When fighting against Metal Sonic defeat him in the first round,and in the second round turn sonic in to super sonic by pressing ... Perfect Complete Stage 1 of Arcade Mode (any difficulty ...

Have you ever sat down and thought “I wonder if a trebuchet could launch a projectile at supersonic speeds ... How about a whip-cracking, sonic-booming speed in excess of 450 meters per ...

The Bell X-1 became ... of civil supersonic aircraft. In fact, the first phase of these tests have already started. Earlier this month, NASA started performing simulated “sonic thumps” over ...