Proof the Earth is round

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acceptance said:
Fair enough. I would like to perform the laser experiment myself at the very least.
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The hard part of using a laser for that type of experiment is dealing with reflection and/or refraction off the water's surface
 
VonBonfire said:
That's kind of the clincher. Seems many people have tested that across large bodies of water and found zero curve. The globe earth defenders will just cry "bias confirmation" and pretend like the tests never happened.
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Don't believe those lyin' eyes!

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MadAsAHatter said:
The hard part of using a laser for that type of experiment is dealing with reflection and/or refraction off the water's surface
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How so? As the water should be curving away from the beam, and the beam is highly focused anyways, I don't see how it would be an issue.
 
VonBonfire said:
That's kind of the clincher. Seems many people have tested that across large bodies of water and found zero curve. The globe earth defenders will just cry "bias confirmation" and pretend like the tests never happened.
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That’s because there never has been a test that shows that
 
acceptance said:
How so? As the water should be curving away from the beam, and the beam is highly focused anyways, I don't see how it would be an issue.
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Why would a laser not reflect off water if it was curving?
 
acceptance said:
And I forgot to mention another strike against globe Earth (in my mind anyways)... You can't have a gas next to a vacuum without a solid barrier or gas impermeable membrane. But I guess that miraculous gravity force takes care of that too somehow. 🤷‍♂️
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Technically, space isn't a vacuum. Particles are so far apart it is especially a vacuum, but not a perfect one.

You may be thinking of the "vacuum of space" in the wrong way. It doesn't mean it pulls molecules away from each other or anything like that. It refers to there bein near zero friction.

Gravity plays a part in keeping the atmosphere together, but there are other attractive forces at play as well. Electrostatic or Van der Waals forces for example attract small particles to each other.
 
acceptance said:
How so? As the water should be curving away from the beam, and the beam is highly focused anyways, I don't see how it would be an issue.
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It's an issue in an uncontrolled experiment like trying to do it over a lake or something like that. The water and other environmental factors such as moisture in the air or even the general atmosphere will mess with the laser and skew the results.

There have been a couple of controlled experiments in a lab that show a curve in the water. Even those had a bit of a difficult time removing all interferences.
 
acceptance said:
How does gravity hold a gaseous atmosphere from being flung off a huge spinning ball, but yet a helium balloon floats away?
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There isn’t a line where the atmosphere stops. There is just less and less of it until there isn’t enough to be considered atmosphere anymore. It’s incorrect to think of it as a container
A helium balloon is less dense than the air near the ground, so it rises. Theoretically if it didn’t pop, it would keep floating until the air was so thin that it was equal to the density of the balloon. Remember equilibrium?
 
MadAsAHatter said:
It's an issue in an uncontrolled experiment like trying to do it over a lake or something like that. The water and other environmental factors such as moisture in the air or even the general atmosphere will mess with the laser and skew the results.

There have been a couple of controlled experiments in a lab that show a curve in the water. Even those had a bit of a difficult time removing all interferences.
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I guess it would be a matter of many people doing the best they can with what they have access too. From what I've seen it is repeatable. Might not be perfect, but depending it might satisfy me personally.
 
acceptance said:
How does gravity hold an gaseous atmosphere from being flung off a huge spinning ball, but yet a helium balloon floats away?
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Maybe globe earth is real, but it's like a round ball made of swiss cheese so the birthday balloons can still make people happy.
 
I already posted what Earth looks like, just study surface tension. We are almost a ball but bulge a little in the southern hemisphere but it is virtually unrecognizable.
 
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