EM Drive

[Giorgio]

Sounds like politics to me.

Also very true.

[Nik]

IIRC, the motion was hastily voted down but they never got over the opprobium of having it *proposed*...

[morganism]

Any other news after the Chinese test?

[AcesHigh]

Less than twelve parsecs.

Does that only apply in the special case of the Kessel run, or does this hold for intragalactic smuggling generally?

Interesting link and tech, thanks for sharing. Like M-E and the Pioneer anomaly, I suspect it may end as just another facet of the Grand Unified Theory of Experimental Error, but maybe Tom and I will get to see it hump its way across a table someday.

Personally, I want a drive powered by annihilation of the lightest neutralino, partly because there's probably a lot of them, but most just because I like the idea of weak vector bosons beating up WIMPs.

speaking of the Pioneer anomaly

http://www.cosmosmagazine.com/news/4202 ... aly-solved

[Carl White]

Apparently Professor Yang Juan of The North Western Polytechnical University (Xi'an, China) has published on the topic now:

http://www.emdrive.com/abstracts.doc

I haven't found translated versions of the full papers yet.

EDIT: "now" is a relative term: the papers were published in 2008 and 2010. But noted on the EMDrive site on June 2011.

[ladajo]

Thanks for the update Carl. Please post if you do find full versions.

[Tom Ligon]

(deleted)

[Tom Ligon]

Less than twelve parsecs.

Does that only apply in the special case of the Kessel run, or does this hold for intragalactic smuggling generally?

Interesting link and tech, thanks for sharing. Like M-E and the Pioneer anomaly, I suspect it may end as just another facet of the Grand Unified Theory of Experimental Error, but maybe Tom and I will get to see it hump its way across a table someday.

Personally, I want a drive powered by annihilation of the lightest neutralino, partly because there's probably a lot of them, but most just because I like the idea of weak vector bosons beating up WIMPs.

TallDave, I postulated a neutralino-fueled Bussard Ramjet in a story a couple of years back in Analog called "Payback." I had just seen a blip on a paper dealing with detecting dark matter by measuring its annihilation energy. I have no idea how you would scoop it up, but if you could there should be way more of it than hydrogen, and potentially several orders of magnitude more energy yield.

[Giorgio]

Thanks for the update Carl. Please post if you do find full versions.

Here is a link to the chineese version:
http://www.yhxb.org.cn/Upload/PaperUpLo ... 2dce81.pdf

It looks to me more or less just a replication of Shawyer math model, reaching the same conclusions as him.
Unfortunately my Chinese is actually limited to 10 words, so I could be dead wrong.

There is also a picture and the mobile phone of the guy who wrote the paper.
I will ring his mobile tomorrow. If he didn't change the number and he can speak some decent english I might even have an interesting chat

[DeltaV]

There is also a picture and the mobile phone of the guy who wrote the paper.
I will ring his mobile tomorrow. If he didn't change the number and he can speak some decent english I might even have an interesting chat :)

PLA will be listening. Use code phrases such as "the recipe", "microwave oven power" and "cook time".

[Giorgio]

There is also a picture and the mobile phone of the guy who wrote the paper.
I will ring his mobile tomorrow. If he didn't change the number and he can speak some decent english I might even have an interesting chat

PLA will be listening. Use code phrases such as "the recipe", "microwave oven power" and "cook time".

Unfortunately, "The number you have dialed is not in service".

[IntLibber]

There is also a picture and the mobile phone of the guy who wrote the paper.
I will ring his mobile tomorrow. If he didn't change the number and he can speak some decent english I might even have an interesting chat

PLA will be listening. Use code phrases such as "the recipe", "microwave oven power" and "cook time".

Unfortunately, "The number you have dialed is not in service".

ah, chinese phone numbers are hinky.

[Carl White]

A translation of the latter paper has surfaced, along with some test data:

http://www.mail-archive.com/vortex-l@es ... 67942.html

[Torulf2]

If this works its will be good for pull dangerous asteroids from earth and pull treasures asteroids to earth.
But I still not understand how this coincide with Newton's 3d law.

[GIThruster]

It violates conservation,. That's why the Brits stopped backing it and let the Chinese have it--for a distraction. I should note though, that it ought to produce thrust according to Sonny White's QVF model, which is why he and Paul March built one.