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From: Darren New
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 9 Mar 2011 21:54:20
Message: <4d783d5c$1@news.povray.org>
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Mike Raiford wrote:
> Which is why a small black hole would be short lived.
No it isn't.
> But, then, it does
> have an event horizon, and nothing can escape a black hole. So, wouldn't
> it remain a black hole after being compacted?
How well do you understand quantum vacuum fluctuations?
> Right, what was I thinking. Only the frequency of the light changes. The
> speed doesn't change.
Yes.
> Heck no. Just a basic home finance program. Cost about US$50.
Quicken. Or QuickBooks. Depending onw hether you need single or double-entry
bookkeeping.
--
Darren New, San Diego CA, USA (PST)
"How did he die?" "He got shot in the hand."
"That was fatal?"
"He was holding a live grenade at the time."
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From: Mike Raiford
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 9 Mar 2011 21:54:53
Message: <4d783d7d$1@news.povray.org>
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On 3/9/2011 3:07 AM, Invisible wrote:
>>> So, what, you literally sit down and check all of the thousands of
>>> transactions you make, one at a time, to make sure every single one
>>> matches the printed recipt?
>>
>> Yes, I thought everyone does that.
>
> Well, this is the first time I've heard of it. I don't think even my
> sister does this - and she's a qualified accountant!
>
> (Heck, my mum doesn't even bother opening her bank statements when they
> arrive. Then again, I'm pretty sure that's unique to her. Strange
> person...)
>
>> So realistically, no, I don't check every single item. But if I'm out
>> shopping, I have a vague idea of how much the items I've bought come to,
>> and if the receipt shows a different value than I expect, then I do get
>> an adjustment.
>
> Yeah, sure. I get that. But usually by the time you get the receipt,
> you've already paid. So I'm still not sure what use the actual piece of
> paper is. (Unless you're really going to check that the number on your
> bank statement actually matches the number on the receipt and the card
> reader...)
>
Well, you check the sum against the bank statement. If they don't match
then, you start going through all the line items to find the mistake. It
can happen occasionally, and can be tedious, but worth it if it means
not overdrawing your account.
>> I've also had occasions where a clerk has double-entered an item and not
>> realized it, and I use the receipt to get that corrected as well.
>
> That doesn't happen very often. (Fortunately!) About the only time I've
> seen this is in a busy restaurant. (This also just happens to be about
> the only place where you get an itemised list *before* you hand over the
> money.)
>
>> It's called "money management". If I don't have at least an awareness of
>> how much I'm spending, I might end up overdrawn, and that incurs more
>> fees. People make mistakes, and a receipt is a good tool for catching
>> those mistakes.
>
> Oh hell, I have literally *no idea* how much money is in my account. My
> technique is to just avoid spending money as much as possible.
I'm at a loss for words ...
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From: Mike Raiford
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 9 Mar 2011 21:57:15
Message: <4d783e0b$1@news.povray.org>
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On 3/9/2011 8:54 PM, Darren New wrote:
> Mike Raiford wrote:
>> Which is why a small black hole would be short lived.
>
> No it isn't.
>
>> But, then, it does have an event horizon, and nothing can escape a
>> black hole. So, wouldn't it remain a black hole after being compacted?
>
> How well do you understand quantum vacuum fluctuations?
>
About as well as I understand how thoughts form. :)
>> Right, what was I thinking. Only the frequency of the light changes.
>> The speed doesn't change.
>
> Yes.
>
>> Heck no. Just a basic home finance program. Cost about US$50.
>
> Quicken. Or QuickBooks. Depending onw hether you need single or
> double-entry bookkeeping.
>
Yeah, quicken. Though intuit pisses me off.
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From: Invisible
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 10 Mar 2011 04:19:00
Message: <4d789784$1@news.povray.org>
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>> http://en.wikipedia.org/wiki/Cherenkov_radiation
>>
>> It's what gives the weird blue light coming out of nuclear reactors
>> underwater - particles from the reactor hitting the water at speeds
>> faster than the speed of light through water.
>
> On a completely unrelated note, I know someone who has witnessed this
> with his own eyes. Dang cool, if you ask me.
Yeah. Right until your eyes melt and you grow a third arm...
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From: Invisible
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 10 Mar 2011 04:24:48
Message: <4d7898e0$1@news.povray.org>
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On 10/03/2011 02:37 AM, Mike Raiford wrote:
> On 3/8/2011 12:29 PM, Orchid XP v8 wrote:
>>>> It is undeniably infinite. But is it countable?
>>>
>>> Tell me when you're done counting from 0 to 1 in infinitesimally small
>>> intervals.
>>
>> "Countable" doesn't mean that you can actually count them in finite
>> time. It means that you can assign a unique positive integer to each one.
>>
>> Now, between 0 and 1 in the rationals, there are a countable infinity of
>> values. But in the reals (which inclused irrational numbers), there is
>> an uncountably infinite supply of values.
>>
>> So I suppose "how many points are there on the unit square" comes down
>> to "are the coordinates rational?"
>>
>
> Hmm... I don't have a strong enough grasp of number theory, apparently.
Set theory. Number theory is where you prove that irrational numbers
exist. Set theory is where you prove that the set of irrational numbers
has a strictly greater cardinal number than the set of rational numbers.
And yes, transfinite cardinal numbers are freaking weird...
>>>> Sure. Regular Sudoku is 9x9. But you can make 'em other sizes (with
>>>> other numbers of unique symbols).
>>>
>>> Right, but, even if it were 25x25 it still has a specific layout.
>>
>> You can make them rectangular, you know. ;-)
>
> This would work? How?
http://en.wikipedia.org/wiki/Sudoku#Variants
>> Hmm, I suppose...
>>
> Glad you see things my way for a change ;)
Hey, I'm not *that* unreasonable. :-P
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From: Mike Raiford
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 10 Mar 2011 06:31:53
Message: <4d78b6a9$1@news.povray.org>
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On 3/10/2011 3:19 AM, Invisible wrote:
>>> http://en.wikipedia.org/wiki/Cherenkov_radiation
>>>
>>> It's what gives the weird blue light coming out of nuclear reactors
>>> underwater - particles from the reactor hitting the water at speeds
>>> faster than the speed of light through water.
>>
>> On a completely unrelated note, I know someone who has witnessed this
>> with his own eyes. Dang cool, if you ask me.
>
> Yeah. Right until your eyes melt and you grow a third arm...
He seems rather normal to me, and quite bright. He even has a kid. She's
normal (well-- normal for a 3 year old) and doesn't seem to have any
extra limbs or digits ;) and from what he says, she's pretty smart, too.
I hazard she may be a bit smarter than my son in some areas.
Besides, a few stray neutrons never hurt anyone.... right? ;)
Oh, yeah, and there's that big thick plate of leaded glass between him
and the reactor that should help.
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From: Mike Raiford
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 10 Mar 2011 06:39:32
Message: <4d78b874$1@news.povray.org>
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On 3/10/2011 3:24 AM, Invisible wrote:
> On 10/03/2011 02:37 AM, Mike Raiford wrote:
>> On 3/8/2011 12:29 PM, Orchid XP v8 wrote:
>>>>> It is undeniably infinite. But is it countable?
>>>>
>>>> Tell me when you're done counting from 0 to 1 in infinitesimally small
>>>> intervals.
>>>
>>> "Countable" doesn't mean that you can actually count them in finite
>>> time. It means that you can assign a unique positive integer to each
>>> one.
>>>
>>> Now, between 0 and 1 in the rationals, there are a countable infinity of
>>> values. But in the reals (which inclused irrational numbers), there is
>>> an uncountably infinite supply of values.
>>>
>>> So I suppose "how many points are there on the unit square" comes down
>>> to "are the coordinates rational?"
>>>
>>
>> Hmm... I don't have a strong enough grasp of number theory, apparently.
>
> Set theory. Number theory is where you prove that irrational numbers
> exist. Set theory is where you prove that the set of irrational numbers
> has a strictly greater cardinal number than the set of rational numbers.
> And yes, transfinite cardinal numbers are freaking weird...
>
Ah. err... Got ya.
>>>>> Sure. Regular Sudoku is 9x9. But you can make 'em other sizes (with
>>>>> other numbers of unique symbols).
>>>>
>>>> Right, but, even if it were 25x25 it still has a specific layout.
>>>
>>> You can make them rectangular, you know. ;-)
>>
>> This would work? How?
>
> http://en.wikipedia.org/wiki/Sudoku#Variants
>
OK, aside from nonomino they all follow a pattern of n rows x n columns
in blocks of n. nonomino changes this a bit by making the blocks
arbitrary in shape.
> Hey, I'm not *that* unreasonable. :-P
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From: Invisible
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 10 Mar 2011 06:44:38
Message: <4d78b9a6$1@news.povray.org>
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> Besides, a few stray neutrons never hurt anyone.... right? ;)
No. Apparently it doesn't hurt at all. It just silently harms you. :-}
> Oh, yeah, and there's that big thick plate of leaded glass between him
> and the reactor that should help.
Wouldn't leaded glass be opaque?
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From: scott
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 10 Mar 2011 06:49:11
Message: <4d78bab7$1@news.povray.org>
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>>>> You can make them rectangular, you know. ;-)
>>>
>>> This would work? How?
>>
>> http://en.wikipedia.org/wiki/Sudoku#Variants
>>
>
> OK, aside from nonomino they all follow a pattern of n rows x n columns
> in blocks of n. nonomino changes this a bit by making the blocks
> arbitrary in shape.
I've seen ones that are 3x2 blocks arranged in a 2x3 grid, so you need
1-6 in each block, row and column.
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From: Le Forgeron
Subject: Re: Random wonderings 0x20c26764ae15b956c9a5eb7c1a237639
Date: 10 Mar 2011 08:57:34
Message: <4d78d8ce$1@news.povray.org>
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Le 10/03/2011 12:44, Invisible a écrit :
>> Besides, a few stray neutrons never hurt anyone.... right? ;)
>
> No. Apparently it doesn't hurt at all. It just silently harms you. :-}
There is no nerves on the ADN, so no dolors!
>
>> Oh, yeah, and there's that big thick plate of leaded glass between him
>> and the reactor that should help.
>
> Wouldn't leaded glass be opaque?
Ever seen some Bohemian glass ?
(Prague is well-known...)
Glass with 30% of PbO (lead oxyd), and very clear!
Household cristal is between 18 and 38 % PbO (% weight)
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