Talk-Polywell.org

Not sure what you mean. Their experiments and reactor design are pulsed, rather than steady state. What kind of stability are you talking about?

ScottL wrote:Not surprised. Moving goal posts.

If you read their clarification with the view that 'EMDrive' means Shawyer's device, it makes perfect sense. They are simply saying that they are testing their own technology.

To round this out, wiki says only trace quantities of Carbon on the moon, so only liquid oxygen could come from there. (I guess unless some enterprising person can land a large carbonaceous chondrite there!). Seems like you need CH4+3O2 -> CO2+2H20, so 18 grams of methane for every 48 grams of oxyge...

Yes I saw that, but didn't hear mention of exporting fuel from Mars, just using it for return trips.

Anyway, in this context the premise is faulty - Musk's presentation shows $1.6M for each tanker trip to LEO with about 300T fuel, so the number is more like $2.4 per lb, rather than $10,000! (page 41)

Hmm... if the fuel cost from earth to LEO is ~$10000/lb, what is the cost from the Moon or Mars to LEO? Does that create a commercial opportunity to build a fuel station somewhere to service a very large demand for fuel in LEO? Is there enough carbon, oxygen and hydrogen on the Moon to make fuel the...

Sadly, a lightbulb design that doesn't work won't prove very much on the concept of the electric lightbulb, but is disappointing. Has EMdrive been tested in space? If you want to go all-in speculation/conspiracy, check out the Operational History of the X37B OTV in Wiki. The thing was designed to sp...

Can you quote me their claims of thrust? There are no press releases on their website with any claims that I can see. The force required to maintain orbit is not high (I think 30-230 micronewtons), but this has to be sustained over six months. If they are determined to cheat, they can certainly do t...

But to get to the full planned current of 2.8 MA, the inductance of other parts of the FF-1 circuit must be reduced, so more energy is available inside the vacuum chamber, and less is wasted in magnetic field energy outside the chamber. The research team has some concrete ideas of how to do this, b...

A fascinating part of the video was Miles saying that he had a electrode which consistently produced excess heat, changed it, and it took him nearly a year to get excess heat again. If I was a skeptic, under pressure to confirm the known laws of physics, I might not have spent the year. I believe th...

Apropos the title of this thread, this video is interesting. An interview with Melvin Miles on old research showing high correlation between excess heat and excess Helium 4, quantitatively consistent with d+d->He4 fusion with no gamma production.

https://www.youtube.com/watch?v=KM82RW7_II4

R.

Poster DaChuna on NSF recently discussed being offered a PhD studentship to work with Tajmar on "optimising em drive resonances" IIRC.

Tajmar seems to be in enough doubt to carry on working.

R.

Me too. Hope it soon moves on from being a charity case! R.

I've also followed NSF since last summer. There has been a change recently, in that the DIY posters have not come up with real data for a while. The Travellers 8mN force with just under 100W power is a very significant number, but I think folk are right to be skeptical as there is no real report on ...

Let's hear it for page-breaks! I mean, from the recent post:

"...moderated by a person who openly admits to trying to dox folks online."

What do you mean by "dox"?

R.

"dox"?