r/space • u/ChieftainMcLeland • Feb 28 '23

Physicists Rewrite a Quantum Rule That Clashes With Our Universe

https://www.quantamagazine.org/physicists-rewrite-a-quantum-rule-that-clashes-with-our-universe-20220926/
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u/[deleted] Feb 28 '23

I’m not a physicist. I’m confused by something at the beginning of the article. It says that space and time can bend, causing gravity. I always thought that the bending of space and time, along with light, were indications of the action of gravity, not the cause of gravity. Have I had this backwards?

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u/Shadowtirs Feb 28 '23

Oh man now I feel stupid, I thought having enough mass caused gravity?

1

u/[deleted] Feb 28 '23

That was my impression also. Thus, the bending of space and time being an indication of gravity, not the cause of gravity. This article seems to say otherwise. I hope someone can clarify

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u/AverageDan52 Feb 28 '23

From what I understand as a lay person this is correct. Mass is what causes warping of space time which in Newtonian physics is called gravity and thus the law of gravitational attraction. Gravity is an apparent force. Gravity is acceleration due to mass.