Search found 371 matches

by WizWom
Thu Jul 21, 2011 3:37 pm
Forum: News
Topic: 10KW LENR demonstrator (new thread)
Replies: 6351
Views: 1128228

I'm of the opinion that Rossi is an empiricist, who doesn't really grasp quantum mechanics.
by WizWom
Thu Jul 21, 2011 3:09 pm
Forum: News
Topic: 10KW LENR demonstrator (new thread)
Replies: 6351
Views: 1128228

From what I've explored, the key seems to be saturation of the area with neutrinos from beta decay, allowing the temporary conversion of protons to neutrons, long enough to impact nuclei before decaying. It is debatable whether this is feasible; the lifetime of these neutrinos in the material would ...
by WizWom
Thu Jul 21, 2011 5:54 am
Forum: General
Topic: Total Binding energy for all isotopes.
Replies: 66
Views: 9834

Wiz, Thank you for your support, but please not that way. Play nice please? Dan, for some reason, seems to be generally reasonable about all issues... except this one. He seems most willing to cook the books to get the answer he seems fixated on. Oh well. Sorry. I could work this sort of mass defec...
by WizWom
Thu Jul 21, 2011 5:42 am
Forum: Design
Topic: Using atmosphere as propellant
Replies: 151
Views: 101698

You didn't read very far. It drops to less than 2 kg/kW for power levels over 3 MW, and approaches 1 kg/kW at 10 MW. 500 MW is way outside the studied range... Also, that's for a fission plant. A p-¹¹B Polywell with direct conversion has a number of advantages in terms of power-to-weight ratio. Act...
by WizWom
Wed Jul 20, 2011 12:30 am
Forum: General
Topic: The Trip to Mars Just Got a Little More Difficult...
Replies: 9
Views: 2254

What they really mean is "long term free fall" - because they can't imagine a powered flight to Mars.
by WizWom
Wed Jul 20, 2011 12:09 am
Forum: General
Topic: Total Binding energy for all isotopes.
Replies: 66
Views: 9834

Note that there are errors in this post. See my next post for a more reasoned and fact supported analysis. Let me try some algebra. Binding energy/ nucleon chart gives values from ~ 0- 8.9 MeV on the low side of Ni62 and ~ 8.9 MeV to ~ 6 MeV on the high side (these numbers are approximations). Moro...
by WizWom
Tue Jul 19, 2011 11:44 pm
Forum: General
Topic: Axing the James Webb Space Telescope....
Replies: 18
Views: 3333

ladajo wrote:I think this one is far enough along the been funded for deployment path, that to chop it now would make them look too stupid.
Since when has anyone in government looked smart?
by WizWom
Tue Jul 19, 2011 11:41 pm
Forum: General
Topic: Second Worst President in US History.
Replies: 530
Views: 113609

I always thought the worst President was Hitler. Or maybe Napolean. Oh, you mean U.S.... Herbert Hoover. He bungled the recession of '29 so badly he caused black Tuesday and then bungled his response to that to cause the great depression. Barack Obama is trying really hard to match Hoover, though. I...
by WizWom
Tue Jul 19, 2011 11:19 pm
Forum: General
Topic: Where does innovation come from?
Replies: 7
Views: 1371

Governments, to the extent that they try to foster innovation, invariably distort the market to the detriment of true advance. Witness the "fusion energy" programs and the misdirection of nuclear power, the ruination of drug advances in medicine, or the dismal record of every DARPA project ever. Inc...
by WizWom
Tue Jul 19, 2011 10:50 pm
Forum: General
Topic: Taxes and the GOP walkout of debt ceiling negotiations.
Replies: 225
Views: 23506

Let's see... * Social security taxes are treated by the government as any other tax, and put into the general coffers * The proceeds from taxes let the government make all payments to interest, social security and other retirements, and the military salaries. They would also cover medicaid. But the ...
by WizWom
Tue Jul 19, 2011 10:12 pm
Forum: Design
Topic: Using atmosphere as propellant
Replies: 151
Views: 101698

KitemanSA wrote:
WizWom wrote: So, 3000 kg/MW using fission, ...
Source?
Um... the PDF of the paper from NASA??
by WizWom
Tue Jul 19, 2011 9:00 pm
Forum: Design
Topic: Using atmosphere as propellant
Replies: 151
Views: 101698

(1,000,000 lb)(500 We/lbf) = 0.5 GWe to hover in VTOL mode. Coincidentally, this is the total output of a coal-fired power plant I used to live near. One coal plant for hover. Ten coal plants for orbit. Which is why this will only work with fusion, or something better. http://ntrs.nasa.gov/archive/...
by WizWom
Wed May 11, 2011 8:39 pm
Forum: News
Topic: Proposed gamma-ray laser
Replies: 4
Views: 2071

It seems to me, though, that is you can find nuclei with excited states below their neutron or proton separation energy that you can turn a rather random energy source into a laser of the appropriate wavelength. Of course the absorption of photons by nuclei is a lot less common than that of absorpti...
by WizWom
Fri May 06, 2011 12:09 am
Forum: News
Topic: Proposed gamma-ray laser
Replies: 4
Views: 2071

well, no, not Gamma-ray. 162 nm UV; Thorium 229 has a nuclear excited state at just 7 kev. There are a few other atoms with a first excited state this low, too.

The trick is exciting a nuclei with that LITTLE energy. In this case, you can use a more random photon source.
by WizWom
Wed Apr 27, 2011 10:19 pm
Forum: Theory
Topic: Fusion Cross Sections
Replies: 26
Views: 9136

The Pauli Exclusion principle allows Bosons to be in the same energy state; but, because of the high energies required to overcome the coulomb barrier and allow the strong force to bind the nucleons together, your thermal randomness keeps the bosons from being in the same energy state anyway. Deuter...