Lighthouse Illumination DVD

Lighthouse Illumination DVD

$15.00
Both the Technical Edition & Lighthearted Edition are included on this DVD. - Technical Edition: This video takes you on an animated tour through the history of lighthouse illumination. The Fresnel lens is explained in detail showing the formulas used in the early 1800's, along with animated descriptions of the workings of the Fresnel Lens. - Lighthearted Edition: This lighthearted look at the history of lighthouse illumination is great as an educational video for children of perfect in lighthouse museums alongside lens exhibits to educate and entertain tourists.