What Holds People on Earth if Gravity is the Spacetime Fabric?

  • Thread starter Thread starter Nickriener
  • Start date Start date
  • Tags Tags
    Earth Spacetime
AI Thread Summary
Gravity is described as a distortion of spacetime caused by mass, with both the Earth and the Sun influencing this "fabric." The Earth pulls on spacetime just like the Sun, which is why people remain anchored to the Earth's surface. The strength of gravity is determined by the mass of an object, meaning all mass affects spacetime. This leads to the conclusion that spacetime is indeed a property of mass. Understanding these interactions clarifies how gravity operates on Earth and throughout the universe.
Nickriener
Messages
10
Reaction score
0
Ok, so according to Einstein, the Earth is held in by a "fabric" due the the Sun pulling on said "fabric." So my question, what holds people on Earth if gravity is this "spacetime fabric?"
 
Astronomy news on Phys.org
Hi Nickriener! :smile:
Nickriener said:
what holds people on Earth … ?

the Earth also pulls on the fabric. :wink:
 
not only Sun, every objects will pull on the fabric...Earth also unexceptional..so it depends on the size of the object to determine the strength of the gravity..
 
All mass distorts what you call “ space-time fabric”

good point gear300
 
Last edited:
vibjwb said:
All mass has what you call “ space-time fabric”

So that means space-time is also a property of mass?
 

Thread 'How feasible is home radio astronomy?'

Is a homemade radio telescope realistic? There seems to be a confluence of multiple technologies that makes the situation better than when I was a wee lad: software-defined radio (SDR), the easy availability of satellite dishes, surveillance drives, and fast CPUs. Let's take a step back - it is trivial to see the sun in radio. An old analog TV, a set of "rabbit ears" antenna, and you're good to go. Point the antenna at the sun (i.e. the ears are perpendicular to it) and there is...
View full post »

Thread '3I/ATLAS, Interstellar Comet'

3I/ATLAS, also known as C/2025 N1 (ATLAS) and formerly designated as A11pl3Z, is an iinterstellar comet. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) station at Río Hurtado, Chile on 1 July 2025. Note: it was mentioned (as A11pl3Z) by DaveE in a new member's introductory thread. https://www.physicsforums.com/threads/brian-cox-lead-me-here.1081670/post-7274146 https://earthsky.org/space/new-interstellar-object-candidate-heading-toward-the-sun-a11pl3z/ One...
View full post »

Similar threads

I What happens to spacetime during the expansion of the Universe?
Replies
21
Views
3K
B Does the gravitational distortion of mass still exist in the past?
Replies
28
Views
1K
I Is Spacetime a Real Physical Entity or Merely a Conceptual Framework in Physics?
Replies
4
Views
1K
B Could singularities be just rips in the space-time fabric?
Replies
23
Views
5K
Why is gravity stronger on earth than the moon?
Replies
5
Views
7K
B Earth & Moon Gravity Gradient: Investigating Its Impact
Replies
33
Views
5K
I Reconciling smooth spacetime with variable, rotating, earth gravity
Replies
4
Views
1K
B What Causes Mass to Exert Gravitational Pull?
Replies
1
Views
2K
B Space Pulled into Gravity Well: What Happens?
Replies
12
Views
3K
I Earth's orbit not perfect ellipse
Replies
19
Views
2K

Hot Threads

Recent Insights

Back
Top