>>18162067Flerfers often claim the globe can't be real because "gas pressure without container = impossible." They claim that Earth's atmosphere would violently fly off into space without a container, and deny that gravity could hold gas molecules to Earth. Are they right?
First, let's establish via experiment that a force can create gas pressure. In this case it's magnetism, but we just want to debunk the idea that a container is absolutely necessary.
https://en.wikipedia.org/wiki/Magnetic_confinement_fusionNext let's look at the force of gravity.
Escape velocity for Earth: 11,186 m/s (meters per second)
Source:
https://www.omnicalculator.com/physics/escape-velocityMolar mass of H2O: 18.01528 g/mol
Source:
https://www.google.com/search?q=h2o+molar+massRoot Mean Square Velocity of H2O at 1,200C/1,473.15K, the peak temperature in the Exosphere: 1,428.17 m/s
Source:
http://calistry.org/calculate/kineticTheoryVelocityCalculatorAt 1,200C H2O is moving at a velocity which is 9,757.83 m/s too slow to escape Earth's gravity (only 12.8% of the required velocity). It's moving fast enough to move up and out of a pressurized container opened in a room in vacuum. But if that room extended all the way to space, the H2O molecules would never get to the top and escape. They would literally run out of kinetic energy, like a rocket running out of fuel, and fall back down.
At 75F/297.039K H2O is only moving at 641.30 m/s, or 5.7% of the required speed to escape Earth.
Since oxygen exists as O2 in the atmosphere, and nitrogen as N2, H2O is the fastest moving of the three. It's also much faster than CO2.
Earth does lose a very, very tiny amount of its atmosphere to space each year. This occurs due to other factors which impart much more energy to the atoms and molecules lost, which were already at the extreme edge of our atmosphere. It's a slow leak that will not significantly alter Earth's atmospheric composition for the life of our solar system (billions of years).
