Talk-Polywell.org

Anyone here know anything about Orion- or Casaba-Howitzer-style shaped charge design and how it scales (or doesn't) to the multi-megaton range? I'm trying to figure out if it's actually possible to get to Proxima Centauri in a human lifetime using the Orion concept. The yield-to-weight ratio of the ...

Livermore was supposedly working on this in the '50s. Apparently the original idea was to use a large cave full of water with clean H-bombs; one bomb would run the turbines for a week. Eventually the project converged toward a much smaller bomb with a non-nuclear trigger in a purpose-built chamber. ...

Based on the interviews I've watched and my own engineering experience, I suspect a 30,000 foot view of a Helion plant is going to look something like this: https://photos.google.com/photo/AF1QipPGgN63lY5SyUDKgDRsHl3Q61muJLSK5cYaJumt I can't see that image. I tried to open it in a new tab, and it a...

I can see both of those.

PolyGirl wrote: ↑

Mon Mar 13, 2023 2:34 am

Nice Image!

The image in your post is broken for me.

It isn't a new concept. My department was doing simulations of this technology over 15 years ago.

Good to see it's making progress...

And if you are interested you can give a look to the experiments going on in the next iteration of detonation engines, the "Oblique Detonation" engine. This has a theoretical ISP of 1800 and could give a practical ISP of 1500. That's an air-breathing concept. You aren't getting 15 km/s exhaust out ...

Merry Christmas, everybody!

And Lentz (2020) explicitly suggested confined plasma as a gravitational source in his energy-condition-respecting superluminal soliton. It is an interesting theoretical paper but energy requirements for now are in the same range as Alcubierre drive, so it is out of our technological testing possib...

I was thinking warp drive. I've often thought that if anything like the Woodward theory is possible, a very little confined plasma could in principle be excited to produce significant gravitational effects. And Lentz (2020) explicitly suggested confined plasma as a gravitational source in his energy...

Physical Review Letters: https://journals.aps.org/prl/abstract/1 ... 125.177204

Better?

Yes, it's paywalled, but you can at least read the abstract for free...

F/m = GM/r²

M = 100000000000 kg
G = 0.0000000000667408 m³/kg·s²
r = 0.001 m

F/m = 6674080 N/kg

r = 1 m
F/m = 6.67408 N/kg
m = 70 kg
F = 467.1856 N = 105 lbf

These things could be really dangerous...

Technically the original 6502 was NMOS (as was the unlicensed clone in the Famicom/NES, if I'm not mistaken). The CMOS version was the 65C02, and it fixed a few bugs as well as tossing out the undocumented opcodes in favour of additional "real" opcodes. My experience, such as it is, is with the 5A22...

https://en.wikipedia.org/wiki/Kardashev_scale

Is there a type of stellar maser that produces a single peak at ~11 GHz?

That is the big advantage of a NERVA style motor: it really doesn't care what type of "fuel" you push through it, as long as it doesn't interfere with the heating process. Since no one else has mentioned it, I'll just note that this is entirely untrue, for two separate reasons, neither of which has...