Search found 6180 matches
- Thu Nov 27, 2008 1:33 am
- Forum: News
- Topic: Superconductivity Theory
- Replies: 13
- Views: 7979
What interests me is the recent indications of superconductivity near 200K. That should be quite easy to support. Not room temperature, but a lot closer than 77K. Superconductivity at liquid nitrogen temperatures would be a big improvement over liquid helium temperatures. You bet, and SC at dry-ice...
- Thu Nov 27, 2008 1:28 am
- Forum: General
- Topic: Tom Ligon at Philcon
- Replies: 8
- Views: 11313
- Wed Nov 26, 2008 3:26 am
- Forum: News
- Topic: Superconductivity Theory
- Replies: 13
- Views: 7979
- Wed Nov 26, 2008 3:22 am
- Forum: Design
- Topic: betas o' joy, or direct nuclear electricity
- Replies: 15
- Views: 10669
so a U-238 doped thorium metal emits electrons and these great number of electrons will go through a Diode Now you got ME totally confused. By what mechanism would U238 doped Thorium produce betas? Either you have a Thorium isotope that will beta decay by itself (in which case, why the U238) or you...
- Mon Nov 24, 2008 3:35 am
- Forum: General
- Topic: Economic stimulus plan?
- Replies: 28
- Views: 12448
Re: Economic stimulus plan?
Think of the "body economic". Ask yourself whether giving an addict another hit is a good idea. However you anwer, well, thats your answer!Jeff Peachman wrote:I'm just wondering what everyones thoughts are on Obama's proposed economic stimulus plan. (See the latest video address at change.gov)
- Sat Nov 22, 2008 2:57 pm
- Forum: Implications
- Topic: Screw the Space Elevator, Lets Launch Loop
- Replies: 22
- Views: 21484
I think the Aerovator is a much better option I take that back. It would never work for a myriad of reasons. Good on ya, mate! I was about to rip you... unh politely disagree. The most do-able low cost system today IMHO, (with current commercially available materials) would be a three stage system ...
- Sat Nov 22, 2008 4:14 am
- Forum: Design
- Topic: Aerogel applications?
- Replies: 10
- Views: 6224
Re: Diamond Coating
The high end for chemical bonds is around 15 eV. Even assuming a lattice effect of 10X that you are only up to 150 eV. The alphas will be coming in at about 2 MeV. Lots of sputtering. So what we have is an assessment that it SHOULD sputter, and many years of cyclotron modified diamond at 20 - 40 Me...
- Sat Nov 22, 2008 4:05 am
- Forum: Design
- Topic: A new nuclear power device
- Replies: 40
- Views: 20637
"Potentially practical" is an interesting phrase. :) The main problem is reprocessing. Which is exactly why I an so interested in ADS (or Fusor) driven Thorium fueled molten salt reactors. (TMSR) Their benefits include but are not limited to: 1. They need only minimal chemical reprocessing which re...
- Fri Nov 21, 2008 2:35 pm
- Forum: Design
- Topic: Aerogel applications?
- Replies: 10
- Views: 6224
Diamond Coating
I presume you mean this as the protection scheme for superconductive MAGrids under the alpha bombardment? If so, perhaps it is time to railroad, because I have been looking at diamond as a good coating myself. Especially now that CVD methods have been improved so much. There doesn't SEEM to be much ...
- Fri Nov 21, 2008 3:31 am
- Forum: General
- Topic: US Bashing
- Replies: 244
- Views: 69771
Hey folks, In Iraq, its a no-win situation. All over the planet, when the Brits left their empire, they seemed to set up countries designed to maximize subsequent turbulence and discord. It may not have been intentional, but is sure seems to have been a pattern. An Anglophile friend says it is only ...
- Thu Nov 20, 2008 11:18 pm
- Forum: Design
- Topic: massive megahertz multi megawatt magnetron
- Replies: 18
- Views: 11066
I think he was thinking of a coil gun. Just out of curiosity, how much would a 6 GW DC-DC converter capable of stepping down from 1.5 MV to maybe 1-10 kV actually weigh? How big would it be? Would it weigh more than a 6 GW BFR? A lot more? I suspect so, but I want to make sure... MSimon and I were ...
- Thu Nov 20, 2008 5:21 am
- Forum: Design
- Topic: massive megahertz multi megawatt magnetron
- Replies: 18
- Views: 11066
Hmm. I thought most of the new high tech high power systems could go either way. Rail Guns, IPS, EMALS, all could do with HVDC. Not multimeg VDC, but DC. No?MSimon wrote: A lot will depend on whether DC distribution is the way to go. In any case for shipboard use AC will be required for the motors.
- Wed Nov 19, 2008 8:45 pm
- Forum: General
- Topic: Ice Age - A few of you would be interested in this
- Replies: 85
- Views: 29266
This is General - open season on any topic. If you count from my days on FIDO net I'm probably way beyond 10 million words. Even if you only go back to usenet days I probably beat that. I have over ten million words posted to internet fora (I stopped counting a while back)... I'm pretty much an exp...
- Wed Nov 19, 2008 8:37 pm
- Forum: Design
- Topic: massive megahertz multi megawatt magnetron
- Replies: 18
- Views: 11066