Search results
Results from the WOW.Com Content Network
The original main optic consisted of a rotating octagonal array of eight large (first-order) Fresnel lenses, topped by seven tiers of concave mirrors. [5] [6] This was the first time Trinity House had installed a dioptric (i.e. lens-based) optic in one of their lighthouses; [7] manufactured by Cookson & Co of Newcastle-upon-Tyne, the design was based on the improved dioptric system developed ...
The original 1855 lantern room was used on the new 1888 tower. Eventually trees in the park obstructed the light from the view of ships, so in 1912 the tower was dismantled and a riveted steel addition was erected and the original 1888 section was placed on top raising its height to 74 feet (23 m) [ 3 ] and light focal plane to 154 feet (47 m).
An open deck circles the structure at the top of the brick section, where it transitions to the smaller iron lantern house, and a narrow third deck encircles the lantern chamber. The interior was historically divided into living and dining quarters (housing seven crew members), and office and storage space.
Dave and Jenny Marrs have the magic touch when it comes to home renovations, and, thanks to their series Fixer to Fabulous, they share their talents with fans on HGTV.If you've ever dreamed of ...
It even comes with its own doggy dream house built to match the big house. Add the 2016 GMC Acadia Denali and the 2016 Bryant Sperenza boat and the $250,000 cash prize, and it's a pretty ...
The gallery was surrounded with an iron safety railing and capped with a prefabricated octagonal cast iron lantern. Seated atop a cast iron pedestal within the lantern, the light's sparkling new, fixed white sixth-order Fresnel lens sat at a focal plane of 37 feet (11 m), sending its light 8 + 1 ⁄ 2 nautical miles (15.7 km; 9.8 mi) out into ...
For premium support please call: 800-290-4726 more ways to reach us
Spectacle Reef Light is a lighthouse 11 miles (18 km) east of the Straits of Mackinac and is located at the northern end of Lake Huron, Michigan. [8] It was designed and built by Colonel Orlando Metcalfe Poe and Major Godfrey Weitzel, [9] and was the most expensive lighthouse ever built on the Great Lakes.