Return to Unfiction unforum
 a.r.g.b.b 
FAQ FAQ   Search Search 
 
Welcome!
New users, PLEASE read these forum guidelines. New posters, SEARCH before posting and read these rules before posting your killer new campaign. New players may also wish to peruse the ARG Player Tutorial.

All users must abide by the Terms of Service.
Website Restoration Project
This archiving project is a collaboration between Unfiction and Sean Stacey (SpaceBass), Brian Enigma (BrianEnigma), and Laura E. Hall (lehall) with
the Center for Immersive Arts.
Announcements
This is a static snapshot of the
Unfiction forums, as of
July 23, 2017.
This site is intended as an archive to chronicle the history of Alternate Reality Games.
  

The time now is Tue Nov 12, 2024 7:27 pm
All times are UTC - 4 (DST in action)		 View posts in this forum since last visit
View unanswered posts in this forum
Calendar
 Forum index » Diversions » Perplex City Puzzle Cards » PXC: Purple Puzzle Cards
#177 - Purple - Consider a Spherical World - Star set
Moderators: AnthraX101, bagsbee, BrianEnigma, cassandra, Giskard, lhall, Mikeyj, myf, poozle, RobMagus, xnbomb
View previous topicView next topic
Page 1 of 1 [5 Posts]  
Author Message
Nightingale
Veteran

Joined: 28 Nov 2004
Posts: 86

 		#177 - Purple - Consider a Spherical World - Star set
Designed by Kurt worth 45 points.

Text:

I've always been fascinated by equations and how deceptively powerful they are in solving problems like this one.

Imagine you tied a rope around the Earth's equator and then you cut it and added 1M to its length.

If you could somehow suspend the rope above the ground so that it floated like a ring around the planet, how big would the gap be between the rope and the ground?



Nightingale doesn't own a scanner so can't post a piccie. She's very sorry.

(edit: corrected card number. GuyP)
_________________
Discovering the internet through trial and mostly error.

PostPosted: Fri Nov 25, 2005 11:28 am
 View user's profile
 Back to top 
doublecross
Unfettered


Joined: 25 Jul 2005
Posts: 588
Location: London, UK

 		Ooh, I know this one - it is surprisingly great.

Spoiler (Rollover to View):
The answer is actually independent of the radius of the sphere around which the rope runs. This means that it is the same answer as the difference between a rope of zero length and one of 1m length, i.e. it is the radius of a circle with circumference 1m, i.e. it is 1m divided by 2pi, i.e it is approximately

15.92 cm

_________________
xx

PostPosted: Fri Nov 25, 2005 11:49 am
 View user's profile
 Back to top 
spugmeistress
Unfettered


Joined: 22 Feb 2005
Posts: 460
Location: manchester, uk

 		um, i think 171 is witch script, not this one. i think you meant 177.
cool solve though :)

rach =)

PostPosted: Fri Nov 25, 2005 7:48 pm
 View user's profile MSN Messenger
 Back to top 
Platinumflux
Boot


Joined: 03 Aug 2006
Posts: 43
Location: Ireland

 		Found a site that gives a good explanation
Have to admit, this one suprised me! Surprised
Spoiler (Rollover to View):
http://www.puzzles.com/puzzleplayground/EarthBelt/EarthBeltSol.htm

Quote:
Omnia mutanter, nihil interit - Ovide


PostPosted: Sat Aug 05, 2006 7:07 pm
 View user's profile MSN Messenger
 Back to top 
mcdon2401
Boot

Joined: 25 Aug 2006
Posts: 14
Location: Scotland

 		I worked it out the long way, finding the circumference of the earth, working out the differences etc. But I forgot I was using C=Pi*d, and typed an answer twice the size it should have been.

Probably time for me to get some sleep Smile

PostPosted: Tue Sep 12, 2006 7:27 pm
 View user's profile
 Back to top 
Display posts from previous:   Sort by:   
Page 1 of 1 [5 Posts]  
View previous topicView next topic
 Forum index » Diversions » Perplex City Puzzle Cards » PXC: Purple Puzzle Cards
Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum



Powered by phpBB © 2001, 2005 phpBB Group