From: Whisky-dave <whisky.dave@gmail.com>
Subject: Re: People Keep Walking Into Glass at Apple Park
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Date: Wed, 21 Feb 2018 03:09:30 -0800 (PST)
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Subject: Re: People Keep Walking Into Glass at Apple Park
From: Whisky-dave <whisky.dave@gmail.com>
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On Tuesday, 20 February 2018 17:43:51 UTC, nospam  wrote:
> In article<1a18a948-6a7f-465d-930d-1bb8f0d6bceb@googlegroups.com>,
> RichA<rander3128@gmail.com> wrote:
> 
> > "Quite hard to see?"  Maybe if you're stoned all the time.  Glass reflects 4%
> > at each surface (perpendicular rays) and a lot more at glancing angles. 
> > Hard not to actually see it.
> 
> nowhere near 4%.
> 
> if that were the case, a camera lens with multiple surfaces would be
> nearly opaque.

Maybe that's why people don't walk into camera lenes :-D