- #1
PaoloG
- 5
- 0
Hi all guys,
for what I have understood from general relativity theory, gravity force is "just" a space-time distortion as a result of peculiar property of matter having mass. So it is not a real force, or saying with different words, if I'm in a lab without window, in a gravitational field, without contrains to motion there is no way for me to measure any gravitational force. I just feel the force when I try to escape from the "plain" trajectory in the distorced space-time.
So my question is: why the phisicists are trying to unify the gravity with the other natural forces? I would say that it is ok to say there we can think a EM field across the space-time, hence we can talk about photons moving in a distorced space-time, but there is no gravitational field in the space-time it is the space-time itself, so why we look for gravitons?
A second question related is: according to the general relativity theory the space-time is a local concept, ther is no absolute space-time reference, is this concept taken into account in the string theory? If not how can it be correct?
sorry for my questions that could look ingenuous, I like science but I'm not physicist...
for what I have understood from general relativity theory, gravity force is "just" a space-time distortion as a result of peculiar property of matter having mass. So it is not a real force, or saying with different words, if I'm in a lab without window, in a gravitational field, without contrains to motion there is no way for me to measure any gravitational force. I just feel the force when I try to escape from the "plain" trajectory in the distorced space-time.
So my question is: why the phisicists are trying to unify the gravity with the other natural forces? I would say that it is ok to say there we can think a EM field across the space-time, hence we can talk about photons moving in a distorced space-time, but there is no gravitational field in the space-time it is the space-time itself, so why we look for gravitons?
A second question related is: according to the general relativity theory the space-time is a local concept, ther is no absolute space-time reference, is this concept taken into account in the string theory? If not how can it be correct?
sorry for my questions that could look ingenuous, I like science but I'm not physicist...