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. Hercules might be the biggest dog in the world, but the tallest according to the Guinness World Records is Gibson, a Harlequin Great Dane, who is 42.2 inches. The 170-pound Dane is more than 7 feet tall, taller than most NBA basketball players.