Yes, they do. But they sometimes travel a straight line through bent space.
Light is a particle that acts like a wave and therefore does not travel in a straight line. light has nothing to do with gravity, the fourth dimension or the 'fabric' of space time.
no
true
the photons travel outward from a light source in all directions.
Photons travel outward from a light bulb in all directions
Photons do travel in a straight path. To a person observing the photons though they will appear to be curved because of the gravitational field.
Light is a particle that acts like a wave and therefore does not travel in a straight line. light has nothing to do with gravity, the fourth dimension or the 'fabric' of space time.
As particles photons travel in a straight line unless they are diverted by reflection, refraction, or a magnetic or gravitational field. Note that when it comes to gravity it can also be represented that the light continues in a straight line - but the space it travels through is curved so its path appears curved to the outside observer.
The light leaving a flashlight when it is turned on and then off will tend to move in a straight line. The problem is that there is air that the light will have to move through. The air will scatter or even absorb the photons. Eventually all the photons will be scattered and absorbed. If the experiment was conducted in outer space, the photons would travel a great distance as there is little in the way of particles to scatter the photons. Here on earth, the atmosphere would absorb the energy as there is relatively little of it released from the flashlight.
no it does not
no
No. All photons travel at the speed of light.
Straight line.
it does not
no
no it does not
Photons travel outward from a light bulb in all directions.