Search found 2261 matches

by hanelyp
Wed Aug 18, 2021 8:38 pm
Forum: News
Topic: Mach Effect progress
Replies: 2697
Views: 1101308

Re: Mach Effect progress

Complicated thing about these is that you NEED vibration to get thrust. As I understand how the Woodward effect is supposed to work, not quite. You need cyclic acceleration. Putting the "transient mass" cells on a spinning wheel should provide that without (ideal engineering) vibration in the null ...
by hanelyp
Sat Aug 14, 2021 9:59 pm
Forum: News
Topic: Mach Effect progress
Replies: 2697
Views: 1101308

Re: Mach Effect progress

"Claim on Mach-Effect propellantless propulsion scheme identified as vibration artefact."
exactly what every skeptic had at the top of the list of suspects. And sadly the proponents never appeared to take that possibility seriously.
by hanelyp
Sat Aug 14, 2021 9:53 pm
Forum: General
Topic: We lost so many members :(
Replies: 28
Views: 1210

Re: We lost so many members :(

As best I can make out, the long time the board was down did far more to drive out active membership than the lack of news about polywells. From my particular tech background I had a good idea what the problem was, but had no way to reach anyone in a position to deal with it.
by hanelyp
Mon Jul 05, 2021 1:48 am
Forum: News
Topic: What constitutes a Demonstration Power Plant?
Replies: 18
Views: 1076

Re: What constitutes a Demonstration Power Plant?

If the reactor is intended as a heat source for an electric generator, building out the heat to electricity conversion shouldn't be necessary for a demonstration. That technology is already well understood. Show that the reactor is outputting so much power at a given temperature and a good power pla...
by hanelyp
Sat Oct 10, 2020 6:30 am
Forum: News
Topic: Z-Pinch Renaissance
Replies: 198
Views: 148054

Re: Z-Pinch Renaissance

It is true that superheating water and ejecting it will give us the lowest ISP (in respect to superheating H2 as example), but it has a number of inherently interesting advantages: ... Anhydrous ammonia is an interesting comparison. A bit harder to store than water, but respectable density can stil...
by hanelyp
Tue Sep 22, 2020 8:33 am
Forum: News
Topic: NASA reports on something called lattice confinement fusion
Replies: 7
Views: 5534

Re: NASA reports on something called lattice confinement fusion

Sounds like a return of Pons Fleischmann cold fusion.
by hanelyp
Thu Oct 31, 2019 2:28 pm
Forum: News
Topic: Richard Nebel's Tibbar Plasma Technologies
Replies: 3
Views: 7883

Re: Richard Nebel's Tibbar Plasma Technologies

To my eye it all reads like someone takes startrek too seriously.
by hanelyp
Tue Oct 22, 2019 2:08 am
Forum: News
Topic: Aluminum-air battery
Replies: 7
Views: 9890

Re: Aluminum-air battery

Maybe Al2+6H20 => 2Al(OH)3+3H2 in a fuel cell that can deliver electricity, with the H2 sent to a second energy conversion stage?
by hanelyp
Wed Sep 18, 2019 9:39 pm
Forum: News
Topic: EMC2 news
Replies: 434
Views: 367315

Re: EMC2 news

By my recollection, the potential well was vital to the favorable energy distribution, ion vs electron, for aneutronic fuels. I also recall speculation that a well could be created without electron injection by differential leakage through the cusps. Of course then you need some other means of heati...
by hanelyp
Fri Aug 09, 2019 1:10 am
Forum: News
Topic: EM Drive
Replies: 710
Views: 464792

Re: EM Drive

Skipjack wrote:I wont believe that this thing works until I see repeatable and reproducible thrust numbers higher than a photon rocket.
Even then, we need an arrangement where we can be confident it isn't photon recirculation in the feed line.
by hanelyp
Thu Jun 27, 2019 6:58 am
Forum: General
Topic: Extraterrestrial colony companies
Replies: 44
Views: 52495

Re: Extraterrestrial colony companies

Of course if you import too much gold, the price of gold crashes. As has been seen when Spain imported gold plundered from the Americas, and the California gold rush.
by hanelyp
Mon Jun 03, 2019 5:11 pm
Forum: General
Topic: Crime and Punishment: Oklahoma (& Texas) style!
Replies: 983
Views: 294735

Re: Crime and Punishment: Oklahoma (& Texas) style!

Barrycade, as usual, speaks nonsense.
by hanelyp
Fri May 31, 2019 10:38 pm
Forum: News
Topic: Direct O2 evolution in collisions of carbon dioxide with surfaces
Replies: 7
Views: 10911

Re: Direct O2 evolution in collisions of carbon dioxide with surfaces

How much does it erode the impacted surface? And I presume ambient pressure has to be very low, of the O2 is likely to quickly react with the released carbon.
by hanelyp
Sun Apr 21, 2019 5:23 am
Forum: General
Topic: Extraterrestrial colony companies
Replies: 44
Views: 52495

Re: Extraterrestrial colony companies

Blackbody radiation scales with the 4th power of temperature. So a 30% reduction in incoming solar energy gives less than a 9% drop in temperature. Not sure I follow your calculations. Thought it was heat loss by radiation was proportional to the 4th power of the temperature difference. Nope, black...
by hanelyp
Fri Apr 19, 2019 12:28 am
Forum: News
Topic: US navy patents exotic propulsion aircraft
Replies: 5
Views: 12320

Re: US navy patents exotic propulsion aircraft

The F-302 is supposed to be ultra top secret. :wink: