pbl 3 solar, led, hybrid inventions
TRANSCRIPT
Solar panels
• How was it invented?A French physicist invented it as he was experimenting, he saw a voltage develop when sunlight fell on the electrode
• How does it work?Uses solar energy to generate electricity
Solar Panels
• How does it help the environment?Rather than causing air pollution by burning coal, it uses renewable energy
LED lights• How is it used?
Used for flashlights, signs, Christmas lights, lamps
• How does it help save energy?it uses the same lower energy while brightening up the room