If anyone was looking for the exact quote its from The Two Towers, Chapter 2 “The Riders of Rohan”.
“’Riders!’ cried Aragorn, springing to his feet. ‘Many riders on swift steeds are coming towards us!’
“’Yes,’ said Legolas, ‘there are one hundred and five. Yellow is their hair, and bright are their spears. Their leader is very tall.’
“Aragorn smiled. ‘Keen are the eyes of the Elves,’ he said.
“’Nay! The riders are little more than five leagues distant,’ said Legolas.
“’Five leagues or one,’ said Gimli; ‘we cannot escape them in this bare land. Shall we wait for them here or go on our way?’
rljkeimig@lemm.ee 3 days ago
The reason Legolas can see that far is because the curvature of Earth doesn’t exist for elves. It is the same reason they can sail off into the Undying Lands without circling back around.
hinterlufer@lemmy.world 3 days ago
even if you ignore curvature you have a resolution limit that depends on the aperture. Look up Rayleigh criterion for more info
rimjob_rainer@discuss.tchncs.de 3 days ago
But does it consider magic?
qjkxbmwvz@startrek.website 3 days ago
Except that this problem doesn’t specify distance between horseman, so I think it’s a bit bogus — no.need to resolve an individual person to be able to tell that they’re there. And for hair color, if you make assumptions about the clothes being worn, you could perhaps infer color of hair, even if the hair isn’t resolvable (a person being a “single pixel” would have a different hue depending).
frezik@midwest.social 3 days ago
Didn’t Middle Earth lore say the Earth was flat, but was made spherical later? Had that happened by then?
Revan343@lemmy.ca 3 days ago
Yes, but it’s not spherical for the elves, just the other races, which is why elven boats can sail to the undying lands, but human boats can’t.
huf@hexbear.net 3 days ago
the world was flat until numenor made war on the undying lands. at that point, numenor sank and the world was made round and the undying lands were placed somehow outside them, so that elves could still sail west along the straight way and get there, but everyone else just sailed west around the globe.
later, tolkien changed his mind about a lot of this and played with it, trying to turn it into an always roundworld (scientifically accurate myth was his goal at this point) but couldnt really figure out how it’d work and he was old and then he died
Foofighter@discuss.tchncs.de 2 days ago
You mean the curvature of middle earth, right? RIGHT?!
Revan343@lemmy.ca 1 day ago
Middle Earth is canonically our Earth, in the past
huf@hexbear.net 3 days ago
no, that’s not why. it’s because elves can just see better. it’s the same reason they can walk on top of snow. they are slightly outside the laws that apply to ordinary humans. even aragorn is a hair over the line.
pruwybn@discuss.tchncs.de 3 days ago
How would that even work? Do time zones exist for everybody but elves? As the party travelled east, did Legolas start perceiving the sun to set later than it did for everybody else?
match@pawb.social 3 days ago
If I remember correctly, the sun is the light of Valinor, so the sun actually never sets for Legolas
Confused_Emus@lemmy.dbzer0.com 2 days ago
Doesn’t it? Haven’t come across anything in Tolkien’s works that says this.