Search found 2784 matches

by Giorgio
Fri Mar 19, 2010 8:29 am
Forum: News
Topic: Polywell FOIA
Replies: 475
Views: 115028

This was not a good news to read early in the morning......
by Giorgio
Fri Mar 19, 2010 8:10 am
Forum: General
Topic: Cheep, mass producable rocket.
Replies: 12
Views: 2013

KitemanSA wrote:Space launch will become economical when we stop using disintegrating totem poles.
ROTFL this made my day! :D
by Giorgio
Fri Mar 19, 2010 8:05 am
Forum: General
Topic: Mach Effect Propulsion Research Update
Replies: 96
Views: 11278

That at least some component of inertia is due to the charges of particles. That's a big affirmation. There is yet no paper (known to me) that goes even slightly near to prove this. Was he mentioning any reference in the book or it was just an hypothesis? He did a proof. Not formal, but the math is...
by Giorgio
Fri Mar 19, 2010 6:51 am
Forum: General
Topic: Mass Produced Multi-Engine, Multi-Stage Rocket
Replies: 25
Views: 3748

Otrag modules are just too small. A 10 Tons to LEO with this system is estimated to need a 1000 T rocket at launch. A Spacex Falcon 9 is less than 350 T at launch for the same payload to LEO. Irrelevant. What matters is cash cost, not mass ratio efficiency. More useless weight to lift = more cost, ...
by Giorgio
Thu Mar 18, 2010 8:08 am
Forum: General
Topic: Mass Produced Multi-Engine, Multi-Stage Rocket
Replies: 25
Views: 3748

I didn't know this system also, but (in a smaller scale) it looks very similar to what SPACEX is doing. Get a proven rocket technology module, use it as a base of your rockets and add more modules to increase payload. Otrag modules are just too small. A 10 Tons to LEO with this system is estimated t...
by Giorgio
Thu Mar 18, 2010 7:50 am
Forum: General
Topic: Mach Effect Propulsion Research Update
Replies: 96
Views: 11278

MSimon wrote:That at least some component of inertia is due to the charges of particles.
That's a big affirmation. There is yet no paper (known to me) that goes even slightly near to prove this. Was he mentioning any reference in the book or it was just an hypothesis?
by Giorgio
Thu Mar 18, 2010 7:36 am
Forum: News
Topic: A Superconductor Without Fixed Tc
Replies: 4
Views: 1337

I am also more prone to see this as a measurement error or sample modification between the various experiments.

In his own words:
"RESEARCH NOTE: Copper-oxides have been found to be strongly hygroscopic. All tests should be performed immediately after annealing."

Interesting stuff nevertheless.
by Giorgio
Thu Mar 18, 2010 7:31 am
Forum: News
Topic: emc2's website
Replies: 232
Views: 100400

These are the news I like to read when I wake up in the morning! I just wonder if WB-D will be a thermal device or a direct conversion device. Notice in WB-D image the hot and cold water(?) lines coming in and out of the device. Will that be thermal management of the coils or extraction of produced ...
by Giorgio
Tue Mar 09, 2010 3:21 pm
Forum: General
Topic: The AMTEC eletric generator and Carnot.
Replies: 10
Views: 1337

MSimon wrote:I'm satisfied that we are now on the same page.
We have always been on the same page regarding that point.
by Giorgio
Tue Mar 09, 2010 3:00 pm
Forum: General
Topic: The AMTEC eletric generator and Carnot.
Replies: 10
Views: 1337

And my opinion is that the paper is flat out wrong in saying Carnot efficiency can be exceeded for the thermal process (getting hot ions to cross a mechanical barrier). We all agree on this point. The paper never says that, nor did I. Let me get an hold on a copy of it if I can and post a link. It ...
by Giorgio
Tue Mar 09, 2010 2:13 pm
Forum: General
Topic: The AMTEC eletric generator and Carnot.
Replies: 10
Views: 1337

What I have felt from the start of the discussion is that there has always been confusion on the meaning of "where" you can apply carnot, and what is the meaning of using carnot-efficiency as a reference for a process. It's obvious that an heat engine is subject to carnot, and I never stated the opp...
by Giorgio
Mon Mar 08, 2010 6:06 pm
Forum: General
Topic: String Theory
Replies: 9
Views: 3479

If he were absolutely correct about the fractal nature of things in science, would that provide credence to views of Alien insemination? Of course not, is just that whenever people start to mix such arguments toghether I cannot avoid to feel like we are in front of some mystical visionary... Plus, ...
by Giorgio
Mon Mar 08, 2010 5:01 pm
Forum: Design
Topic: Plasma engines
Replies: 4
Views: 3362

To be precise the "p" in pB11 stands for "protium", i.e. Hydrogen, so is a fusion, not a fission.
by Giorgio
Mon Mar 08, 2010 10:20 am
Forum: News
Topic: Thermopower waves
Replies: 4
Views: 1644

Very interesting.

Nextbigfuture has some additional links and supplemental material worth of reading:
http://www.nature.com/nmat/journal/vaop ... 714-s1.pdf

Let's see if in the next monthes some other team will be able to replicate the experiments and confirm the measurements.
by Giorgio
Mon Mar 08, 2010 7:29 am
Forum: General
Topic: orion project question
Replies: 29
Views: 4033

I saw it again yesterday on Discovery. In a small episode dedicated to human advancement in space colonization they showed the original video of the first Orion Project test. I found it also on youtube (from a BBC show): http://www.youtube.com/watch?v=E3Lxx2VAYi8 Probably most of you have already se...