Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster. Sound travels most slowly through gases because the molecules of a gas are farthest apart.

Generally, sound waves travel most quickly through solids, followed by liquids, and then by gases. For a given medium, sound waves travel more slowly at lower temperatures.

Sound waves need to travel through a medium such as solids, liquids and gases. The sound waves move through each of these mediums by vibrating the molecules in the matter. This enables sound to travel much faster through a solid than a gas. Sound travels about four times faster and farther in water than it does in air.

The speed of sound in a medium is determined by a combination of the medium’s rigidity (or compressibility in gases) and its density. The more rigid (or less compressible) the medium, the faster the speed of sound. The greater the density of a medium, the slower the speed of sound.

Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids. Gases are the slowest because they are the least dense: the molecules in gases are very far apart, compared with solids and liquids.

Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through steel than through air.

Light travels faster than sound even in water. If you are asking why sound is slower when it is in air than water, and why light is faster in air than in water, here is why: Light waves are electromagnetic transversal waves. They can travel through a vacuum and any particles they contact slow them down.

Is it possible that dark matter is actually matter that moves faster than light? No. Dark matter has positive mass. Tachyons (faster than light particles) have imaginary mass according to relativity.

Shadow the Hedgehog Shadow’s speed is nearly identical to Sonic’s—arguably superior if you factor in his mastery of Chaos Control teleportation. Sources differ on who is truly faster, but generally give Sonic the edge, especially considering the small boost Shadow gets from his Air Shoes.

Shadow is stronger and Sonic is faster. They have fought many times although in Shadow the Hedgehog (game), Shadow can kill Sonic. And Sonic has beaten Shadow a few times as well.

When in flight, Tails can move at incredible speeds, reaching that of 768 Mph, and can even go fast enough to keep up with Sonic. This makes Tails one of the fastest characters in the series, right behind, or even at the same speed as Sonic.