3.  He was hired in San Francisco as an engineer.  He was an American cartoonist who received the Pulitzer Prize.  He Drew cartoons for 5 news papers.

4.  A simple machine is a mechanical device that changes the direction or magnitude of a force. http://en.wikipedia.org/wiki/Sim ple_machine

5.  A rube Goldberger contraption is a bunch of simple machines put together to make complex machine.  Most of the time his machines are very complex.  His machine complete a simple task with a complicated machine.

8.  He was a cartoonist and a sculptor  He drew cartoons for the San Francisco News Paper  There is an award names after him called the Reuben Award  http://www.youtube.co m/watch?v=VhWK3xJz L5E&feature=related http://www.youtube.co m/watch?v=VhWK3xJz L5E&feature=related