1. Happy Year End! A Rube Goldberg Device

2. Who is Rube Goldberg? Goldberg was a engineer who was made famous by his cartoons.Goldberg was a engineer who was made famous by his cartoons. Many of his cartoons depicted excessively complex devices that completed a simple task.Many of his cartoons depicted excessively complex devices that completed a simple task.

3. As you sit on pneumatic cushion (A), you force air through a tube (B) which starts ice boat (C), causing lighted cigar butt (D) to explode balloon (E). Dictator (F), hearing loud report, thinks he's been shot and falls over backward on bulb (G), snapping picture! Example

4. Our Device Our Rube Goldberg device uses several energy changes to fire off a confetti popper and celebrate the end of EF 151

5. Elastic Energy A rubber band is attached to a blade which gives the cutting device the energy needed to swing.

6. Potential to Kinetic Energy The cutting arm slices the string thus causing the ‘pendulum’ to fall MGH= ½M(V^2)

7. Conservation of Momentum The swinging pendulum then strikes the stationary mass at the bottom of its swing. This gives the second mass a forward velocity over the edge of the table.

8. Gravitational to Chemical The falling mass pulls the string causing the popper to fire and brings in the celebration.

9. Liquid to Human Energy The celebration causes the soft drinks to be consumed. This is then converted to internal body energy causing happiness in EF 151.

10. Costs Estimated costs include: Wood for Frame $3 Party Poppers $1.50 Utility Cutting Tool $1 Fishing Line $3 Paint Mixing Sticks for cutting arm $.50 Nails $2 2 water bottles $1 Drinks and cups $3 Total Cost $15 big ones

11. This Project was brought to you by: Aaron Tullos Ryan Connors Brad Singleton