Both are curved by mass and everybody takes eucledean cartesian type flat graphs of say x and t as a matter of course.
Gravity bowling ball rubber sheet.
But a ball rolls on a surface because gravity is pulling it down.
It thus makes it seem like gravity pulls the golf ball down because the bowling ball pulls the rubber sheet down.
The flaw is this.
This is nothing at all like the way general relativity works.
You can calculate this gravitational force as the product of the mass m and the gravitational field g.
It is said that a massive object curves space time just like a bowling ball on a rubber sheet and another object near the massive object simply rolls down hill on the rubber sheet that is the reason why we observe that the other object is experiencing gravitational attraction to the massive object which curved the space time.
In the classic classroom rubber sheet demonstration the marble rolls toward the bowling ball because the earth s gravity causes it to roll down hill.
Just placing an object somewhere in that dip will result in it rolling down the slope towards the bowling ball.
Why don t we use one dimension of space and the other of time.
The gravity of the situation this shape can power through just about anything.
The distortions in the rubber sheet representing the distortions in space and time.
Since i read cosmos long ago i see the same analogy about the balls rolling on a rubber sheet used to explain how gravity works.
This comic refers to a common analogy used to explain how mass distorts space time a bowling ball resting on a sheet of rubber distorts the sheet due to its weight.
The point is there is no pushing going on in the general relativistic model of gravity.
It s often misused to show that mass warps spacetime 895.
In the cartoon image of einstein s explanation of gravity a rubber sheet is pulled tight and a bowling ball is placed in the middle.
It isn t just warped space that s involved it is warped space time.
The typical rubber sheet bowling ball analogy to explain gravity visually in layman s terms always seems to be two space dimensions.
General relativity requires a curvature of space time not just space.
This is the result of using a two dimensional analogy of a three dimensional universe.
If an object like a tennis ball is then thrown onto the rubber sheet the tennis ball will gravitate towards the bowling ball.
The rubber sheet analogy only works even for the orbits if you assume that the orbiting object tends to want to roll down hill in the dip made by the bowling ball.
Hd is short for high density which lowers the rg and raises the differential of the weight block.
In space it will follow a straight line and go over any hole on the surface.
