How a Combination Lock Works… it’s amazingly simple and clever!

This is a great video demonstrating how a combination lock works. I’ve never given it much thought but after watching this video I think it’s pretty ingenious.
www.SecurityTechSupport.com
in reference to: YouTube – 481.How combination locks work — BestofYouTube.com (view on Google Sidewiki)

Ohms Law Video

Check out the link at the bottom of this article.
Ever been confused about OHMS law? This video makes it extremely easy.
I= V/R
I= current
V=voltage
R=resistance
Leave a comment if you’ve got a question or additional information. Thanks!
in reference to: Make: Online : MAKE presents: Ohm’s Law (view on Google Sidewiki)