Class Note

Woking with Jasmine and Michal

We started working on the kinetic assignment with two main ideas:

1. To try to build a motor driven by using magnets.
2. To use a weight that drops slowly and drives the system to produce energy. The thought that motivated us was to utilize day to day human activities (and particularly the recommendation to get up from the chair once an hour to adjust the weight to the starting page.)

We began to examine the second idea - the possibility of generating energy with the help of a weight that pulls slowly and moves string and a large wheel. The large wheel will drive a twice smaller wheel that is connected to another string (parallel to it) and then it will provide the energy for the light bulb.

When the weight reaches the bottom, and stops producing movement - the spectator must get up and adjust the weight back up, in order to allow the lamp to shine for another duration.

We created a small prototype using cardboards.

Since we already have a led light that we are considering to use, it’s better to start to calculate the voltage that we need to produce. And also which (how much?) torque we need for the motor? And also what kind of weight do we need to get dood light?

We thought of giving the user the ability to control the amount of weight and "schedule" different timings to set up the light again.

weight candidates:

• Magnets
• water
• objects that are relating to measure of time — For example, if the amount of time passed is 3 minutes, pile up the LEDs; if 5 minutes, pile up the cell phone.