Ligyrophobiac Torture
description
Transcript of Ligyrophobiac Torture
Ligyrophobiac Torture
EF 151 Team Project Section A2
Group Members
Brent NanneyJeff Pipkin
Tanaysha MappBenjamin Strength
Overview
• Device’s purpose: the device is designed for the simple task of popping a balloon.
• Materials used: plywood, dowel, string, marbles, a safety pin, mouse trap, popsicle sticks, hot glue, one large box, one Kleenex box, two bottle tops, scissors, a small hand saw, and a balloon.
• Total cost of purchased materials: $16.42
Overview cont.• The device consists of four distinct steps.1. A marble starts from rest and rolls down a ramp.2. The marble strikes another marble hanging from a
string, causing the marble to swing up and out like a pendulum. The marble strikes another marble at the top of a second ramp.
3. The second marble rolls down its ramp and down a funnel to trip a set mousetrap.
4. The trap springs, which in turn pops the balloon with its popsicle stick-extension armed with a safety pin.
Energy Conversions
• Step 1 (ramp 1): Ugravity KE
• Step 2 (pendulum): KE KE + Ugravity
• Step 3 (ramp 2 to mouse trap): KE + Ugravity KE
• Step 4 (mouse trap):Uelastic KE
Conclusions• The device turned out to be very successful, mostly
efficient, and a good idea.• It’s simple and completes the task in a reasonable
amount of time.• Each of us learned about rube-Goldberg devices, how to
work together as a team on a big project, and how energy can be converted in various everyday tasks through the use of ordinary objects.
• Our biggest hurdle was making minor changes and compromises with individual ideas, pertaining to how we would build our device and what materials to use.