Drawn on a conventional, and accepted, picture of the earth looks like this; so why is the shorter distance line about 2/3rd longer than the longer distance, what should a 2D map really 'look like'?
Click image to enlarge
10th Jun 2022 2:14 pm
ianm27
Member Since: 02 Jun 2016
Location: Hertfordshire
Posts: 2154
Drunk crow???? Uncle Ray's spare wheel protector
Limo Tint
Blackvue front & rear dashcam
Cruise control switch pack
Bodsy's remote for FBH
10th Jun 2022 3:03 pm
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
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Member Since: 29 Sep 2006
Location: MIDLANDS
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Well, you learn (but still don’t quite understand ) something new every day!
I was not expecting such a complicated answer when I read up ‘Mercator projection’
10th Jun 2022 3:30 pm
RRSTDV8
Member Since: 07 Apr 2014
Location: Here
Posts: 13553
Map (big) vs real (small):
Click image to enlarge
The closer to the equator, the more accurate the size on the map as shown by this animation.
The only way to accurately map a sphere is to map it on to a sphere.Visiting from rrsport.co.uk
2012 RRS SDV6
2008 RRS TDV8
"When you fire that first shot, no matter how right you feel, you have no idea who's going to die! You don't know who's children are going to scream and burn. How many hearts will be broken. How many lives shattered. How much blood will spill, until everybody does what they were always going to have to do from the very beginning: SIT DOWN AND TALK!"
10th Jun 2022 3:51 pm
RogB
Member Since: 15 Jun 2018
Location: Mansfield
Posts: 1729
think of a running track, and the athletes all lining up a the start, they are staggered to allow for the curve of the track meaning they all run the same distance. If they started in a straight line then the runner on the inside lane would run less distance than the runner in the outside lane.
or maybe think of it as the wheels of your D4/FFRR going round a corner. Wheels and axles are fixed but the curve of the bend is also fixed, so the outer wheel will rotate further/more than the inner wheel.
thankfully the earth doesnt suffer from diff wind up 2011 D4 XS 305 MY12 - gone but not forgotten
13th Jun 2022 6:49 am
astonbuilder
Member Since: 29 Sep 2006
Location: MIDLANDS
Posts: 8138
I get it all, just can't believe I'm this old before I realised maps are 'distorted', I blame my dad for not letting me continue geography as a GSCE option as it was a 'useless subject'.....
13th Jun 2022 7:02 am
RRSTDV8
Member Since: 07 Apr 2014
Location: Here
Posts: 13553
I think much of the stuff taught under the heading "geography" is human geography rather than the physical nature of the world. Certainly, talking to friends who took geography at O level / GCSE that appears to be the case. You might have taken the course and still not known about this issue. Visiting from rrsport.co.uk
2012 RRS SDV6
2008 RRS TDV8
"When you fire that first shot, no matter how right you feel, you have no idea who's going to die! You don't know who's children are going to scream and burn. How many hearts will be broken. How many lives shattered. How much blood will spill, until everybody does what they were always going to have to do from the very beginning: SIT DOWN AND TALK!"
13th Jun 2022 7:58 am
galwaygreen
Member Since: 30 Oct 2011
Location: plymouth
Posts: 6525
Rogb....thanks i get it now....always amazes me how they map space
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) something new every day!
