A worker using a gin could do the work of 50 people cleaning cotton by hand. Because of the gin, planters could now grow cotton at a huge profit. Eli Whitney actually made the Cotton gin April 1793.
Stapafell is a volcanic mountain on the south side of SnÃ¦fellsjÃ¶kull. This palagonitic pyramide is 526 m in height og rather eroded at the sides. On the top of the mountain is Fellskross, which was a sign of holy powers at the times of the vikings. It is said that the mountain is home of hidden people, also called elves.
Wave Rock in Western Australia is so named because that is exactly what it looks like: an ocean wave. It forms one side of a hill that is known as Hyden Rock. The granite rocks date back 2.63 billion years. Wave Rock is known as a flared slope because of its curving shape. Both Wave and Hyden rocks are located in Hyden Wildlife Park, a nature preserve.