Archived posting to the Leica Users Group, 2007/09/21

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Subject: [Leica] See, the Earth Really is Round...
From: r.s.taylor at comcast.net (Richard Taylor)
Date: Fri Sep 21 17:55:31 2007
References: <C6EA115F-DC14-4C3D-80F4-614218657E9B@comcast.net> <5555975F-4E35-4C09-8B6B-02034749B12E@mindspring.com>

Yeah, you know, you've jogged my memory.  There were those even well  
before Columbus, possibly the Chinese, but also the Portuguese, I  
think, who not only saw this effect and recognized what it meant, but  
had actually worked out an approximate diameter of the Earth.   
Columbus used this data as a basis for his travel time calculations  
only to find they were off, too short, by about 40%.

Regards,

Dick



On Sep 21, 2007, at 2:54 PM, Ric Carter wrote:

> Maybe they were more comfortable with round than we commonly  
> believe. After all, it's common (and erroneous) knowledge that  
> Columbus was one of the few who believed the world round.
>
> Looking at the picture made me realize that the dry brush filter in  
> PhotoShop may be a good way to simulate heat shimmer.
>
> Interesting photo
>
> ric
>
>
>
>
>
>
> On Sep 21, 2007, at 1:11 PM, Richard Taylor wrote:
>
>> Makes you wonder why any of the ancients thought it could possibly  
>> be flat.
>
>
> _______________________________________________
> Leica Users Group.
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In reply to: Message from r.s.taylor at comcast.net (Richard Taylor) ([Leica] See, the Earth Really is Round...)
Message from ricc at mindspring.com (Ric Carter) ([Leica] See, the Earth Really is Round...)