The Ingenious Design of the Aluminum Beverage Can 易拉罐的天才设计

Bill Hammack of Engineer Guy explains the engineering behind the aluminum beverage can: why it is cylindrical, how it is manufactured, why it narrows at the top, the double seam, and how the pull tab works.

Why HN likes it: It is a go-to recommendation whenever cans, good design or mass-produced objects come up, and many also recommend the whole channel.

“Whenever it’s about cans I can only recommend this video from the engineer guy”