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.
World's tallest dog, from Michigan, dies at age 5. In this photo taken on Sept. 9, 2010, Kevin Doorlag plays with his Great Dane Zeus as Nick Doorlag, right, watches in Ostego, Mich. Zeus, who held the title of world's tallest dog, died last week from old age, just two months short of his sixth birthday.