Flat Earthers

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He claimed that there is no such thing as gravity, only electro-magnetic forces.

He also could not explain what was causing the flat earth to accelerate at 32ft/s/s in perpetuity perpendicular to its surface. His answer was "Well, we don't know."

I didn't think to ask him what keeps the flat earth from flipping over and everything on it being thrown off into space.
 
Where's this............?
 

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A simple experiment: imagine you are in North America, and your friend is in Asia. In a clear night, measure the elevation angle of the Moon, and record and share your results by phone. Calculate the distance of the Moon, using some trigonometry, supposing both of you are on a flat Earth. Then measure the distance of the Moon by radio echoing method (a radio amateur having the right transceiver and antenna can do it and it has been done many times by average radio amateurs). The two results will not agree. But they will agree supposing a globular Earth of known diameter.
 
So when you shine a laser from North America and another from Asia, at an object say 10 light years away, they would be the same angle of incidence on a flat earth, but would vary greatly on a globular earth.

You know, I'm getting closer to believing the Earth is actually spherical. Leave this with me.
But they're not 10 light years away. They are very small and very close. Do keep up!
 
I did some amateur radio moonbounce experiments back in Florida. That ended when AT&T put a cell tower across the street and raised my noise floor about 10 dB.

If the earth was flat the moon would be visible to all at roughly the same time. On this big round ball, that is not the case. The EME (moonbounce) window from the US to Europe is only open for a few hours. There are charts on the web somewhere that give you the times, and AZ - EL data.
 
The visibility of the moon and the sun are debates that are pages long in Planist doctrine. Believe me, they have it all figured out. Even the moon phases, with is an argument that I don't follow.

This debate has been ongoing for at least 150 years, there isn't a lot that hasn't been covered.
 
The visibility of the moon and the sun are debates that are pages long in Planist doctrine. Believe me, they have it all figured out. Even the moon phases

Good, then one of them should be able to bounce a radio signal off the moon using their math. The transit time is long enough to measure your own echo on an oscilloscope. Roughly 2.5 seconds if I remember correctly. That's assuming you can find one of them that believes in radio.

When I did my EME experiments I could detect my own echo, and hear a few signals on an EME contest day. I used a crude but effective "no math" method of aiming my dish. I mounted a piece of electrical conduit to the dish such that you could sight through it. I lined it up using sun noise in my receiver. Then used it to sight the moon.

I was using a rather unused frequency band (902 MHz) that is only legal for ham use in north America. There was an EME distance record that could be broken by a station in south Florida, which was my objective......never happened.
 
Have any of the flat-earthers ever explained the necessity of map projection?

If the earth were flat there would be one accurate and non-distorting map but instead we have a multitude of different ones depending on purpose which all heavily distort either area or shape.
 
Believe me, they have it all figured out. Even the moon phases, with is an argument that I don't follow.

An interesting contradiction, have you ever considered that there is nothing to follow? I have been asked occasionally by members to not post in their threads on certain subjects one of which involved collapsing the field in a common mode choke to create a scalar wave. Garbage physics plain and simple, there is nothing to follow it is just made up.
 
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