What is an Arc ? | Arc in Circuit Breaker Before going through details of arc quenching or arc extinction technologies employed in circuit breaker we should know first what is arc actually. What is an Arc ?
Meet the World's Tallest and Shortest Dogs! Gibson and Boo Boo. These are the extremes: the world's tallest dog Gibson (7 ft / 2.1 m tall when standing on his hind legs) has met Boo Boo (4 in / 10 cm high) the world's smallest dog in Sacramento, California for Guinness World Records Day 2007.
By Zeus! 7'4 dog declared world's tallest. A Great Dane called Zeus who towers 7 feet 4 inches on his hind legs is named the tallest dog ever recorded in Guinness Book of World Records. 9:51AM BST 13 Sep 2012.