Electro-Mechanical Sunglasses Demo @Attoparsec

Uploaded February 2010 | Updated September 2026, 2 weeks ago

Higher quality demonstration video of the 2009 Electro-Mechanical Sunglasses. A flashlight is placed behind one of the lenses to show the changing opacity due to the rotating polarized sheets.

$Philosophical Reactions #4: Tides and Tirades A detailed look at the Royal Societys Philosophical Transactions journal for June 5, 1665. In this fractious episode: Scottish tides, telescopes, Auzout and Hooke go at it, more telescopes, the Goldilocks Zone, Auzout and Campani go at it, a book review and an update on rattlesnakes.$

EL Wire Interface Kit Demo: Cylon Chaser

Jumping on the bandwagon maybe a bit too late but you try finding titanium oxide during a pandemic