Grade Level: 6th - 12th; Type: Mechanical Engineering
Design and build a working slide projector. The goals of this project are:
- To design a fully functional mechanical invention.
- To create an interesting visual display.
- How does a slide projector work?
- What is the latest slide projector technology?
- What are the uses for a slide projector?
Building a slide projector is easier than you might expect. Yet, many people will think you're a genius for building one. This project invites you to build a basic slide projector out of ordinary materials. You'll also learn how to make the slides.
- Computer with Internet access
- Color printer
- Digital camera
- Typical office/hobby/hardware/craft supplies (paper, poster board, glue, etc.).
- Two (or more) magnifying glasses
- Pliers, Phillips screwdriver and other household tools (see video link below)
All necessary materials can be found in or around your home, at local stores, or on ebay.
- Condensing Lens
- Focusing Lens
- Photographic Transparencies Experimental Procedure:
- Read overview of relevant topics (see bibliography below and terms listed above)
- Address all of the above terms and research questions.
- Search and print out interesting images relevant to your topic.
- Take photographs throughout the course of the experiment.
- Study the video in link #1 below.
- Follow the video, step-by-step, to build your own projector.
- Create several color transparency slides.
- Demonstrate your creation.
- Improve on this design in some way.
- Analyze your data.
- Interpret your findings in a detailed report.
- Include photos, diagrams, models and demonstrations in your science fair display.
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