PureX
Veteran Member
Those Greeks were clever folks.
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How would You prove the World is Round?
- Thread starter Laika
- Start date
Cooky
Veteran Member
[I know the obvious answer is NASA photos from outer-space, but I want to see who can figure it out the old-fashioned way.]
Dang! I was just about to say that.
If there are still operable planes, it kinda negates the need for me to do much more than take someone up in one to demonstrate the earth is round.
Cooky
Veteran Member
Yeah, but all the fuel tanks have rust holes in them.
There's no way those planes are getting off the ground. 
Cooky
Veteran Member
Wandering Monk
Well-Known Member
How else would you prove you’re better than everyone else other than to prove others wrong.
That's the fun of it!
Wandering Monk
Well-Known Member
How's the eye?
Shad
Veteran Member
The year is 2153. Technological civilisation has collapsed and all the knowledge of previous generations has been lost in the mists of time.
You are amongst the survivors, now trying to rebuild civilisation. You have heard a rumour that the "ancients" of previous centuries believed the world is round. So you decide to investigate.
Using your own observations based on your sense-perception, how would you set about proving (or disproving) this that world is round?
[I know the obvious answer is NASA photos from outer-space, but I want to see who can figure it out the old-fashioned way.
Horizon limits as per the Greeks millennia ago.
Cooky
Veteran Member
Twilight Hue
Twilight, not bright nor dark, good nor bad.
Look at every planet out there. Look at the moon. What shape are they?The year is 2153. Technological civilisation has collapsed and all the knowledge of previous generations has been lost in the mists of time.
You are amongst the survivors, now trying to rebuild civilisation. You have heard a rumour that the "ancients" of previous centuries believed the world is round. So you decide to investigate.
Using your own observations based on your sense-perception, how would you set about proving (or disproving) this that world is round?
[I know the obvious answer is NASA photos from outer-space, but I want to see who can figure it out the old-fashioned way.
Heyo
Veteran Member
It were the Greek of course. If has to do with science or philosophy it's most probably the Greek, if it's law or architecture the Romans are the better bet.
Eratosthenes - Wikipedia
PureX
Veteran Member
So I was 1/3 right.
The year is 2153. Technological civilisation has collapsed and all the knowledge of previous generations has been lost in the mists of time.
You are amongst the survivors, now trying to rebuild civilisation. You have heard a rumour that the "ancients" of previous centuries believed the world is round. So you decide to investigate.
Using your own observations based on your sense-perception, how would you set about proving (or disproving) this that world is round?
[I know the obvious answer is NASA photos from outer-space, but I want to see who can figure it out the old-fashioned way.
Well, the old fashioned way might go something like this:
The Moon is a giant cheese which has been cut and molded into a round shape.
Skwim
Veteran Member
I always thought Eratosthenes' method for finding the size of Earth was kind of ingenious in that it also showed the Earth is a sphere.
Illustration Eratosthenes' method for calculating the circumference of the Earth.
Sunbeams are shown as rays hitting the ground at Syene (modern Aswan) and
Alexandria. The angle between the sunbeam and the gnomons (vertical pole) is
7% (~1/50th of 360 circle). Eratosthenes calculated the circumference of the
Earth by multiplying the distance between Alexandria and Syene by 50.
Source: Wikipedia
.
.
Sunbeams are shown as rays hitting the ground at Syene (modern Aswan) and
Alexandria. The angle between the sunbeam and the gnomons (vertical pole) is
7% (~1/50th of 360 circle). Eratosthenes calculated the circumference of the
Earth by multiplying the distance between Alexandria and Syene by 50.
Source: Wikipedia
.
.
Last edited:
Wandering Monk
Well-Known Member
God I love those Greeks!
Bob the Unbeliever
Well-Known Member
The year is 2153. Technological civilisation has collapsed and all the knowledge of previous generations has been lost in the mists of time.
You are amongst the survivors, now trying to rebuild civilisation. You have heard a rumour that the "ancients" of previous centuries believed the world is round. So you decide to investigate.
Using your own observations based on your sense-perception, how would you set about proving (or disproving) this that world is round?
[I know the obvious answer is NASA photos from outer-space, but I want to see who can figure it out the old-fashioned way.
I would observe the shadow of the earth on the face of the moon, over more than one eclipse.
A flat earth, would eventually display a varying shape in the shadow, only a spherical-like object would show the consistent shadow we observe.
Done.
I would tell them to go and jump off the edge of the earth. Kinda like this clip (love this show)
Watch from min 16:00 to 16:40. If Dinosaurs could do it, so can I
roger1440
I do stuff
If "all the knowledge of previous generations has been lost in the mists of time", we would be back to hunting and gathering. My fellow cave dwellers would write me off as a nut case for contemplating whether the Earth is round or not. We would have more pressing issues to wrestle with.The year is 2153. Technological civilisation has collapsed and all the knowledge of previous generations has been lost in the mists of time.
You are amongst the survivors, now trying to rebuild civilisation. You have heard a rumour that the "ancients" of previous centuries believed the world is round. So you decide to investigate.
Using your own observations based on your sense-perception, how would you set about proving (or disproving) this that world is round?
[I know the obvious answer is NASA photos from outer-space, but I want to see who can figure it out the old-fashioned way.