In physics, escape velocity is the minimum speed needed for an object to break free from the gravitational attraction of a massive body. The escape velocity from earth is about 40,270 km/h (25,020 mph).
Staffordshire Bull Terriers. American Bully. The American Bully was recognized as a breed by the United Kennel Club (UKC) in the summer of 2013. It first appeared in the 1990s and was created by crossing American Pit Bull Terriers, American Staffordshire Terriers, and other breeds.
The American Bulldog is usually broader looking than the Pit Bull. There are several types of dogs that are often lumped together as Bulldogs.. In addition to the Pit Bull and American Bulldog, there is the American Stafforsdhire Terrier, the Bull Terrier, Bulldog, and Bull Mastiff. The Pit bull is not a formally recognized breed by the AKC, and is often used interchangeably with the American Saffordshire Terrier (Below).