Login | Register







Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Horizons
PostPosted: Fri Aug 12, 2016 5:28 pm 
Writer
Writer
Avatar

Joined: Thu Nov 25, 2010 9:44 pm
Posts: 1482
Location: Wisconsin. (Now you know which).
Sex: Male
Are you a published author?: No
Age: 0- 0-2098
Thought this would be a fun one to work on:

Wikipedia informs me that on a level plain, a 5 foot 7 inch person (neighborhood of 1.75 meters) sees the horizon 3 miles away.
But what if you're on my Underland and the "earth" on which you stand has only half the radius, or less, than the "Earth?" A smaller ball should mean a farther horizon, methinks, but I'm not sure.

EDIT:
Believe it or not, some people on the internet already did this.
These articles will be of use to you if you want to plan how far away objects are to your characters' vision, or if you have planets with smaller or larger radii.
The effect of different radii
Table of distances for earth-sized planets

_________________
There are some buttons of which the function remains unknown to me.


Top
 Offline Profile  
 
 Post subject: Re: Horizons
PostPosted: Fri Aug 12, 2016 6:15 pm 
Moderator
Moderator

Joined: Tue Jun 21, 2011 6:27 pm
Posts: 1183
Location: Southeast Michigan
Sex: Male
Are you a published author?: No
Age: 24 Feb 1987
Interesting!

I was wondering just yesterday about the converse: what if you're in a world that, like Narnia, is a plane rather than a sphere?

The point of a palpably different horizon also comes up in Niven's Ringworld and at least the first sequel (I haven't read any further than that ...); the Ringworld is so large that it includes life-size replicas of every inhabited planet of "Known Space," but instead of curving down as on a sphere, the horizon curves up.

And there's also a less-well-known science fiction novel I've read (which I hesitate somewhat to recommend due to "language" and "content" issues, but here's a link to it on Goodreads) in which the main "other world" is significantly larger than Earth, but what really messes with the character's "horizon sense" is that it's a binary planet, with a "moon" that covers (if I remember correctly) up to about a quarter of the sky.

_________________
Originally inspired to write by reading C.S. Lewis, but can be as perfectionist as Tolkien or as obscure as Charles Williams.

Author of A Year in Verse, a self-published illustrated collection of poetry: available in paperback and on Kindle.

My blog includes the following "departments":
  • Background on the Shine Cycle, my planned fantasy series, spanning over two centuries of an imagined world's history, several universes (including various alternate histories and our own future), and the stories of dozens of characters (many from our world).
  • Strategic Primer, a strategy game I'm developing, played by email, assisted by programs I'm developing. The current campaign (moving slowly, less than one turn a month) always needs more players.
  • My poetry.
  • Miscellaneous essays.


Top
 Offline Profile  
 
 Post subject: Re: Horizons
PostPosted: Sat Aug 13, 2016 2:45 am 
Writer
Writer
Avatar

Joined: Sun Apr 28, 2013 5:09 pm
Posts: 230
Location: A bunker under Greenwater Castle, Arizona
Sex: Male
Are you a published author?: No
Age: 31 Aug 1993
Slight tangent: The best visual example I've ever seen of a ringworld horizon is, of course, in the Halo series. See here:
http://i.imgur.com/pDLPvFj.jpg

_________________
Lo ilum on yis áne o duch e'tar.
May faith make your path clear.

I have a website now. Websites are cool. http://joelaparisi.com/
(Don't forget to subscribe to mah blog!)
I have a website for my series. Which is also cool. http://shraid.net


Top
 Offline Profile  
 
 Post subject: Re: Horizons
PostPosted: Sat Aug 13, 2016 4:15 am 
Moderator
Moderator

Joined: Tue Jun 21, 2011 6:27 pm
Posts: 1183
Location: Southeast Michigan
Sex: Male
Are you a published author?: No
Age: 24 Feb 1987
Jakorosin Darksbane wrote:
Slight tangent: The best visual example I've ever seen of a ringworld horizon is, of course, in the Halo series. See here:
http://i.imgur.com/pDLPvFj.jpg

To me, that looks like a normal horizon with the ringworld arch added to the background, not a horizon that slopes up instead of down ...

_________________
Originally inspired to write by reading C.S. Lewis, but can be as perfectionist as Tolkien or as obscure as Charles Williams.

Author of A Year in Verse, a self-published illustrated collection of poetry: available in paperback and on Kindle.

My blog includes the following "departments":
  • Background on the Shine Cycle, my planned fantasy series, spanning over two centuries of an imagined world's history, several universes (including various alternate histories and our own future), and the stories of dozens of characters (many from our world).
  • Strategic Primer, a strategy game I'm developing, played by email, assisted by programs I'm developing. The current campaign (moving slowly, less than one turn a month) always needs more players.
  • My poetry.
  • Miscellaneous essays.


Top
 Offline Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 


Who is online

Users browsing this forum: No registered users and 3 guests


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 post attachments in this forum

Search for:
Jump to: