Is gravity acceleration or curvature? Relativity 16

Not many general relativity popularizations distinguish acceleration and curvature, and even suggest that gravity is… both. I know I did. Yet, these are mathematically very, very distinct. So, allow me to clarify myself by drawing the line between what gravity is, and what it is not!

The Massive Puzzle of Gravity | Science4All Article
http://www.science4all.org/le-nguyen-hoang/gravity/
Spacetime of General Relativity | Science4All Article
http://www.science4all.org/le-nguyen-hoang/spacetime-of-general-relativity/
Don’t heavier objects fall faster? Galileo’s Thought Experiment | Science4All 12
https://www.youtube.com/watch?v=Vz9q-TuBrgo
How did Newton figure out gravity? On the shoulders of giants | Science4All 13
https://www.youtube.com/watch?v=tHq3_0dxLQ0
Are astronauts weightless? Einstein’s happiest thought | Science4All 14
https://www.youtube.com/watch?v=9s2tObpO_rU
What’s Einstein’s gravity? General relativity explained! Science4All 15
https://www.youtube.com/watch?v=zZDoSpiIxs0
What proved general relativity? Einstein’s heart palpitations | Science4All 17
https://www.youtube.com/watch?v=IxS_4Z6_wBA

Is Gravity An Illusion? | Space Time | PBS Digital Studios
https://www.youtube.com/watch?v=NblR01hHK6U
Can a Circle Be a Straight Line? | Space Time | PBS Digital Studios
https://www.youtube.com/watch?v=D3GVVkPb3OI
Can You Trust Your Eyes in Spacetime? | Space Time | PBS Digital Studios
https://www.youtube.com/watch?v=P4rW_pPbD-U
General Relativity & Curved Spacetime Explained! | Space Time | PBS Digital Studios
https://www.youtube.com/watch?v=AwhKZ3fd9JA
What’s gravitational time dilation? Twin & Grandfather paradox | Science4All 20
https://www.youtube.com/watch?v=wV9yqfNQTgo

Questions?

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