Help! I need a project idea particularly more on electronics. We have a sponsor who is an engineer so it'll be no problem. We just need possible project ideas that's very unique and could solve some of the world's problems. We need to have our research proposal on Monday (June 18,2012) I browse through science buddies' project ideas similar to electronics but I can' t find the perfect research project.
Here are my classmates' research projects (so you can have an idea)
-360 degrees revolving sensor fan
-Low-cost Air Cooler
-HeliCam
-Shock Watch
And for science-related projects my classmates have:
-Biodiesel: Diesel of the Future
-Organic Paper Cups (Areca Leaves)
-Toxicity of water in different areas/locations
Please help me

Thanks for reading this.