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.
Staffordshire Bull Terrier Vs. Staffordshire bull terriers are smaller than American pit bull terriers. Staffordshire bull terriers and American pit bull terriers -- commonly known as pit bulls -- may look similar at first glance, but they're two distinct breeds. Although both types of dogs sometimes get a bad rap, they can make loyal and loving pets if properly trained and socialized.