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9 Oct 2024 07:02:24 EDT (-0400)
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From: Darren New
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 12:09:27
Message: <4a9fea37@news.povray.org>
Jim Henderson wrote:
> Well, maybe not now, but when I was in college, PS101 was colloquially 
> referred to as "Bonehead Chemistry". ;-)

Yes. It should be noted (for those outside the USA's idioms) that many 101 
courses were targeted at people who were not planning to take another course 
in the subject. A literature major might take Computers 101, while a 
computer science major might take Sociology 101.

Hence, if someone says "Geez, you should know that, that's 100-level stuff" 
that's why.  (Note that "100-level" means all the 101, 102, etc courses.)

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Darren New
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 12:10:07
Message: <4a9fea5f$1@news.povray.org>
Fredrik Eriksson wrote:
> It works perfectly if the predator does not eat the prey himself, but 
> instead feeds his offspring with it.

<laugh> For some definition of the word "perfectly" I suppose. :-)

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Jim Henderson
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 12:17:42
Message: <4a9fec26$1@news.povray.org>
On Thu, 03 Sep 2009 09:09:25 -0700, Darren New wrote:

> A literature major might take Computers 101

This is a good point - the CS101 class where I went to school was 
basically a class on using an office suite ("Enable" was what the 
software was called - wonder how many people here have heard of it and/or 
used it) and software like Harvard Graphics to build presentations.

Jim


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From: clipka
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 13:31:47
Message: <4a9ffd83$1@news.povray.org>
Darren New schrieb:
> scott wrote:
>> Anyway, take 200 metres of this stuff (which I make weighs 10 tons):
>> http://www.csunitec.com/saws/new-river-band-saw.html
> 
> Cool. It doesn't really look that big from the ground, does it?

Those are cables for underground power transmission. They need an awful 
lot of insulation I bet. So overhead lines are likely to be a good deal 
thinner. The German Wikipedia mentions a typical cross-section of 60 
mm^2 of steel surrounded by 257 mm^2 of aluminum, so the diameter should 
be close to 20 mm.


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From: Warp
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 14:06:38
Message: <4aa005ae@news.povray.org>
Fredrik Eriksson <fe79}--at--{yahoo}--dot--{com> wrote:
> On Thu, 03 Sep 2009 17:55:43 +0200, Darren New <dne### [at] sanrrcom> wrote:
> > Warp wrote:
> >>    AFAIK the bright colors work as a warning signal. Predators learn to
> >> distinguish the poisonous prey by their color.
> >
> > This clearly works poorly if the prey is so poisonous they kill the  
> > predator with one meal.

> It works perfectly if the predator does not eat the prey himself, but  
> instead feeds his offspring with it.

  Note that not all poisons are deadly.

-- 
                                                          - Warp


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From: Reactor
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 14:40:00
Message: <web.4aa00cd139795a72a7b77dd90@news.povray.org>
Darren New <dne### [at] sanrrcom> wrote:

> Oh, there's the snake. GIYF.  Can you tell which is poisonous and which
> isn't? Notice the different order of the stripes.
>

"Red on yellow, kills a fellow..." I forget the rest, but remembering the first
part is enough, really.


-Reactor


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From: Darren New
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 14:50:53
Message: <4aa0100d$1@news.povray.org>
Reactor wrote:
> "Red on yellow, kills a fellow..." I forget the rest, but remembering the first
> part is enough, really.

The rest goes "Red on Black will kill Jack."

Me, I'll stay away from both of em. ;-)

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Jim Henderson
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 15:21:03
Message: <4aa0171f$1@news.povray.org>
On Thu, 03 Sep 2009 11:50:51 -0700, Darren New wrote:

> Reactor wrote:
>> "Red on yellow, kills a fellow..." I forget the rest, but remembering
>> the first part is enough, really.
> 
> The rest goes "Red on Black will kill Jack."
> 
> Me, I'll stay away from both of em. ;-)

But your name isn't Jack, at least I don't think it is. ;-)

Jim


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From: Orchid XP v8
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 15:56:23
Message: <4aa01f67$1@news.povray.org>
>> As *I* remember, Pascal arrays start at whatever index you tell them to
>> start at. (E.g, you can make the first index be 17 if you want...)
>>
>> VAR stuff : ARRAY [17..21] OF INT;
> 
> I was thinking positions for a string.  In Pascal, using the string 
> "abcdef", position 1 is "a".  In C, it's position 0.

Probably.

IIRC, in Turbo Pascal, position 0 is the length. (And since it's a 
single byte, no strings longer than 255 characters...)

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*


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From: Jim Henderson
Subject: Re: Mysteries of the universe
Date: 3 Sep 2009 16:01:30
Message: <4aa0209a$1@news.povray.org>
On Thu, 03 Sep 2009 20:56:30 +0100, Orchid XP v8 wrote:

>>> As *I* remember, Pascal arrays start at whatever index you tell them
>>> to start at. (E.g, you can make the first index be 17 if you want...)
>>>
>>> VAR stuff : ARRAY [17..21] OF INT;
>> 
>> I was thinking positions for a string.  In Pascal, using the string
>> "abcdef", position 1 is "a".  In C, it's position 0.
> 
> Probably.
> 
> IIRC, in Turbo Pascal, position 0 is the length. (And since it's a
> single byte, no strings longer than 255 characters...)

Yep, Turbo Pascal stored the length rather than using the C method of 
null-terminating the string.

Jim


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