Stop for a minute and try to imagine your world without electrical power and electronic gadgets. No convenient appliances in the kitchen, no electric lights. No computers, MP3 players, television or video games. Your life would be completely different, wouldn't it? Electricity and electronics are so central to modern life that, paradoxically, they're easy to overlook. If you've ever wondered how electricity is generated, or how motors or electromagnets work, if you'd like to build your own radio, or some other electronic device, then this could be the place to find your next science fair project idea. In the brackets are the difficulty levels which would guide you from where to start.
- Crank up the music (1)
- Pencil resistors(2)
- Induction:How many coils do i need?(3)
- Rock on ! Recording Digital Data with Magnets(4)
- Building an electric motor(5)
- How Does LED Brightness Vary with Current?(6)
- Testing a Parabolic Reflector with Light from an LED(7)
- Make Your Own Low-Power AM Radio Transmitter(8)
- Recording on a Wire(9)
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