The "World Speed Record" refers to the highest speed achieved by a vehicle, whether on land, water, or in the air. These records are officially recognized by organizations like the Fédération Internationale de l'Automobile (FIA) for land vehicles and the National Aeronautic Association (NAA) for aircraft. Each category has specific rules and conditions that must be met for a record to be validated. Land speed records are often set by specially designed vehicles, such as the ThrustSSC, which became the first car to break the sound barrier in 1997. In aviation, the Lockheed SR-71 Blackbird holds the record for the fastest manned aircraft. These records showcase human ingenuity and engineering advancements in speed.