This video demonstrates how to build a welding rig. In the first part it is shown how to figure out if a battery is working or not. This video source is stuck with Hackett.
Channels: Physics (General) Fun and Smart
Tags: Stuck with Hackett Building a Welding Rig
Uploaded by: amir.nayak1 ( Send Message ) on 09-12-2012.
Duration: 2m 1s