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  #901  
Old 12.01.2010, 15:47
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Re: Ask a Scientist

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How do you measure laziness?
Oh, that's easy, in INVERSE ERGS

Sorry, too much effort to give the SI equivalent.
.
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  #902  
Old 12.01.2010, 15:51
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Re: Total acids and pH

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IIRC, "sourness" varies independently with pH, concentration, and specific
anions(s) involved.

So, I have a sneaking suspicion that only empirical data would answer this
question satisfactorily.

Is there a wine question lurking behind this one?
.
Its in relation to food and wine matching but not specifically to do with wine.

I guess its a little like putting you hand in a fire at 400 C for 5 minutes or one at 350 C for 20 minutes - both are going to hurt!
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  #903  
Old 12.01.2010, 20:55
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Re: Ask a Scientist

I was watching clips of a rather silly film on youtube the other day, and saw a chap get eaten by a monster.

It got me wondering: If a gentleman were to be picked up by a monster, bitten in half and swallowed, how long would it take him to die, and what would his last memories be? This is presuming, of course, that the monster doesn't merely decapitate him, but, say, bites him across his waist, avoiding organs of immediate use, such as the heart and lungs.

Would the chap suffocate in the foul creature's oesophagus, or would he have given up the ghost before then?

Is there anybody on the forum who has been attacked by a crocodile or similar, and therefore has some notion as to what would happen in this kind of circumstances?

All answers gratefully received.
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  #904  
Old 12.01.2010, 21:18
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Re: Ask a Scientist

I ll give it a shot.
If a person was to be decapitated (as in torn into 2 bits without damaging the heart or lungs) cause of death could be the following
1. it is possible that due to the shock of the decapitation he suffers a heart attack and dies (this could also happen due to seeing the monster come for you)

2. secondly due to server damage to the body, vein / artery rupture the person would loose consciousness rapidly and eventually die(I would assume a few minutes).

3. Lastly, most animals don't just swallow but chew or squeeze their prey which will least to suffocation, crushing of important internal organs e.g. Crushing of the rib cage, puncturing the lungs etc
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  #905  
Old 12.01.2010, 21:20
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Re: Ask a Scientist

So it would be pretty quick, then?

That's a relief.
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  #906  
Old 12.01.2010, 21:24
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Re: Ask a Scientist

A few minutes of unadulterated extremely excruciating agony unless you are of a weak heart..
not exactly a relief

Last edited by borntough; 12.01.2010 at 21:25. Reason: added some more explitives
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  #907  
Old 12.01.2010, 21:34
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Re: Ask a Scientist

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A few minutes of unadulterated extremely excruciating agony unless you are of a weak heart..
not exactly a relief
So it'd sting a bit, then?
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  #908  
Old 12.01.2010, 21:46
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Re: Ask a Scientist

A rupture of the abdominal aorta, which is an inevitable consequence of the being cut or bitten in halves, would most likely result in almost immediate unconsciousness due to an almost total loss of blood pressure in the brain, I venture to say, within five seconds at most. Actual death will take somewhat longer, but that will be the least concern of that guy.
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  #909  
Old 12.01.2010, 21:48
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Re: Ask a Scientist

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A rupture of the abdominal aorta, which is an inevitable consequence of the being cut or bitten in halves, would most likely result in almost immediate unconsciousness due to an almost total loss of blood pressure in the brain, I venture to say, within five seconds at most. Actual death will take somewhat longer, but that will be the least concern of that guy.
Now that is a relief. So it's effectively the same as sudden decapitation?
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  #910  
Old 12.01.2010, 21:53
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Re: Ask a Scientist

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Now that is a relief. So it's effectively the same as sudden decapitation?
Not quite, but the difference is marginal. What are your plans?
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  #911  
Old 12.01.2010, 21:54
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Re: Ask a Scientist

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Not quite, but the difference is marginal. What are your plans?
I was going to join my Unce on an expedition to find the mokele-mbembe deep in the forests of the Congo.

Want to come?
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  #912  
Old 12.01.2010, 23:38
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Re: Ask a Scientist

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I was going to join my Unce on an expedition to find the mokele-mbembe deep in the forests of the Congo.

Want to come?
Sounds enticing, but I'm afraid my appointments book is too full this year. Guess that critter will be there next year too. Right? And even if not, as long as there is enough single malt to fight malaria, I'm game anyway.
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  #913  
Old 15.01.2010, 15:16
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Re: Ask a Scientist

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Here's a social psychology question: how do people instinctively know when they are being looked at? Or is it a myth?

I also have that I don't think it's a myth... Also why do people yawn when they see other people yawn? (I saw someone say there is no such thing as a dumb question !)
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  #914  
Old 15.01.2010, 15:25
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Re: Ask a Scientist

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I also have that I don't think it's a myth... Also why do people yawn when they see other people yawn? (I saw someone say there is no such thing as a dumb question !)
Probably for the same reason when you start to itch when you see someone scratching themselves?
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  #915  
Old 15.01.2010, 15:31
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Re: Ask a Scientist

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I also have that I don't think it's a myth... Also why do people yawn when they see other people yawn? (I saw someone say there is no such thing as a dumb question !)
Mythbusters did this one. People did tend to yawn when "provoked". But it was a small sample and the results were not so significant.
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  #916  
Old 15.01.2010, 15:32
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Re: Ask a Scientist

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I also have that I don't think it's a myth... Also why do people yawn when they see other people yawn? (I saw someone say there is no such thing as a dumb question !)
was on holiday in the everglades once, did some fake yawns at some gators (safely fenced away) and at least 4 of them yawned back

Or maybe they were seeing how far they would have open their mouths to chomp on my gut......
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  #917  
Old 15.01.2010, 16:09
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Re: Ask a Scientist

the detailed explaination can be found here on why water expands on freezing.
As for water not being incompressible I believe that to be incorrect.

I remember reading in school about water when subjected to high pressure can convert to solid form(I forgot the pressure and temperature but it was definitly not 0 degrees celcius). this "HOT ICE" will be denser than water.



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Why does water expand when it freezes? Also, why is water incompressible?

Edward J. Cunningham
Derwood, MD
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  #918  
Old 15.01.2010, 16:52
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Re: Ask a Scientist

Here's a question:

If a snowball is started down a hill a la Tom and Jerry, supposing the slope is constant, will the growing snowball speed up or slow down as it descends?
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  #919  
Old 15.01.2010, 16:54
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Re: Ask a Scientist

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Here's a question:

If a snowball is started down a hill a la Tom and Jerry, supposing the slope is constant, will the growing snowball speed up or slow down as it descends?

I would say this is dependant on the snow cohesion (water content dependant?) and the slope angle. Could go either way
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  #920  
Old 15.01.2010, 16:56
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Re: Ask a Scientist

But also it would eventually reach a terminal velocity.

So: speed up (depending on initial force), then slow down.
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