Chances are you've got a digital camera of some sort in your pocket or bag, but you've never given too much thought to how it really works. Pictures go on computer, not film. Right, well, here's a simple and straightforward explanation of how that happens.
Bill Hammack, the Engineer Guy, explains the mechanics of how digital photography works with the charge-coupled device (CCD) sensors found on most point-and-shoot or mobile phone cameras, and why that method is both cheap and effective. There are actually some pretty interesting cost-savers and workarounds in place. And while higher-end digital cameras today have moved onto MOS or CMOS sensors, CCD is still in a huge number of the actual cameras in actual pockets out there. [YouTube]