build a boat

Everything in the built world has a story as well as a lot of ideas, thinking, experiences and background knowledge. Take for example, the Optimist sailboat. The design is simple enough that many people and groups have build them so kids everywhere can learn to sail in a small rugged boat and compete internationally. https://www.instructables.com/id/Optimist-sailboat-build/ These are the instructions for building an Opti complete with pictures and links to resources. Going through the instructions points out a number of engineering concepts and terminology as well as tools and skills. Computer-aided design – Wikipedia Computer-aided design (CAD) is the use of computers … Continue reading build a boat

balloon-powered boat

Don’t throw out that empty milk carton! Use it to make a toy boat that can move throught the water with your own homemade turbo engine. Air seeping out of a balloon can power a boat through water. Make this boat and watch it zoom. To make a balloon-powered boat you need: a balloon an empty milk carton a paperclip scissors Directions: Cut off one side of the milk carton to make your boat. Poke a hole at the stern of the boat, fairly close to the waterline. Put the balloon in the carton and push the nipple through the … Continue reading balloon-powered boat

capture wind power

To make a windmill you need: a 15 cm by 15 cm square piece of thin cardboard scissors a large fat plastic straw two straightened paperclips a nail Directions: Fold your thin piece of cardboard diagonally and then diagonally again. Cut down each fold towards the center, stopping about 2 cm from the center. Poke a hole in the center of the cardboard with the nail. Poke holes in the top right corner of each cut triangle as you turn the square in your hand. Each triangle should have just one hole. If you make a mistake, don’t worry. The … Continue reading capture wind power