mechanical paddle boat
by Kaela Foran
1. mechanisms
1.1. rack and pinion
1.2. worm and worm wheel
1.3. pulley system
1.4. compound gears
2. electronics
2.1. circuit board
2.2. SPST switch
2.3. transistor
2.4. battery pack
2.5. DPDT switch
2.6. resistor
2.7. LDR
3. materials
3.1. plastic
3.1.1. white
3.1.2. turqouise
3.1.3. black
3.2. cardboard
4. equipment
4.1. files
4.1.1. smooth
4.1.2. rough
4.1.3. needle
4.2. saws
4.2.1. copingsaw
4.2.2. hacksaw