Re: Apple told to warn against charging phone in bath after man's electrocution

From	"James Wilkinson Sword" <imvalid@somewear.com>
Newsgroups	comp.os.linux.advocacy, comp.sys.mac.system, alt.comp.os.windows-10, alt.cellular-phone-tech
Subject	Re: Apple told to warn against charging phone in bath after man's electrocution
Date	2017-04-27 22:59 +0100
Organization	~
Message-ID	<op.yzdjdmcrjs98qf@red.lan> (permalink)
References	(15 earlier) <op.yyq745m8js98qf@red.lan> <150420171703161852%nospam@nospam.invalid> <ocu589$ade$1@dont-email.me> <ctyIA.381$Tn5.217@fx12.iad> <180420171709208428%nospam@nospam.invalid>

Cross-posted to 4 groups.

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On Tue, 18 Apr 2017 22:09:20 +0100, nospam <nospam@nospam.invalid> wrote:

> In article <ctyIA.381$Tn5.217@fx12.iad>, Wolf K <wolfmac@sympatico.ca>
> wrote:
>
>> >> it's physically impossible for a screen to display all the colours a
>> >> human can see, at least with today's technology. maybe at some point in
>> >> the future, but that day is not now.
>> >
>> > A human can see 10 million colours.
>> > An 8-bit RGB display can generate 16.77 million colours.
>> > I would think it can display more colours than a person can see, though you
>> > wouldn't see them. :)
>>
>> https://upload.wikimedia.org/wikipedia/commons/e/e9/16777216colors.png
>>
>> The question is badly posed. We can see all those colours (just look at
>> the above image), but do we perceive them? a) There a 16,000,000 pixels,
>> but we can't differentiate them all.
>
> what you see with that is only what your display can reproduce. there
> are far more colours than that.

Your eye can see more than 16 million colours?  Are you some form of alien?

>> a) The shades aren't different enough.
>> b) The brightness range isn't the same as a human can see.
>> c) When you blow up the image so you can the individual pixels, the
>> yellow background prevents you from seeing the colours correctly.
>>
>> I don't think the image is a good test of the difference between what a
>> human can see and what a screen can display. You'd need fairly large
>> colour patches to do that.
>
> it isn't.
>
>> >>> Funny how I've never observed a photo on my screen that's
>> >>> missing a colour.
>> >
>> >> statements like that means you don't understand colour theory.
>>
>> I think they mean that JWS can't imagine that he may be mistaken.
>
> that is true.

Monitors and TVs can show films etc which are realistic, indistinguishable from reality.

-- 
Last night I reached for my liquid Viagra and accidentally swigged from a bottle of Tippex.
I woke up this morning with a huge correction.

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Re: Apple told to warn against charging phone in bath after man's electrocution "James Wilkinson Sword" <imvalid@somewear.com> - 2017-04-27 22:59 +0100

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