On the contrary, I explained that specific point [why the atmosphere doesn't go away] to you correctly. I can provide further explanation if you ask. But if you choose to reject reality, that's your problem, not mine.

To be fair, I don't think Lad is a conman. I think he's unable to see the errors in some of the people he follows. Some of them are conmen; I think Dubay falls in that category.

He is unable to see the errors because he doesn't appear to have any scientific training. That may not be his fault. He went to college for humanities, so he probably never studied any science beyond high school. And science education in the US is abysmal. But people who don't know a field should have at least some level of humility and defer to people who actually do know that field. That's one place where Lad could do better.

So unfortunately, Lad didn't see the errors in various "arguments" he heard about FE. And that being a while ago, he probably can't actually remember any of these "arguments" with any detail. Notice that the most detailed "argument" so far is a reference to an unspecified PBS show that allegedly "faked" some images. Even if everything Lad said about that were true, it would only mean some people made a bad argument - it wouldn't prove the earth is flat.

And so now he believes several false "arguments". If anyone were to refute an argument, he would just bring up another "argument", and another, and eventually circle back to the first one as if it had not been refuted.

It may not be his fault to not even understand some commonly known basic technical facts about the real world (3D geometry etc), but it is his fault to act as if he did when he doesn't. He's not completely illiterate.

and which no scientific writing I've ever seen used to explain why the atmosphere doesn't leave the earth.  They use a combination of air pressure and gravity.

"Air pressure and gravity" would be equivalent, though arguably involving more difficult concepts.

Still, other than helium and hydrogen, most molecules in the atmosphere do not achieve escape velocity, and that is why they don't escape.

If you have any questions, ask.

"Air pressure and gravity" would be equivalent, though arguably involving more difficult concepts.

Still, other than helium and hydrogen, most molecules in the atmosphere do not achieve escape velocity, and that is why they don't escape.

If you have any questions, ask.

They don't need to achieve escape velocity.  Air Pressure would push/force them out into the vacuum.  "Force" of gravity is not strong enough to counteract the air pressure pushing out into the vacuum.  Helium balloons effortlessly counteract the "force of gravity" as do butterflies.

Gravity doesn't exist as claimed, and even mainstream science admits this.  Kaku gave an interview in which he described the "crisis in cosmology", that their models are off by a factor for 1 to the 20th power.  That's because, as Tesla said, they go off into mathematical fantasyland, all in puruist of Einstein whose theory was invented (actually plagiarized from other physicists) all in order to reject the findings of Michelson-Morley that the earth is motionless.  Airy's Failure also demonstrates the fact that the earth is motionless.

Ridiculous.  You just make stuff up.  Where's your math?  They don't need to achieve escape velocity.  Air Pressure would push/force them out into the vacuum.  "Force" of gravity is not strong enough to counteract the air pressure pushing out into the vacuum.  Helium balloons effortlessly counteract the "force of gravity" as do butterflies.

Where's YOUR math?

I'm glad to see you're not saying vacuums suck, because that's not really accurate. Saying gas pressure pushes is better. But gravity does counteract atmospheric pressure.

In this context, "not achieving escape velocity" is an equivalent way to say "being held back by gravity".

Any thing that escapes earth's gravity has to achieve escape velocity to do so. We use rockets for that. Gravity is more than strong enough to hold most things - including the molecules in the atmosphere - from escaping. Helium balloons rise to a point but neither they nor butterflies escape into space.

Molecules don't have rockets, but other mechanisms in the atmosphere can give them kinetic energy. Kinetic energy is .5 m v^2. For molecules of the same kinetic energy, the lower mass molecules have a higher velocity. And that's why, if they get enough energy, helium and hydrogen can and do escape. Other molecules can too, but they need a higher kinetic energy to have sufficient velocity.

I should add that the amount of matter that escapes is tiny compared to the mass of the atmosphere of the earth. Hydrogen is also added to the atmosphere by other means.

There is no such thing as gravity...

What quibble are you making now? You experience gravity all the time.

Regardomg "escape velocity":

https://www.theguardian.com/notesandqueries/query/0,,-197342,00.html

Escape velocity simply refers to the point at which you don't have to do "any more work" in order to keep going.  But the air pressure is there and should provide the impetus for these particles to continue moving.

Please, show us your flat earth model, with sizes, shapes, and trajectories of sun and moon, resulting in the expected moon phases and eclipse shadows.

I have no horse in this race, I could care less if the earth is flat or a globe, that said, you ask for detailed information above, but I have a simple question that will convince everyone without a doubt:

Show me a real picture of the round earth. The USA has supposedly gone to Mars, but they took no pictures of Earth? Thanks and God Bless.