I seem to recall a TV show about this subject. Yes, here it is: http://channel.nationalgeographic.com/going-deep-with-david-rees/interactives/getting-graphical

I seem to recall a TV show about this subject. Yes, here it is: http://channel.nationalgeographic.com/going-deep-with-david-rees/interactives/getting-graphically-deep-with-david-rees-how-to-dig-a-hole/ http://channel.nationalgeographic.com/going-deep-with-david-...