It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
originally posted by: butcherguy
a reply to: leastofthese
Yeah, that's the ticket. A flat earth thread!
It has been done to death, considering that it is THE worst conspiracy theory ever, IMHO.
originally posted by: AdmireTheDistance
originally posted by: reldra
When I post about chemreails, I am told the same.
There's a reason for that.
originally posted by: CagliostroTheGreat
leastofthese
Behold, the Wall of Text! I'm not saying the Earth isn't flat but...
All findings shall be posted, as the author wishes this to be an open forum, and hopes for a fair discussion on the results of collected data.
originally posted by: jacygirl
a reply to: leastofthese
Hello leastofthese!
I will be following your thread...and if you don't mind, I'd like to leave you a video (if you haven't seen this one yet). Please don't be put off by the length...by the time he's reached the 40-50th 'proof'...you will likely want to see it all.
S&F
jacy
originally posted by: Blueracer
a reply to: butcherguy
I don't know about the worst. Have you heard of the Mandela Effect? Both are pretty bad though.
originally posted by: reldra
originally posted by: butcherguy
a reply to: leastofthese
Yeah, that's the ticket. A flat earth thread!
It has been done to death, considering that it is THE worst conspiracy theory ever, IMHO.
When I post about chemreails, I am told the same. Let him present something. We'll see.
Eratosthenes was a Greek astronomer in ancient times. Around 240 B.C. he made the first good measurement of the size of the Earth. How did he do that?
Eratosthenes used the lengths of shadows to figure out how high in the sky the Sun was in a certain place on a certain day. He knew of another place where there was no shadow at all on the same day. That meant the Sun was straight overhead. He found out the distance between the two places, then used some geometry to figure out the rest. Let's take a closer look!
Eratosthenes lived in the city of Alexandria. Alexandria is in northern Egypt. It is by the Nile River and the Mediterranean Sea. There was a tall tower in Alexandria. Eratosthenes measured the length of the tower's shadow on the Summer Solstice. He used that information plus some geometry to figure out the angle between the Sun and straight up.
There was a town in southern Egypt called Syene. There was a well in Syene. On the Summer Solstice, the Sun shone straight down the well to the very bottom. That meant the Sun must be straight overhead.
Eratosthenes had someone measure the distance between Alexandria and Syene. He used that distance, what he knew about the Sun's angles, and a bit of geometry to figure out the size of the Earth.
We aren't quite sure what answer Eratosthenes came up with, though. The distance between Alexandria and Syene was measured in stadia. The stadion was a distance unit that was often used in ancient times. However, not everybody used a stadion of the same length. If Eratosthenes used one length for the stadion, his answer was really, really good. The Earth is about 40 thousand kilometers (about 24,860 miles) around. The measurement that Eratosthenes made might have been within about 1% of this. That would be amazing! However, he might have used a different length stadion. If that is true, his answer was off by about 16%. That is still pretty good!
originally posted by: eisegesis
All findings shall be posted, as the author wishes this to be an open forum, and hopes for a fair discussion on the results of collected data.
I'm confused.
What data?
The author?
What are all the stars and flags for?
Suspense?
originally posted by: Blueracer
a reply to: butcherguy
I don't know about the worst. Have you heard of the Mandela Effect? Both are pretty bad though.
originally posted by: butcherguy
originally posted by: reldra
originally posted by: butcherguy
a reply to: leastofthese
Yeah, that's the ticket. A flat earth thread!
It has been done to death, considering that it is THE worst conspiracy theory ever, IMHO.
When I post about chemreails, I am told the same. Let him present something. We'll see.
Or, I could present something:
windows2theuniverse
Eratosthenes was a Greek astronomer in ancient times. Around 240 B.C. he made the first good measurement of the size of the Earth. How did he do that?
Eratosthenes used the lengths of shadows to figure out how high in the sky the Sun was in a certain place on a certain day. He knew of another place where there was no shadow at all on the same day. That meant the Sun was straight overhead. He found out the distance between the two places, then used some geometry to figure out the rest. Let's take a closer look!
Eratosthenes lived in the city of Alexandria. Alexandria is in northern Egypt. It is by the Nile River and the Mediterranean Sea. There was a tall tower in Alexandria. Eratosthenes measured the length of the tower's shadow on the Summer Solstice. He used that information plus some geometry to figure out the angle between the Sun and straight up.
There was a town in southern Egypt called Syene. There was a well in Syene. On the Summer Solstice, the Sun shone straight down the well to the very bottom. That meant the Sun must be straight overhead.
Eratosthenes had someone measure the distance between Alexandria and Syene. He used that distance, what he knew about the Sun's angles, and a bit of geometry to figure out the size of the Earth.
We aren't quite sure what answer Eratosthenes came up with, though. The distance between Alexandria and Syene was measured in stadia. The stadion was a distance unit that was often used in ancient times. However, not everybody used a stadion of the same length. If Eratosthenes used one length for the stadion, his answer was really, really good. The Earth is about 40 thousand kilometers (about 24,860 miles) around. The measurement that Eratosthenes made might have been within about 1% of this. That would be amazing! However, he might have used a different length stadion. If that is true, his answer was off by about 16%. That is still pretty good!
Humans have known that the Earth is round for a long time... long enough that Eratosthenes could figure out the circumference, in 240BC.