[NightHawkInLight] a.k.a. [Ben] recently built an awesome high power air cannon out of PVC pipe. PVC air cannons are great, and everyone should build one of these at some point in their life, but what ...

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Now that summer is in full swing, air conditioners are a necessity — and one YouTuber is showing the world how to build one that operates using solar energy for under $50. A video from YouTuber ...

These homemade air-conditioner designs take the mystery out of cold-air production. Some are complicated, some are cheap and simple, some run on alternative energy, and the last one is so out there ...

You could make crazy DIY Halloween decorations to scare the creeps out of trick or treaters in your neighborhood. You could dress up drones as flying ghosts or ghoulish goblins to strike fear into ...