The Way Things Work

Curiosity has met its match here.  It might be intended for older audiences, but that hasn't stopped my lads and their dad from enjoying David Macaulay's The New Way Things Work and the videos that are based upon the original The Way Things Work.  Sensors, heat, pressure, friction, electricity, combustion, musical instruments, the color spectrum... we've been skipping around, reading about whatever looks interesting at that given moment.  The videos are well-produced, interesting, and brief (15 minutes or so) but thorough enough to adequately introduce the concepts behind these intriguing mysteries to our little sponges.  I do hope I don't find one or both of them taking the toaster apart after having read how it works in this tome, though I wouldn't put it past them.