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One of the big advantages with a rail system is that it's hard to have accidents, because the vehicle won't drift into the other lane (unless there's...

Last option for me, especially in the case of Argentina :wall:

Extensive measures are taken for the protection of other celestial bodies against cross-contamination by Earth living microorganisms....

　 I'd read that, and always kept it in mind.

That was only part of my argument. The main argument is my personal experience of the 4th state and my knowledge that it is real. It is not an...

Used to be? Do you mean like these?

I don't see any reason why it shouldn't expand. I expect that nearly everyone on the planet shares that misconception. If the particles...

I think that what you describe is materialistic and part of nature following natural laws, not supernatural.

Yes, I believe it does; just as matter is creates gravity, the absence of matter creates anti-gravity, "Dark-Energy".

Exactly. You would leave and so would I and everybody else who doesn't like it for whatever reason is free to do so as well. Isn't that really all...

The vacuum blimp might have some utilty at the cloud tops of Saturn where the ambient air is mostly hydrogen. Neil

The last two links are the same.

My eight-year-old son thought it was cool when I pointed out (while discussing various elements and compounds, and the fact that compounds can have...

How did you get them up to half the speed of light?

It may be real, but I don't think the fact that descriptions transcend cultures and religions is a good argument in favor of it existing. Lots of...

Hi all: I agree it does not appear space based solar power can be done this decade except small scale with huge subsidies, But perhaps we should do...

Sorry, then, somehow I got the impression that you were arguing that blimps using a vacuum envelope would be practical, but I now that you aren't.

All I'm saying is that if certain organics are found on Mars which are not found anywhere else we looked (except Earth of course) then they most...

I think Earth's low-orbit satellites precess because of Earth's equatorial bulge, rather than perturbations from celestial objects. (edit: I see...

Not that I believe in the supernatural, but I don't think this is quite right. It would very much depend upon what the effect of a supernatural agent...

It appears we need at least one antenna on the sunlit side of free floating moduals, so control can order the module to rotate if none of the...

Romero has stated in interviews that his creations are not zombies, they are the LIVING DEAD. The voodoo zombies don't need to eat, they are also...

"I wonder if we'll find extremophile microbes under Europa. I hope we do." - I have no problem whatsoever with that. "I speculate that the new...

The important qualifier there is "in the limit of infinite systems", and i'd say that the qualifier is somewhat misleading. The decidability of the...

Or better, start a new thread with the issue in mind that you would like to focus on, then everyone can be involved.