The Ingenious Design of the Aluminum Beverage Can

Bill details the engineering choices underlying the design of a beverage can he explains why it is cylindrical, outlines the manufacturing steps needed to created the can, notes why the can narrows near it lid, show close ups of the double-seam that hold the lid on, and details the complex operation of the tab that opens the can.

My inner geek rejoices to see how much engineering went into something we take for granted.

Automatic Bullseye MOVING Dartboard

Former NASA engineer Mark Roper:

I fulfilled a 3 year long dream to create a dartboard where you get a bullseye every time thanks to some engineering. Basically, you throw a dart and then a Vicon motion capture system tracks the dart in the air. We use those x,y,z positions in matlab to predict where the dart will land using some regression analysis. Once we know where it will land, we move the board to the right spot using 6 stepper motors that attach to the back of the board using fishing line. All of this happens in 400ms or so. Then we took it to a bar to see what people would think of it (SPOILER ALERT: they liked it)

Nice!