To demonstrate how computers work, [Alex Gorischek] has made a physical example of how binary logic gates work using pulleys and weights. For anyone who doesn’t know much about logic gates (Wikipedia) ...

Ask any bike expert and they’ll tell you that spending more than $1,000 on a bike without a chain is madness. Though they certainly aren’t wrong, these same specialists will likely eat their words ...

We still remember the old days when finding a pulley system for your Chevy involved digging around in scrapyards for just the right combination. We would then clean up the scavenged parts and more ...