How everyday things work

Mechanical-pencil.com reminds me of the Way Things Work book I loved as a kid, but with 3D animations that make it even more illuminating. Mechanical engineer and artist Bryan Macomber tears down familiar objects — a Pilot G2 retractable pen, a Zippo lighter, a Pez dispenser, a BIC mechanical pencil — and walks you through how each one works, part by part. Watching the push-push mechanism inside a clicky pen click into place is genuinely satisfying. I hope Bryan keeps adding to this series. — MF