Recent content by inertiaforce

Yes there are two more videos in that similar thread where both Brian Greene and Brian Cox are saying the same thing, that the Earth is apparently accelerating upward. I will link the videos here for reference: This video from 9:30 onward (Brian Greene): This video, where Brian Cox says that...

It seems like I may have inadvertently insulted you with my comment about not going over well with the general public. That wasn't my intention. I did not intend it to be an insult. I intended it to mean that this stuff is complicated for the average person to understand. It was a joke about the...

No not exactly lol. I'm a layperson who has studied gravity on his own lol. But I have come to realize that free fall is not an accelerated frame of reference. Prior to today, I was always told that freefall was an accelerated frame of reference. It is only today that I started to realize that...

Lol. "You need proper acceleration to remain stationary." I'm sure that's going to go over well with the general public...

An "inertial frame of reference" is one in which you aren't experiencing accelerated motion, correct?

You are correct Orodruin. I meant to say that you are not "accelerating" in freefall. Thank you for catching the mistake.

According to this video, freefall isn't accelerated motion and is actually stationary. In other words, you aren't moving in freefall:

Thanks for your reference A.T. I agree with you. "Falling" appears to be an ambiguous term.

Guys, take a look at this video. Brian Greene is also saying that Einstein's view was that the Earth rushes up and hits you. You do not fall to the earth. Watch this video from 9:30 to 15:00:

Ok thanks. My mistake lol.

Guys, watch this video from 12:00 to 12:46. Now imagine this explanation from the frame of reference of the ball and feather. From the ball and feather's point of view, could it be said that there is a gravitational field causing the Earth to be accelerated in their direction? Here is the video:

Agreed. My understanding of GR is that since there is no absolute state of rest or absolute state of motion, it is therefore just as valid to say that the Earth is moving toward an object as it is to say that an object is moving toward the earth. Both frames of reference are equally valid...

Nugatory, I liked your explanations. Thank you.

Watch from 4:02: "The reason the ball and the feather fall together is because they're not falling. They're standing still. There is no force acting on them at all. He (Einstein) reasoned that if you couldn't see the background, there would be no way of knowing the ball and the feather were...

According to the video, the ball and the feather aren't falling though. Therefore, there is no force acting on them. The video actually said that Einstein's view was that no force was acting on the feather or on the ball.