We started sharing all our ideas of what to do for this. What we already know from previous lessons is that we need a coil of wire attached to the multimeter. We need something that goes round and round attached to a magnet to generate electricity. And we need wind. Science will do the rest.
So here are the questions we need to answer:
- What are the blades going to be made out of to get wind?
- What are the shape of the blades?
- What is the size of the blades?
- How many blades to we need?
- How would we get the blades to spin?
- Finally, the biggest question of all: Will this generate enough electricity for the multimeter to show it above the error range?
In class we drew diagrams of possible ways to do it. It was much like the diagrams in previous classes, but more detailed. As of the end of the class, the only certain thing we need is a fan so we can have wind. We requested that.
At home, I finished the question list and answered them. I also wrote three days worth of blog posts as I was away last week due to the conference.
- The blades are going to be made out of plastic boards. I have considered zinc plates, as they are sturdier and can probably get more wind, but they are too hard to cut.
- We decided to make the blades shaped like a normal fan. It would be triangular, with its tip attached to the center.
- We decided to cut out a plastic board in a circle. The size depends on the size of the plastic board we can buy as well, but as of now we want the plastic board to be 2ft in diameter, not including the center. That means 1ft from tip to base. A picture will be uploaded next post or so.
- As of now we plan to have 4 blades as it is the easiest to cut.
- We can get the blades to spin by punching a hole in the middle of the cardboard with a nail, and attaching that nail to a stick.
- Hopefully, but we have to try first.
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