We have recently learned about Rube Goldberg. He was an inventor. He made these crazy, and very difficult contraptions for doing something simple. This is one of his examples...

Rube Goldberg (1883-1970) was a Pulitzer Prize winning cartoonist, sculptor and author.
Reuben Lucius Goldberg (Rube Goldberg) was born in San Francisco on July 4, 1883.

Now we are also building a contraption just like and I am looking forward to completing it.