video://www.metacafe.com/watch/947948/fun_with_a_lie_detector/
Here’s a funny cheap lie detector you can make. I don’t know if it really works since there’s no circuit diagrams but you can find lots of lie detector circuit diagrams on the internet like this one I found in about 5 seconds:
Yes, these lie detectors probably won’t work on cats, maybe try dogs. 🙂
