Recent content by Jorjy

Yeah, I think my problem is that I'm not considering the time component of spacetime.. It's difficult for me to conceptualize curved spacetime. Even the cone is confusing to me because the time coord wraps around to meet back at the original point. Anyway, I'll keep thinking about it...

Thanks Matterwave and DrGreg. DrGreg, I was thinking about curved spacetime as in the picture on the link you gave when I asked my question. I understand how a moving object follows a straight line along the curved spacetime. What I am wondering about is why an object that is placed at rest...

This might be a stupid question.. Why does curved spacetime cause objects with mass to accelerate towards each other? If I placed a massive particle next to a larger massive object, at rest with respect to the large object, shouldn't the particle stay at rest?

I have some questions about the relationship between the charge of a proton and an electron. Is it well understood why the charges are equal? I understand that the quarks that make up a proton each have (+/-)1/3 charge, but I am curious why the charges balance out the way they do. Is the...

I don't know what you mean by this. Don't the photons move at the speed of light from the object, but they are red-shifted by the gravity of the black hole more and more as the object approaches the EH? So wouldn't the observer would see the object's colors shift out of the visible spectrum...

I'm a little confused about what an observer would see while watching something fall into a black hole. From what I've read, an observer would see the object appear to move slower as it approaches the event horizon, due to time dilation, and it woud take an infinite amount of time to reach the...