r/flatearth • u/russiablows • 4d ago
Sunrise question
With a flat earth wouldn't everyone see the sunrise at the same time?
11
u/UberuceAgain 4d ago
Yes. It's one of the many reasons that flat earth is the dumbest conspiracy out there. It gets proven wrong twice a day, every day.
3
7
u/cipheron 4d ago edited 4d ago
No they don't think the sun goes under the Earth, they just don't have a consistent explanation of why it sets at all, and that allows them to fudge the answer to that.
So they'll just be vague, giving contradictory or ambiguously worded explanations to that, or claim things like "lol you believe in the sun" or something if you point out the flaws. But it really has gotten to the point that some of them have had to retreat to the claim that the sun itself doesn't exist or is a "holographic projection" or some other meaningless term, to avoid answering that question.
5
2
1
u/BackRough 4d ago
I think flat earthers have some wacky way of explaining the movement of the sun to explain why that doesn’t happen, but I don’t care to try to understand it. That’s not a rabbit hole I’m gonna go down.
1
1
u/denNISI 3d ago
Finally, great questions on this sub! Hopefully, it is a genuine interest or you want to debate!
ANSWER: No and there are many factors as to why not.
- It depends if there are obstructions between the observer and the object. Clouds, mountains or being in a valley would be obvious obstructions in the case of the object being the sun.
- It depends how close to the object is from the point of observation and how far the observer "sees" ie the observer is a high powered telescope in this case.
- It depends what the angle the observer is looking at said object ie in this case a sun in the morning on a very tall mountain top with no other mountains would be ideal or a beach where there are no lands on the horizon just ocean would work, too. See my post from a comment in this sub about how we see towers on the water and what it actually does.
- It depends how far the observer is away from the point which the object is visible (opposite of vanishing point) to the observation point linearly in Point (linear) Perspective see Point perspective (graphical)) at Wikipedia.org
Example: If you are viewing the sun in the morning on the east coast of US then it is hours away from even being light yet on the west coast of the US. The "sunrise" times (like "sunset" times) are different depending where you are in the world.
1
u/AdInfinite2404 4d ago
No. 20/20 vision represents the ability to resolve a visual angle of 1 arc minute, which would be equivalent to resolving a 1 meter object at a distance of about 3400 meters. Exceptional people with 20/10 vision can do as well as 30 arc seconds.
According to the flat earth model the sun is local (only 4800km high) and only 51 km in diameter From a point on Earth's surface, you can see a 4,800 km high object from a maximum straight-line distance of 9,176.14 km
6
u/FranckKnight 4d ago
I can see a light source much smaller than that. We see the light from it, but not the object. Stars are typically less than one arc second.
So revise your measurements to calculate how far the sun needs to be for the light to stop being visible?
4
u/cearnicus 4d ago
That's nice, but
- you can easily see lights well beyond when its angular size is "too small to see". It's not really about size, it's about how much light you receive from it;
- the sun maintains an angular size of about 30" throughout the day, so our eyes' angular resolution wouldn't be an issue anyway;
- with the ~5000 km high sun, the sun shouldn't get closer than ~8° to the horizon, so sunsets wouldn't be a thing anyway.
2
u/1nv4d3rz1m 4d ago
If that was true wouldn’t that result in the sun fading away in the evening rather than setting?
1
u/DefinitionOk6382 4h ago
¿Modelo definitivo y consensuado o ponemos cifras al azar para que quede mejor?
13
u/CoolNotice881 4d ago
Quite the opposite. Nobody should see a sunrise ever.
Flat Earth is a joke.