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  #101  
Old 20.10.2007, 14:52
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Re: Ask a Scientist

No, it's just the unique make-up of water.



This is the crystal lattice of water. With the red balls being oxygen and the blue balls (he, he) being Hydrogen. Oxygen has a higher affinity for the shared electrons (that make up a bond) than Hydrogen does, giving it a partial negative charge and the Hydrogen a partial positive charge. The partial negative charge on oxygen has an affinity for the partial positive charge on Hydrogen. For this to be optimal in the solid phase (H2O crystal lattice) a certain distance is required which is larger than the distances between molecules in the more mobile liquid phase. (the phenomena described, partial negative and partial positive charge association between to different molecules is called Hydrogen bonding)

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Silly me. I meant 'more dense', like myself.

Is there any evidence that water was 'tweeked' to behave differently ? Otherwise we wouldn't have life.
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  #102  
Old 20.10.2007, 14:53
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Re: Ask a Scientist

I'm not sure I follow your question.

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anyone made that cuppa yet?
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  #103  
Old 20.10.2007, 15:05
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Re: Ask a Scientist

Its an existentialism question and one of shared-perception. Allow me as this is my field of expertise.

No. Make your own. Do think I just exist to serve you ? I am sick of being expected to clean up after you.

The married forumers may recognise certain instances of above tea-related phenomena.

dave

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I'm not sure I follow your question.
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  #104  
Old 20.10.2007, 15:10
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Re: Ask a Scientist

i was wondering if anyone had made a cuppa and observed the effect i described previously?



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I'm not sure I follow your question.
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  #105  
Old 20.10.2007, 15:16
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Re: Ask a Scientist

I must have never noticed it, or am just not sure exactly what you are describing. It I had to guess I would say it's surface tension, coupled with liquids of different density.

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i was wondering if anyone had made a cuppa and observed the effect i described previously?
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  #106  
Old 20.10.2007, 15:17
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Re: Ask a Scientist

If you want something to say, you could try: "It can be shown through rigorous application of the methods described that all modern jazz is complete crap". Stick that in an abstract and publish it as first author. I'll peer-review for you. Be aware there may be predated publications that reach the same conclusions.

dave

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surfacace tension and different densities???? Just to say something.....
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  #107  
Old 20.10.2007, 15:18
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Re: Ask a Scientist

Am trying to reproduce the experiment as we speak. Have not been very sucessfull, have to admit... with milk it works better, you say? Do you use whole fat milk? How hot should the the tea be? At this rate, we'll end up publishing in the Annals of Improbable Research.........
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  #108  
Old 20.10.2007, 15:19
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Re: Ask a Scientist

Ah, my favorite journal. Right next to The Journal of Irreproducible Results

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Am trying to reproduce the experiment as we speak. Have not been very sucessfull, have to admit... with milk it works better, you say? Do you use whole fat milk? How hot should the the tea be? At this rate, we'll end up publishing in the Annals of Improbable Research.........
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  #109  
Old 20.10.2007, 15:21
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Re: Ask a Scientist

How do you guys ever get funding ? You're the scientist, devise the experiment and we will validate it , together with biscuits, and ensure your cuppa is repeatable.

dave


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Am trying to reproduce the experiment as we speak. Have not been very sucessfull, have to admit... with milk it works better, you say? Do you use whole fat milk? How hot should the the tea be? At this rate, we'll end up publishing in the Annals of Improbable Research.........
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  #110  
Old 20.10.2007, 15:22
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Re: Ask a Scientist

There was a very good BBCR4 series on falsified science a couple of years ago. Let me see if I can find it...

dave

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Ah, my favorite journal. Right next to The Journal of Irreproducible Results
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  #111  
Old 20.10.2007, 15:23
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Re: Ask a Scientist

blow on the teaspoon before gently allowing a small drop to fall..... the temperature difference helps :-) (at least from memory....) i am trying it with cream of mushroom cup-a-soup now, it's not working. but i have definitely see it before.


Am trying to reproduce the experiment as we speak. Have not been very sucessfull, have to admit... with milk it works better, you say? Do you use whole fat milk? How hot should the the tea be? At this rate, we'll end up publishing in the Annals of Improbable Research.........
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  #112  
Old 20.10.2007, 15:26
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Re: Ask a Scientist

oh oh; someone has given up on science and scientists being all knowing.....




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There was a very good BBCR4 series on falsified science a couple of years ago. Let me see if I can find it...

dave
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  #113  
Old 20.10.2007, 15:31
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Re: Ask a Scientist

Nah, but then scientific method is based on falsification. Karl told me.

dave


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oh oh; someone has given up on science and scientists being all knowing.....
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  #114  
Old 20.10.2007, 15:34
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Re: Ask a Scientist

My understanding is that the "expanding" is not in the sense of a bubble expanding. So, if you want to think about it while in 3D/4D, then the curvature of space is slowly changing with time. By analogy, if Earth was expanding very slowly you would not notice much. But in the very long term your neighbor would end up living a little further away from you.

[quote=Uncle Max;118450]If the Universe is expanding, where or what is it expanding into?
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  #115  
Old 20.10.2007, 15:35
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Re: Ask a Scientist

we need to eat too. who's karl... Dr Karl from Australia?

anyway, hope someone sees the droplet effect soon.

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Nah, but then scientific method is based on falsification. Karl told me.

dave
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  #116  
Old 20.10.2007, 15:39
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Re: Ask a Scientist

If you don't know Karl, either you are scientist and joking, or not a scientist. If neither, then I would be worried. Key player in epistemology.

dave



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we need to eat too. who's karl... Dr Karl from Australia?

anyway, hope someone sees the droplet effect soon.
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  #117  
Old 20.10.2007, 15:43
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Re: Ask a Scientist

Ended up drinking my tea, plus biscuit......
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  #118  
Old 20.10.2007, 15:49
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Re: Ask a Scientist

nope, don't know that Karl..... i know this one
http://www.abc.net.au/science/k2/
Dr Karl is way cool, ask anyone grew up listening to Triple J.

i'm still a scientist though........ honest


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If you don't know Karl, either you are scientist and joking, or not a scientist. If neither, then I would be worried. Key player in epistemology.

dave
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  #119  
Old 20.10.2007, 15:53
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Re: Ask a Scientist

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My understanding is that the "expanding" is not in the sense of a bubble expanding. So, if you want to think about it while in 3D/4D, then the curvature of space is slowly changing with time. By analogy, if Earth was expanding very slowly you would not notice much. But in the very long term your neighbor would end up living a little further away from you.
So, by corollary, do the church bells get quieter with time, and how long does one have to wait?
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  #120  
Old 20.10.2007, 15:57
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Re: Ask a Scientist

I glad such universe expansion will have other such benefits for the swiss community to warrant further research, beyond the neighbours being forced further away....

dave


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So, by corollary, do the church bells get quieter with time, and how long does one have to wait?
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