Lighthouses Of Michigan
lighthouses of michigan
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my son is doing a report on a lighthouse in michigan and he needs to know "what is the order of the optic?"
where or how do we find that info? the lighthouse he is researching is the peche island lighthouse in marine city michigan...also, the next question is "how large does this make the optic?" again, how/where do we find this info...i don't even know what an optic is!!! (embarrassing, i know, but true!!)
I believe The 6th Fresnel lens is the order of the optic. An optic referres to the lens. Not sure how large it would be. The couple who wrote The guide to Michigan Lighthouses live in the area and would be able to answer your question but I can't post names or numbers. Wish I could help more.
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A Traveler's Guide to 116 Michigan Lighthouses List Price: $17.95 Sale Price: $11.00  |
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Lighthouses of Lake Michigan Sale Price: $1.99 |
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Ladies of the Lights: Michigan Women in the U.S. Lighthouse Service List Price: $22.95 Sale Price: $13.43 |
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"A great read about some great ladies, Pat Majher's Ladies of the Lights pays long overdue homage to an overlooked part of Great Lakes maritime history in which a select group of stalwart women beat the odds to succeed in a field historically reserved for men... |
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Set of Four Great Lakes Lighthouses Occasions Drink Coasters - Style V2089 List Price: $12.99 Sale Price: $16.99 |
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Description:Set of 4 Absorbent CoastersCork-backed to protect furnitureLarge surface area (4.5 inches in diameter) to catch more dripsPrinted and packaged in the USA (no decals) |
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Wallmonkeys Peel and Stick Wall Decals - Michigan City Lighthouse at Sunset - 72"W x 48"H Removable Graphic Sale Price: $109.99 |
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WallMonkeys wall graphics are printed on the highest quality re-positionable, self-adhesive fabric paper. Each order is printed in-house and on-demand. WallMonkeys uses premium materials & state-of-the-art production technologies... |
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Big Red Lighthouse Michigan Travel Dark T-Shirt by CafePress List Price: $29.50 Sale Price: $29.50 |
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For all those who love lighthouses. This beautiful lighthouse called Big Red is in Holland, Michigan. This lighthouse photo/graphic tee is a perfect gift for any lighthouse lover. Travel Tee, TShirt, Shirt... |
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Spoontiques Lighthouse - Old Michigan City, IN Sale Price: $17.99 |
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Lighthouse Nights List Price: $0.99 |
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Jules and Trevor take advantage of potential suicide victims by encouraging them and profiting off their deaths. When Jules falls in love with their seventh target, she's forced to make a series of life-or-death decisions and a single, impossible change... |
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Lighthouses of Lake Michigan List Price: $29.95 Sale Price: $24.99 |
