Just watched an old Veritasium video about how gravity is an illusion, that the ground we walk on is actually pushing us up, etc. If gravity isn't a force, what is the explanation for a launching astronaut being "pushed" into his seat by G "force"? Shouldn't he feel like he's stationary?
#science #physics #relativity #ExplainItToMeLikeImAFirstGrader

@poemblaze What the astronaut is feeling is acceleration forces, which are measured in G's, but are not gravity.

What is pushing on the astronaut is the jillion pounds of accelerant being fired to counteract the acceleration force of the planet's mass and her own and the space-ships' mass "falling" toward one another.

I'm not sure what they mean by gravity "isn't a force", but it is an effect that exerts force.

@AskTheDevil That makes sense. Relativity is confusing. How can the surface of the globe all be accelerating "up" while it remains the same size?

@poemblaze It's not accelerating up. It's accelerating towards all the other mass, which from the surface of the Earth looks like "down" to us, because the "falling" or acceleration is mostly towards the center of the Earth's mass.

There was a good video a few years back. If I can find it I'll post it. : )

@AskTheDevil So everything is going toward a Catholic church? 😏