Simple Kids Crafts is a video blog dedicated to reviving the old art of handicrafts for people of all ages. How do oil spills affect aquatic plants? A Miniature Solar Panel Fire Water Balloon Make Clouds in a Bottle Secret Messages Make a Rocket Make a Hovercraft Make an Anemometer Make a Sundial Make a Radio Make an Electroscope Make a Stethoscope Make a Telescope Make a Periscope Make a Camera Bending a stream of water with a comb Lighting a bulb without electricity Simple Motor Cotton Ball Rocks? Salt-Absorbing Art and Science Color Changing Glue Art Baking Soda Clay Oil Sun Catcher Grow a Pineapple Plant! Bead Bowls Wow, what an Air-Gun Funny Diver ! Water boils without fire Ice with Boiling Water Water that boils instantly Water boils in a Paper Pot Soap-driven Boat Pulse Moves Pin Pretty Garden—without Plants Picture made by Fire Magic Pictures Dancing Doll Smoke Goes Down The Dancing Coupl The Umbrella Dance Magic Butterfly Colorful
Objectives/Goals The objective is to determine what number and angle of windmill blades can produce the most energy. Methods/Materials 1. I constructed the windmill stand and blades with pine and balsa wood. 2. I used an erector set motor and reversed it into a generator. 3. I connected the turning part of the motor to the windmill shaft, and then connected the motor to a volt meter to measure the energy output. 4. I used a small house fan as a wind source to maintain a constant wind speed. 5. First I tested a windmill with 2 blades at angles of 0, 15, 30, 45, 60, 75 and 90 degrees. 6. With each combination I took volt measurements from the volt meter. Then I did the same with 4 and 8 blades. Results The 2 bladed windmill produced the least amount of energy, the 4 bladed windmill was in the middle in energy output, and 8 blades produced the most. The 15 degree angled blade was best. Conclusions/Discussion The 8 bladed windmill at a 15 degree angl