The Collegiate Student Hydration Device

1. The Collegiate Student Hydration Device By:Alexander Genaille, William B. Nichols, Kari Osborne, and William Calain Schuman.

2. Purpose • The purpose of the CSHD to dispense refreshing liquid into a funnel to allow for rapid consumption.

3. Project Overview • Step 1: • A golf ball is released upon the ramp. • Gravity acts upon it, and the golf ball rolls into a block with a mounted razor blade.

4. Project Overview • Step 2 • The razor blade then cuts through a string, tied to the bottom of a platform.

5. Project Overview • Step 3 • The platform, which is holding the beverage, tilts downward, dispensing the beverage into the funnel.

6. Energy Conversions and Forces • Golf ball • The gravitational potential energy of the golf ball is changed into kinetic energy when the ball is released. • mgh = 1/2 mv2

7. Energy Conversions and Forces • Blade • The kinetic energy from the golf ball is transferred to the block holding the razor blade. • m1v1 = m(1+2)v(1+2)’ + Eloss • Energy loss is due to friction on the block. • The collision is assumed to be perfectly inelastic.

8. Energy Conversions and Forces • Tension and Gravity on the beverage. • T = mg • The tension in the string is equal to the mass of the can times the force of gravity. The pivot hinge is located exactly in the center of the system, in between the tension and mass.

9. Velocity of the Beverage • The beverage is then dispensed into the funnel, providing refreshment to whatever student chooses to indulge. The velocity of the beverage is equal to: • mgh beverage=½mv2 beverage

10. Efficiency • The CSHD is fun, but inefficient. It would require much less energy for a person to lift the beverage to their mouth and take their time drinking it.

11. Conclusion • The CSHD is a good conversation starter, party object, and performs the said task, but is ultimately inefficient. Mmmm mmmm……