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.
Scroll down for video. Paws for applause: 3.8in high Milly the chihuahua has been crowned the world's smallest living dog by Guinness World Record officials. Milly is constantly accompanied by Ms Eizzil or by her owner, Argentinian Vanessa Semler, who is dedicated to rearing chihuahuas in Puerto Rico.