An angle in special relativity refers to the measurement of the separation between two objects in four-dimensional spacetime. It takes into account both the spatial and temporal dimensions and is affected by the relative motion and gravity of the objects.
The angle between two objects is affected by special relativity due to the concept of time dilation. As one object moves closer to the speed of light, time appears to slow down for that object, causing the angle between it and another object to appear smaller than it actually is.
No, the angle between two objects cannot be greater than 180 degrees in special relativity. This is because the speed of light is considered to be the maximum speed at which an object can travel, and therefore, the angle between two objects cannot exceed 180 degrees.
The concept of length contraction in special relativity results in the objects appearing shorter in the direction of motion. This can cause the angle between two objects to appear smaller than it actually is, as the distance between the objects may be contracted in the direction of their relative motion.
Yes, the angle between two objects can change in special relativity. This is due to the effects of time dilation and length contraction, which can cause the objects to appear to be in different positions relative to each other depending on their relative motion and gravity.