A needle placed carefully on water, however, can be supported by the surface tension-the liquid responds in a way similar to a stretched membrane. Try it at home-see what you can get to float on water. One way to think of surface tension is in terms of energy. The larger the surface, the more energy there is.
The Airedale is the largest of the British terriers. They weigh 20â30 kilograms (44â66 lb) in fit condition and have a height at the withers of 58â61 centimetres (23â24 in) for males, with females slightly smaller. The American Kennel Club standard specifies a very slightly smaller dog.
The Rat Terrier is a small and sturdy dog and should be between 13 to 16 inches in height. The UKC doesn't have a specified weight for standard Rat Terriers as each individual dog has a different weight for their height. The Decker Rat Terrier is slightly larger than the Rat Terrier and should range between 22 to 40 pounds. A male should be 16 to 19 inches in height while a female should be 16 to 17 inches. The miniature Rat Terrier should weigh 10 to 18 pounds and should not be larger than 15 inches in height. The toy Rat Terrier is an even smaller version of the breed.