Dishwasher
By: Lucus Austin
What it does
It cleans dirty dishes with 2 long "Arms" spraying water on all of the dishes. Then it puts the detergent on the plates also. To dry it heats all of the dishes until dry.
History of the dishwasher
IT was patent in 1850 by Joel Houghton as a hand-powered device. Josephine Cochran made an also hand powered washing machine that was like modern dishwashers. The only reason she made it was because her servants were chipping her fine China. Models installed with plumbing arrived in 1920s and electric dying was added in 1940.http://www.edinformatics.com/inventions_inventors/dishwasher.htm
Positive and negatives
Positives
- More dishes faster
- works for a very long time
- easy to fix
Negatives
- Uses more water
- not as clean