Yesterday I was using a riding a lawnmower and the bolt that held the float bowl fell off in deep grass. I looked for about 15 minutes when I seen a flash of lightning and I figured I better give up searching and start pushing this thing back to the house. This experience made me wish I had a huge magnet :) Anyway, I want to go through with this just for the sake of entertainment and practice with electromagnetism. I want to build an electromagnet that can lift bolts and screws from the ground without bending over. My main priorities are: Device Works as Planned Light Weight Under $50 (Scavenging for used materials is a choice) I'll post my current idea once I get some ideas, that way I can get some much more different(most likely much more efficient) design ideas. Thank you :) P.S. I love the idea of science and engineering, but I don't have a proper education in either. One thing I'm wondering is what the proper way to measure magnetic attraction? I'm assuming there is a huge oversight in my idea, feel free to point out if there is an issue even if you're forced to call me stupid.