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  #981  
Old 10.04.2010, 22:10
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Re: Ask a Scientist

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Can somebody lend me a razor blade, please?
Can someone explain what razor blades have to do with Moebius strips? Of course, if you used it to split the strip in two along its length you'd get two intertwined loops, which is pretty amazing, but I'm not sure that DB's topology is up to that, so I remain bemused.
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  #982  
Old 10.04.2010, 23:00
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Re: Ask a Scientist

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Please try not to hit the bottle...
It's too klein.

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Can someone explain what razor blades have to do with Moebius strips? Of course, if you used it to split the strip in two along its length you'd get two intertwined loops, which is pretty amazing, but I'm not sure that DB's topology is up to that, so I remain bemused.
I think it probably is - the reference seemed obvious to me.
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  #983  
Old 10.04.2010, 23:05
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Re: Ask a Scientist

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Of course, if you used it to split the strip in two along its length you'd get two intertwined loops, which is pretty amazing, but I'm not sure that DB's topology is up to that, so I remain bemused.
Not in my universe, you wouldn't, you'd get a single loop; but YSTCMV
You been near the LHC recently??

EDIT: Just seen "Location: France, near Geneva"
.
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  #984  
Old 10.04.2010, 23:57
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Re: Ask a Scientist

It's a fair cop.... With a half twist the razorblade produces one long strip. With a full twist, you get the two linked ones.

Odd that DB didn't pick me up on that himself.

Last edited by FrankZappa; 10.04.2010 at 23:58. Reason: Pressed wrong button before finishing
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  #985  
Old 11.04.2010, 03:25
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Re: Ask a Scientist

I think DB was intending to slit his wrists.

After subsequent posts, he's probably settled for hitting his head against the wall until he's unconscious.
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  #986  
Old 11.04.2010, 03:28
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Re: Ask a Scientist

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I think DB was intending to slit his wrists.

After subsequent posts, he's probably settled for hitting his head against the wall until he's unconscious.
You're not far wrong. I'm pretty close to unconsciousness, but it's the Aldi Glenbachie that's to blame, cos nobody came up with a razor blade...

Never mind... back to the 'scientists'...

(Admin: bring back the Thanks buttons in off-topic, per favore, bitte, s'il vous plait, ta!)
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  #987  
Old 12.04.2010, 22:31
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Re: Ask a Scientist

Of course, I knew what DB wanted a razorblade for really.

Why did you get so grumpy, DB?

I thought we were a broad church here.

What's your problem with a little nerdy fun?
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  #988  
Old 17.04.2010, 16:41
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Re: Ask a Scientist

Home advise requested.

You buy a 2 ltr bottle of Coke Cola.

You open it and poor yourself a glass and therefore obviously the bottle is now not full.
Everyone knows that now there is air in the bottle (due to space) the coke will start to become flat.

I thought that if I squeeze the bottle to make sure that the bottle is now full by in effect making the bottle smaller in volume and then tightening the screw top on it.

After about 15 minutes the bottle is full size again.


(1) Is this because the gasses inside have pushed the bottle back out to full size?

(2) Has this action by me made my Coke Cola keep its fizz longer or been worse than if I hadn't squeezed the bottle smaller before closing the screw cap?
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  #989  
Old 17.04.2010, 16:50
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Re: Ask a Scientist

My answer (a Bioinformatician not a chemist but i'll take a stab)

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(1) Is this because the gasses inside have pushed the bottle back out to full size?
Id assume so.

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(2) Has this action by me made my Coke Cola keep its fizz longer or been worse than if I hadn't squeezed the bottle smaller before closing the screw cap?
You are probably making it worse. The carbon dioxide that is saturated in the liquid is now out and in the container rather than the coke.
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  #990  
Old 17.04.2010, 17:10
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Re: Ask a Scientist

Ah, a less controversial question about carbon dioxide.

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(1) Is this because the gasses inside have pushed the bottle back out to full size?
Yes.

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(2) Has this action by me made my Coke Cola keep its fizz longer or been worse than if I hadn't squeezed the bottle smaller before closing the screw cap?
Yes. Jimmy Bee is correct.
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  #991  
Old 17.04.2010, 18:02
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Re: Ask a Scientist

Apart from gas, it is known that Coco Cola is 50 times more acidic than
ordinary tap water, and we give it to our children!

It has a pH of 2.5 ?
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  #992  
Old 17.04.2010, 18:04
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Re: Ask a Scientist

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Apart from gas, it is known that Coco Cola is 50 times more acidic than
ordinary tap water, and we give it to our children!
We give them oranges, too...

They get new teeth after a few years anyway, so why worry about it?
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  #993  
Old 17.04.2010, 22:49
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Re: Ask a Scientist

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Apart from gas, it is known that Coco Cola is 50 times more acidic than
ordinary tap water, and we give it to our children!

It has a pH of 2.5 ?
And the gastric acid in your stomach is maybe 10 times more acid than that, so ... nothing to worry about on that score.
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  #994  
Old 19.04.2010, 11:39
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Ask a Scientist about the volcano

Would the volcano stop erupting silica and simply spew out lava if the top vent was made much wider?

I was thinking of suggesting the European air forces could bomb the volcano, as maybe after 66 years they could do with some practice?

Last edited by Ittigen; 19.04.2010 at 11:40. Reason: spelling ...
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  #995  
Old 19.04.2010, 12:17
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Re: Ask a Scientist about the volcano

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Would the volcano stop erupting silica and simply spew out lava if the top vent was made much wider?

I was thinking of suggesting the European air forces could bomb the volcano, as maybe after 66 years they could do with some practice?
airspace is closed
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  #996  
Old 19.04.2010, 13:03
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Re: Ask a Scientist

Slinky + Escalator = Infinite fun?
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  #997  
Old 19.04.2010, 13:06
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Re: Ask a Scientist about the volcano

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Would the volcano stop erupting silica and simply spew out lava if the top vent was made much wider?

I was thinking of suggesting the European air forces could bomb the volcano, as maybe after 66 years they could do with some practice?

Um........no.
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  #998  
Old 19.04.2010, 13:11
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Re: Ask a Scientist about the volcano

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Um........no.
Airspace is open to military aircraft. Are you qualified to say no?
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  #999  
Old 19.04.2010, 13:18
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Re: Ask a Scientist about the volcano

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Airspace is open to military aircraft. Are you qualified to say no?
Not regarding the airspace question, no. With regard to making the hole wider, yes. Unless you wanted to dump multiple large yield nukes in the hole and hope for the best.
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  #1000  
Old 19.04.2010, 13:29
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Re: Ask a Scientist

Thank you for the, for me, surprising answer.
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