Solve, create, share and talk about jigsaw puzzles

Fourth Order Fresnel Lens

Bookmarked Bookmark Solve this jigsaw puzzle later
ShareShare with your friends
ReportReport as inappropriate
108
21
Solve puzzle
108 pieces
21 solves
Solve puzzle

Thanks for sharing. Here is your html-code:

Why are you reporting this puzzle?

In the Great Lakes Shipwreck Museum at Whitefish Point, Michigan. Fourth Order lenses are most common on the Great Lakes, though the lighthouse at Whitefish Point uses a Third Order Fresnel Lens (smaller numbers = more power). A still photo can't show the action of light on the prisms properly!

For info on Fresnel lenses, see http://www.michiganlights.com/fresnel.htm.
Why this advertisement?

Leaderboard

  1. Bemusement13:06
  2. vbrewer6414:05
  3. antonia2517:44
  4. magoose21:16
  5. AvisJean23:49
  6. aurora6050525:35
  7. getjigidi26:48
  8. 2jugidigy33:15
  9. eagleribbon37:24
  10. Jiggeri42:51

Comments

Please sign in to comment. Don't have a profile? Join now! Joining is absolutely free and no personal information is required.

You already found the puzzle with the lighthouse this goes with. If you ever get to the Upper Peninsula of Michigan, you'll enjoy the whole lighthouse complex at Whitefish Point. Although the lighthouse is automated now, they've kept up the old buildings (crew quarters, keeper's house, coast guard station), all staffed by knowledgeable guides. In pre-Covid days, a small party could rent a room in the crew quarter's for a night.

And, yes, this doesn't make for an easy puzzle! The lens is so beautiful when you can see light playing with it, though, that I couldn't resist posting it.

arsenault

Tough one but fun I do all lighthouses

You would love a special program at Whitefish Point--ordinarily, you can reserve one of five rooms in the restored crew quarters for an overnight stay. During the pandemic, this is not available, but they're hoping to reopen it in 2021. https://www.shipwreckmuseum.com/crews-quarters-overnight-program/

I love everything about lighthouses. Thank-you.

Why this advertisement?
  • How many accounts can a person have on Jigidi?

    1 account; or 2 if you have a creative need for a second account - but this requires transparency in your profile descriptions that you hold both accounts. To trust each other and interact with our shoulders down and hearts soft, we all must know with whom we are communicating.

    Read more about what to do if you have more than one account on Jigidi.