- Light and Heat: Giant Fresnel -The Brothers Whitney

- Light and Heat: Giant Fresnel -The Brothers Whitney: "Now that you’re frantically searching craigslist and ebay for big Fresnel lenses, I’m going to let you in on the secret. Rear projection TVs all have lenses equal in size to their display. It’s part of the core design. These are the same TVs that people are throwing away at this very moment, all over the US. The Free section of Craigslist in LA sees at least three of these bad boys a week, often more. Tax rebates, the Superbowl, and Christmas all cause peaks in the dump rate."