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.
If the droplet falls to the floor and evaporates there, a stalagmite could grow upwards from the cave floor. The limestone that makes up these cave formations is known as travertine and is a chemical sedimentary rock. A rock known as tufa is a limestone formed by evaporation at a hot spring, lake shore, or other area.