ALL SCI-FI

Robert (Butch) Day · Posted: Tue Jul 05, 2016 3:06 am Post subject:

And to think that we had Howard Joel Wolowitz, M. Eng and friends for that!
_________________
Common Sense ISN'T Common

orzel-w · Galactic Ambassador Joined: 19 Sep 2014 Posts: 1865

Bud Brewster · Posted: Tue Jul 05, 2016 2:06 pm Post subject:

________________________________

Actually, Brian McManus didn't write the text that includes that incorrect phrase, it was written by the person (not identified) who wrote the text at Yahoo News which included the video. Note that in the first paragraph (quoted in Bulldogtrekker's initial post) it says, "Brian McManus explains it all in his latest Real Engineering video." And then the text goes on to talk about the video and it's content.

So, the inaccurate phrase was not from Brian, it was from the unidentified author at Yahoo News.

And I listened to the video again to see if Brian McManus made the mistake in his narration. Happily he does not. So, I still think Mr. McManus knows what he's talking about.
_________________
____________
Is there no man on Earth who has the wisdom and innocence of a child?
~ The Space Children (1958)

orzel-w · Galactic Ambassador Joined: 19 Sep 2014 Posts: 1865

Brian talks about two forces in connection with a spinning space station: centrifugal and centripetal. Centrifugal force is the outward force, perceived as gravity, experienced by the object or person following a curved path, such as on a spinning space station. Centripetal force is the inward force that causes the object or person to follow the curved path. In the case of a spinning space station, it would derive from the very structure of the station.
_________________
...or not...

WayneO
-----------

Gord Green · Posted: Sun Jul 10, 2016 1:04 am Post subject:

First of all, you don't need to achieve 1 G.

.25G or .50G would be enough along with some exercise to prevent most of the circulatory and muscular problems that arise from zero G.

One plan that has been made is to have crew sections connected by cables to a central module.

Hey, even the centrifuge in 2001 would be feasible.

Bud Brewster · Posted: Tue Jul 12, 2016 7:10 pm Post subject:

________________________________

Hey, that's a great point, Gord! The detrimental effects of zero G on the human body and the inconvenience of trying to eat normal food and poop with dignity are the main reasons for creating artificial gravity, and as you said, we don't need one standard G to achieve those goals. Very Happy

_________________
____________
Is there no man on Earth who has the wisdom and innocence of a child?
~ The Space Children (1958)

Robert (Butch) Day · Posted: Wed Jul 13, 2016 5:58 am Post subject:

IF there is a large enough station built, you could have levels that mimicked the gravity of planets to send colonists to:

Moon, Mars, etc.

Perfect for future spacemen instead of "astronaut", "cosmonaught" and whatever term the Chinese use.)

(I prefer the term "spaceman" for those who live and work in space; e. g. "seaman" vs "sailor".)
_________________
Common Sense ISN'T Common

Gord Green · Posted: Wed Jul 13, 2016 11:41 am Post subject:

From classic sci-fi....Heinliens" SPACER !

But I too vote for Spaceman !!

Bud Brewster · Posted: Wed Jul 13, 2016 12:37 pm Post subject:

Robert (Butch) Day · Posted: Wed Jul 13, 2016 12:46 pm Post subject:

Bud Brewster · Posted: Wed Jul 13, 2016 12:57 pm Post subject:

Gord Green · Posted: Wed Jul 13, 2016 1:35 pm Post subject:

Actually, the best concept I've seem is the Hermes as shown in The MARTIAN. Crew sleeping/living area was in a centrifuge heavily protected from cosmic rays etc.

Working areas and cockpit cabin were zero G, but crew spent off duty time in the centrifuge.

I also think the whole Hermes/Ares concept of a single re-usable re-cycling ion propelled permanent craft was right on the mark!

Being able to be re-supplyed and re-crewed as necessary in a multi mission mode with enough "gravity" available to keep the crew healthy is ideal.

Pye-Rate · Starship Navigator Joined: 14 Dec 2013 Posts: 598

Bud Brewster · Posted: Wed Jul 13, 2016 7:16 pm Post subject:

________________________________

Nope, sorry, not good enough. Butch stated that there were countless stories about MULTI-LEVELED space stations that offered differed amounts of G-forces for aliens from different planets, by using several rings of various sizes to create artificial gravity that were not the same in each ring.

Hells bells, I know that revolving space stations were proposed back in the fifties and used in many stories, movies, and series. But I'll bet you can't name three stories (much less "countless") stories that specifically describe the concept I suggested and illustrated above.

It would have to be a story about a sort of United Nation in space (like Babylon 5), but using the design I illustrated to create different gravity strengths because of the different radius's of each ring.

And I need to see either illustrations or book covers showing a design similar to the one I created with Paint.net above, or a passage from the book describing the multi-leveled design of the station.

That's the new idea. Not just a wheel shaped space station.
_________________
____________
Is there no man on Earth who has the wisdom and innocence of a child?
~ The Space Children (1958)

Gord Green · Posted: Thu Jul 14, 2016 1:13 am Post subject:

Well Bud, one that comes to mind that is sort of what you describe would be Larry Niven's RINGWORLD.

Not exactly the same, but different environments if not gravity.