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Author Topic: Coudy Ice cubes versus Clear ice cubes  (Read 13371 times)

Offline neilep

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Coudy Ice cubes versus Clear ice cubes
« on: 14/08/2007 13:11:37 »
Dear Icecube Instructors,

These are some lovely ice cubes :



Nice aren't they ?...notice how clear and non cloudy they are ?



Why do some ice cubes go cloudy ?...why do others not ?


 

Offline eric l

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Coudy Ice cubes versus Clear ice cubes
« Reply #1 on: 14/08/2007 13:37:14 »
Haven't we had this question before ?
http://www.thenakedscientists.com/forum/index.php?action=search2

Maybe the answers were not quite satisfactory.

Anyway, here is the answer from "How stuff works"
http://home.howstuffworks.com/question205.htm
 

Offline dentstudent

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Coudy Ice cubes versus Clear ice cubes
« Reply #2 on: 14/08/2007 13:38:57 »
I've always thought that boiled water would give clear(er) cubes than water straight from the tap. I don't know whether it's true though! Perhaps it also depends on the speed of freeze? Clear cubes will I suspect have less "stuff" (don't you love scientific terminology, but I'm talking about air bubbles, particulates etc) in them refracting less light, whereas cloudy ones will have more, hence the whiteish hue.


(I was at school with a guy called Whiteish Hugh).
 

paul.fr

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Coudy Ice cubes versus Clear ice cubes
« Reply #3 on: 14/08/2007 15:23:27 »
Eric, the first link does not work, for me anyway.

Stuart, you are right about boiled water. Boiling water removes most of the air, so it will form clearer ice cubes.

what you see as white(cloudy) not clear is the trapped air inside the ice cube.
 

Offline dentstudent

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Coudy Ice cubes versus Clear ice cubes
« Reply #4 on: 14/08/2007 15:45:36 »
Eric, the first link does not work, for me anyway.

Stuart, you are right about boiled water. Boiling water removes most of the air, so it will form clearer ice cubes.

what you see as white(cloudy) not clear is the trapped air inside the ice cube.

It didn't work for me either.....

Thanks Paul - good to know that at least some intuitive guess work pays out!
 

paul.fr

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Coudy Ice cubes versus Clear ice cubes
« Reply #5 on: 14/08/2007 16:04:19 »

Thanks Paul - good to know that at least some intuitive guess work pays out!

simple to prove.
http://www.thenakedscientists.com/forum/index.php?topic=6730.msg115143#msg115143
 

Offline neilep

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Coudy Ice cubes versus Clear ice cubes
« Reply #6 on: 14/08/2007 16:07:53 »
It didn't work for me too !

I know we've had topics about how one temperature of water freezes quicker than the other but if I have been non-circumspect and reckless then please delete this  thread peeps.

In any case, thanks for the other link Eric and my appreciations also to Stuart and Paul.....
 

paul.fr

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Coudy Ice cubes versus Clear ice cubes
« Reply #7 on: 14/08/2007 16:13:29 »
It didn't work for me too !

I know we've had topics about how one temperature of water freezes quicker than the other but if I have been non-circumspect and reckless then please delete this  thread peeps.

In any case, thanks for the other link Eric and my appreciations also to Stuart and Paul.....

Neil,

i think we both know that many questions are repeated  ;), i don't see this as a bad thing because most people will not do a search. It also gives newer members the chance to see the old topic, when the link works...Eric...and have an input in to the newer topic.

And gives me an excuse to post a simple experiment, in a topic (almost) nobody else contributes to.
 

Offline eric l

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Coudy Ice cubes versus Clear ice cubes
« Reply #8 on: 14/08/2007 17:10:14 »
That first link should have been this :
http://www.thenakedscientists.com/forum/index.php?topic=5299.msg48864#msg48864

(I was too much in a hurry and pasted the "search" page rather than the result)

BTW, do you mean that older members should wait a while before they post an answer, in order to give new members a chance ? 
« Last Edit: 14/08/2007 17:14:45 by eric l »
 

Offline neilep

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Coudy Ice cubes versus Clear ice cubes
« Reply #9 on: 14/08/2007 17:19:34 »
That first link should have been this :
http://www.thenakedscientists.com/forum/index.php?topic=5299.msg48864#msg48864

(I was too much in a hurry and pasted the "search" page rather than the result)

BTW, do you mean that older members should wait a while before they post an answer, in order to give new members a chance ? 

Cripes !! How embarrassing ...it was even ME who asked the question !!

...well...it was almost a year ago and I do feel a little worse for wear today !!.......that's my excuse and I'm sticking to it !!
 

Offline lightarrow

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Coudy Ice cubes versus Clear ice cubes
« Reply #10 on: 14/08/2007 18:55:34 »
That first link should have been this :
http://www.thenakedscientists.com/forum/index.php?topic=5299.msg48864#msg48864

(I was too much in a hurry and pasted the "search" page rather than the result)

BTW, do you mean that older members should wait a while before they post an answer, in order to give new members a chance ? 

Cripes !! How embarrassing ...it was even ME who asked the question !!

...well...it was almost a year ago and I do feel a little worse for wear today !!.......that's my excuse and I'm sticking to it !!
Neil, I'm sure you have already asked all the possible questions in the Universe, so it's not so strange you've come to repeat the same ones! :)
 

Offline neilep

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Coudy Ice cubes versus Clear ice cubes
« Reply #11 on: 14/08/2007 19:12:16 »
That first link should have been this :
http://www.thenakedscientists.com/forum/index.php?topic=5299.msg48864#msg48864

(I was too much in a hurry and pasted the "search" page rather than the result)

BTW, do you mean that older members should wait a while before they post an answer, in order to give new members a chance ? 

Cripes !! How embarrassing ...it was even ME who asked the question !!

...well...it was almost a year ago and I do feel a little worse for wear today !!.......that's my excuse and I'm sticking to it !!
Neil, I'm sure you have already asked all the possible questions in the Universe, so it's not so strange you've come to repeat the same ones! :)
LOL..I am sure you are right Alberto,

I suppose Data  would say I'm stuck in a " Temporal Causality Loop" http://memory-alpha.org/en/wiki/Temporal_causality_loop

« Last Edit: 14/08/2007 19:14:24 by neilep »
 

Offline Karen W.

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Coudy Ice cubes versus Clear ice cubes
« Reply #12 on: 14/08/2007 19:39:29 »
That first link should have been this :
http://www.thenakedscientists.com/forum/index.php?topic=5299.msg48864#msg48864

(I was too much in a hurry and pasted the "search" page rather than the result)

BTW, do you mean that older members should wait a while before they post an answer, in order to give new members a chance ? 

Cripes !! How embarrassing ...it was even ME who asked the question !!

...well...it was almost a year ago and I do feel a little worse for wear today !!.......that's my excuse and I'm sticking to it !!
Neil, I'm sure you have already asked all the possible questions in the Universe, so it's not so strange you've come to repeat the same ones! :)
LOL..I am sure you are right Alberto,

I suppose Data  would say I'm stuck in a " Temporal Causality Loop" http://memory-alpha.org/en/wiki/Temporal_causality_loop



LOL LOL.. Temperal causality loop.. Yep that sounds good! I do recall you asking that question, I thought you drug up your old thread finding something new to add or something!
 

Offline neilep

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Coudy Ice cubes versus Clear ice cubes
« Reply #13 on: 14/08/2007 19:53:18 »
No Mam....Genuine confusion !!..
 

Offline Karen W.

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Coudy Ice cubes versus Clear ice cubes
« Reply #14 on: 14/08/2007 20:12:59 »
I been there I understand all to well. interesting topic though!
 

paul.fr

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Coudy Ice cubes versus Clear ice cubes
« Reply #15 on: 15/08/2007 07:29:41 »


BTW, do you mean that older members should wait a while before they post an answer, in order to give new members a chance ? 

It would be nice, not too practical though. How long should you wait before posting a reply? I don't know. But "new" topics that have not been added to for over a year does give newer members the chance to have some input.

I was not here when Neil asked the question the first time, and got to answer the question. Obviously you and Mr Lightarrow give better answers the first time round, but comparing answers given a year ago to those given now is always interesting.
 

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Coudy Ice cubes versus Clear ice cubes
« Reply #15 on: 15/08/2007 07:29:41 »

 

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