that thread. Things sure have changed since 2015 when this section was far more active...a forum owners dream you'd think

While I believe the emdrive was a compass effect, I couldn't identify the mechanism that would turn it into compass needle. Thought a simple discussion would proceed about magnetism...boy was I wrong...

[InterestedEngineer]

Thanks for the nature link. Don't know why a nsf editor deleted that thread. Things sure have changed since 2015 when this section was far more active...a forum owners dream you'd think

While I believe the emdrive was a compass effect, I couldn't identify the mechanism that would turn it into compass needle. Thought a simple discussion would proceed about magnetism...boy was I wrong...

So were you thinking that your device was interacting with the Earth's magnetic field, or nearby ferro materials, or something else?

In the case of the Earth's magnetic field, I would think 2-3 orientation changes would be enough to confirm or deny that hypothesis.  Or placing a physical compass nearby and watching for large changes in the local magnetic field. 

[rfmwguy]

Thanks for the nature link. Don't know why a nsf editor deleted that thread. Things sure have changed since 2015 when this section was far more active...a forum owners dream you'd think

While I believe the emdrive was a compass effect, I couldn't identify the mechanism that would turn it into compass needle. Thought a simple discussion would proceed about magnetism...boy was I wrong...

So were you thinking that your device was interacting with the Earth's magnetic field, or nearby ferro materials, or something else?

In the case of the Earth's magnetic field, I would think 2-3 orientation changes would be enough to confirm or deny that hypothesis.  Or placing a physical compass nearby and watching for large changes in the local magnetic field.

I had the Torsion Beam in the 90/270 degree position when I obtained the deflection equivalent to 18mN. Results in the 0/180 degree were indeterminate.

After some time I assumed the positive results involved the earth's magnetic field.
I was unable to detect a significant magnetic field however, which I documented in my vlogs. Think it was my meters problem.

Regardless, I have stayed with the compass effect without a way to explain the induced magnetic field in nonferromagnetic metal. Copper and stainless hardware...

[Star One]

I see in the current issue of Spaceflight magazine there’s a review of a new book on the EM drive.

Do you have any idea of content or author?

EMDrive Future by Roger Shawyer from CRC Press.

RRP £82.99.

[CoolScience]

I see in the current issue of Spaceflight magazine there’s a review of a new book on the EM drive.

Do you have any idea of content or author?

EMDrive Future by Roger Shawyer from CRC Press.

RRP £82.99.

So did the review make clear that the book is from someone who doesn't know what direction something moves when you push on it, or was it a typical media article that treats nonsense claims like it was actual science?

[Star One]

I see in the current issue of Spaceflight magazine there’s a review of a new book on the EM drive.

Do you have any idea of content or author?

EMDrive Future by Roger Shawyer from CRC Press.

RRP £82.99.

So did the review make clear that the book is from someone who doesn't know what direction something moves when you push on it, or was it a typical media article that treats nonsense claims like it was actual science?

Do you actually know anything about Spaceflight magazine, otherwise I’m not sure you’d be asking that question.

[CoolScience]

So did the review make clear that the book is from someone who doesn't know what direction something moves when you push on it, or was it a typical media article that treats nonsense claims like it was actual science?

Do you actually know anything about Spaceflight magazine, otherwise I’m not sure you’d be asking that question.

I find that individual journalist names is a better predictor of accuracy and bias than publication name. (Though I doubt I will have heard of the specific one in this case.) If you think the review is worth mentioning and discussing it would be really helpful if you actually provided any information about the content instead of deflecting when asked a question about the content.

[Star One]

So did the review make clear that the book is from someone who doesn't know what direction something moves when you push on it, or was it a typical media article that treats nonsense claims like it was actual science?

Do you actually know anything about Spaceflight magazine, otherwise I’m not sure you’d be asking that question.

I find that individual journalist names is a better predictor of accuracy and bias than publication name. (Though I doubt I will have heard of the specific one in this case.) If you think the review is worth mentioning and discussing it would be really helpful if you actually provided any information about the content instead of deflecting when asked a question about the content.

The review just covers what’s in the book, a brief sketch history of the subject, including the recent IVO satellite. That’s it, it offers no opinion on the drive itself.

[rfmwguy]

Glad there's talk about emdrive testing. Even German group learned how to build better test stands in 2001 when they could not confirm thrust claims. I learned a lot; how to design and interface an ADC with a laser displacement sensor and a laptop plus learning how to safely work with 1.5kV during construction. Honed my skills a bit with spreadsheets and charting as well. I have no regrets..

[CoolScience]

So did the review make clear that the book is from someone who doesn't know what direction something moves when you push on it, or was it a typical media article that treats nonsense claims like it was actual science?

Do you actually know anything about Spaceflight magazine, otherwise I’m not sure you’d be asking that question.

I find that individual journalist names is a better predictor of accuracy and bias than publication name. (Though I doubt I will have heard of the specific one in this case.) If you think the review is worth mentioning and discussing it would be really helpful if you actually provided any information about the content instead of deflecting when asked a question about the content.

The review just covers what’s in the book, a brief sketch history of the subject, including the recent IVO satellite. That’s it, it offers no opinion on the drive itself.

In other words, the answer to my original question is no, the reviewer did not bother doing the minimal research required to provide the rather important information that the emDrive was based on trivially wrong and nonsensical claims. This is unfortunately expected from the majority of articles, either incompetence or willful misinformation for the sake of clicks. In this case it serves to promote what is essentially a scam (or incompetence and delusion indistinguishable from a one) publish an expensive promotional book since the drive never could work.