why does light travel faster than speed?
You are right. The speed of thinking may faster than light. Through 10000 light-years, you only use seconds.
i'm not sure if i am right, but i feel that light is a radiation but sound is a vibration. vibration means moving of mass to and fro, which involves firction, when there is friction, things get slowed down. light is a radiation. it doesnt need any medium to travel. sound travels at different speed in different medium, it travels faster in water than in air and faster in any solid medium than in water.
Faster than speed? Do you mean sound? They travel at different speeds because they are different t ypes of waves. Light travels faster than sound simply because it does - that's just the speed it goes at. Why are some apples red and some apples green? There's no standard color for apples nor is there is a standard speed for waves to travel.
Sound is the vibration of molecules and therefore needs a media to travel through - with sound this media is the vibration of particles or molecules (which have mass) and therefore cannot travel at the speed of light due to Einstein's theory of relativity. Light has no mass and is an Electromagnetic wave - it does display some properties that particles have, yet it does not have to have a medium to travel in - this is proven by the fact we see the sun yet the light has to travel through space (which is a vacuum). NB... Steve C is incorrect, light has no mass but has energy and momentum according to the the equation-: Energy = Plank Constant x Frequency. i.e. the higher the frequency the more energy and momentum it carries. Light (or photons of the EM spectrum) are the carriers of the electromagnetic force which can interact with matter transferring energy between them. Read about the Photoelectric effect and Compton scattering for more details. No-one knows for sure how gravity fits into the picture, it has been postulated that gravity is carried by an entity called the 'gravitron' but as yet it has not been found - it is also said that whatever carries the gravitational force must travel at the speed of light. If somebody discovers the 'gravitational carrier', there is no doubt there will be a nobel prize for them, as this will complete what is known as the 'standard model' in physics.
If you mean why nothing (except light) can travel at the speed of light is because light has no mass. The faster we travel, the heavier our mass becomes, and hence the more energy required to accelerate. To reach the speed of light we would need infinite energy.....which is impossible
