Science of Discworld

Moderators: Jason, Toothy, Tonyblack

Science of Discworld

Postby CapnJTKirk » Mon Aug 27, 2012 2:58 pm

I just began reading The Science of Discworld, and am loving it. There is a bit in there about how kangaroos should be unable to hop, and how it relates to rockets, and then talk of a space elevator using carbon nanotubes. I then ran across this just earlier today. Total zen moment...

http://www.kickstarter.com/projects/mic ... a-tethered

How utterly cool.
CapnJTKirk
New member
 
Posts: 1
Joined: Mon Aug 27, 2012 2:53 pm

Re: Science of Discworld

Postby Tonyblack » Mon Aug 27, 2012 3:08 pm

Have you read The Fountains of Paradise by Arthur C Clarke, Capt? It's all about the consept of the Space Elevator. Well worth a read.

And welcome! :D
"Goodness is about what you do. Not what you pray to."
User avatar
Tonyblack
Moderator
 
Posts: 29055
Joined: Fri Jul 25, 2008 4:29 pm
Location: Cardiff, Wales

Re: Science of Discworld

Postby AgProv » Thu Nov 15, 2012 8:25 pm

There is a cautionary tale out there which possibly explains why there hasn't yet been a serious attempt to make a space-lift work. I read a novel where the string breaks and 23 miles of cable fall back to earth. It has to be fairly strong cable to cope with the stresses and 23 miles of it weighs heavy. The trigger event in the book was the fact the satellite at the top of the lift, due to human error, isn't quite in geostationery orbit. At first imperceptibly so, but the slip becomes bigger and bigger until the large manned satellite at the top is oscilating wildly. And then it fallsback to earth, making a wider and wider circle as it falls,still attached to the cable.... I will try to work out chapter and verse!

But here is a technical site, with animations:-

http://gassend.net/spaceelevator/breaks/index.html
Used to be too clever by half, but by virtue of consistent drinking, now only too clever by about a quarter. Banned from all BBC messageboards for being too much of an "uncceptable editorial risk".
AgProv
Member
 
Posts: 73
Joined: Thu Aug 18, 2011 1:47 pm
Location: MANCHESTER

Re: Science of Discworld

Postby Tonyblack » Thu Nov 15, 2012 8:54 pm

If I remember correctly (and it's been a long time since I read it), in the A.C. Clarke book, the cable was made after scientists were able to construct a strand of carbon atoms - in effect, a thread of diamond.

Just because we don't have the technology to do this yet, doesn't mean that we shouldn't think about it and even plan how we'd go about it if the technology was available. After all, that sort of thinking is the basis for the very best Sci-Fi. :)
"Goodness is about what you do. Not what you pray to."
User avatar
Tonyblack
Moderator
 
Posts: 29055
Joined: Fri Jul 25, 2008 4:29 pm
Location: Cardiff, Wales

Re: Science of Discworld

Postby Who's Wee Dug » Thu Nov 15, 2012 9:36 pm

I believe the Japanese have started in that direction, but with the way their economy is going I don't know if they will keep it going.
He willnae tak' a drink! I think he's deid! , on the other hand though A Midgie in yir hand is worth twa up yir kilt.
User avatar
Who's Wee Dug
Member
 
Posts: 14944
Joined: Sun Jul 27, 2008 10:31 pm
Location: Stirlingshire, Scotland


Return to Discworld novels

Who is online

Users browsing this forum: Exabot [Bot] and 4 guests