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Discussion in 'Off Topic [BG]' started by Sneakypete, Jan 25, 2013.

  1. Sneakypete


    Jul 22, 2009
    A friend at the dayjob today claimed that when he was on holiday in Florida he could look out over the sea and see Cuba.That's about eighty miles isn't it? Wouldn't the curvature of the earth prevent that? Floridians please comment. I think the furthest distance I've ever seen was from Victoria on Vancouver Island to a snow-capped mountain range in the States and back home in the UK i've certainly looked over to France from the south coast and Ireland from the west but that's less than 30 miles in each case.
    So here's todays puzzler - what is the longest line of sight you have experienced? Where and when? Only when your feet were on the ground and with the naked eye please not from a balloon or while wing-walking on a 747.
  2. elgecko


    Apr 30, 2007
    Anasleim, CA
    Probably this view from the top of the lower 48s...but bump for an answer from flat land.

  3. MatticusMania

    MatticusMania LANA! HE REMEMBERS ME!

    Sep 10, 2008
    Pomona, SoCal
    I can see Russia from my house, and I live in Southern California.
  4. hover


    Oct 4, 2008
    Oh my God, it's a Mirage..I'm tellin y'all, it's Guevara!!!!
  5. tastybasslines

    tastybasslines Inactive

    May 9, 2010
    Los Angeles, CA
    You have a telescope?
  6. MatticusMania

    MatticusMania LANA! HE REMEMBERS ME!

    Sep 10, 2008
    Pomona, SoCal
    I do, but its broken. I looked at the moon with it once, and I saw two gentlemen sitting down for tea.
  7. I would tend to believe your friend. The circumference of the Earth is 40,075 KM (24901.451 Miles). 80 miles, in reference to 24901 is not even 1%, and would still basically be a straight line in terms of your eyesight.

    Maybe plan a trip to Florida so you can see it for yourself. Lots to do there... Bass Central, Disney World, & I believe a Harry Potter theme-park is also there.)
  8. Febs

    Febs Supporting Member

    May 7, 2007
    Philadelphia, PA
    According to Wikipedia, the forumula for calculating distance to the horizon is:

    D = 1.22 x sqrt(H)

    where D = distance in miles, and H is the height in feet of an observer.

    Cuba's highest elevation is 6,476 feet, so the distance from that point to the horizon is 98.18 miles.
  9. Hehe... When trying to establish a point, one should never begin with "According to wikipedia..." Just kidding. The formula looks fine.
  10. LarryO


    Apr 4, 2004
    That was not Cuba. That was a mobile sea going alien base being manned by ghosts, bigfoot and jesus
  11. Your analysis might not be too far off. According to this pic, Cuba is pretty close to the Bermuda Triangle...

  12. elgecko


    Apr 30, 2007
    Anasleim, CA
    The Bermuda Triangle is just a sub-formation of the Bermuda Shorts.

  13. bluesblaster


    Jan 2, 2008
    If you stand at the southern most point of the US in key west, which is basically where US1 ends, theres a big orange pylon there you cant miss it. Then standing at essentially sea level looking south on a clear day I doubt that you can see any part of cuba from there. I myself have done so on several occasions and seen nothing but sea and boats and the occassional windsurfer
  14. MatticusMania

    MatticusMania LANA! HE REMEMBERS ME!

    Sep 10, 2008
    Pomona, SoCal
    Yeah, but youre probably near-sighted.
  15. elgecko


    Apr 30, 2007
    Anasleim, CA
  16. bluesblaster


    Jan 2, 2008
    that was before I became nearsighted.

    It must have been an exceptionally clear day for someone to look out over 90 miles of open sea and sight another land mass.
  17. LiquidMidnight


    Dec 25, 2000
  18. I've heard of that before. :)
  19. pocketgroove


    Jun 28, 2010
    Wow, this thread is full of win. I'm not sure how far it is across the Detroit river from my part of Michigan to Canada, but I can see it. Pretty sure it's not far of a distance though. Hard to believe someone could see Cuba from Florida...
  20. bluesblaster


    Jan 2, 2008
    according to something called the pythagorean theory, if one is at sea level, which Key West pretty much is, and look out over a flat surface area like the ocean on a calm day, one can see 2.9 miles ( if there not nearsighted) so to see another 87 miles your gonna have to get up in the air a ways.
  21. Primary

    Primary TB Assistant

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