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  #1561  
Old 20.12.2015, 09:51
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Re: Ask a Scientist

Yes, mostly for cabinetry/woodworking.

https://en.wikipedia.org/wiki/Hoof_glue
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  #1562  
Old 20.12.2015, 13:54
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Re: Ask a Scientist

If you sent a marshmallow into space without a spacesuit, would it explode or implode?
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  #1563  
Old 20.12.2015, 14:29
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Re: Ask a Scientist

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If you sent a marshmallow into space without a spacesuit, would it explode or implode?
No. Why would it do either?
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  #1564  
Old 20.12.2015, 14:34
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Re: Ask a Scientist

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No. Why would it do either?
No idea. If I knew I would`nt have asked.
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  #1565  
Old 20.12.2015, 18:55
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Re: Ask a Scientist

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No idea. If I knew I would`nt have asked.
Like it.
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  #1566  
Old 20.12.2015, 19:27
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Re: Ask a Scientist

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If you sent a marshmallow into space without a spacesuit, would it explode or implode?
It would probably explode because the gas pressure in the trapped air bubbles is atmospheric pressure and the pressure in space is very close to zero.

It's similar to when you inflate a rubber balloon by adding extra air, which increases the pressure inside. It's the difference between inside and outside that determines whether the bubble shrinks or expands.

However, if the stuff in which the bubbles are trapped is strong enough, foamed metal for instance, then nothing will happen.

Atmospheric pressure is 100,000Pascals, whereas marshmallow is probably no more than 100-300Pa (a weak gelatin gel). So expansion should win easily.
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  #1567  
Old 21.12.2015, 03:29
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Re: Ask a Scientist

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It would probably explode because the gas pressure in the trapped air bubbles is atmospheric pressure and the pressure in space is very close to zero.

It's similar to when you inflate a rubber balloon by adding extra air, which increases the pressure inside. It's the difference between inside and outside that determines whether the bubble shrinks or expands.

However, if the stuff in which the bubbles are trapped is strong enough, foamed metal for instance, then nothing will happen.

Atmospheric pressure is 100,000Pascals, whereas marshmallow is probably no more than 100-300Pa (a weak gelatin gel). So expansion should win easily.
Would`t the marshmallow freeze and become very brittle?
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  #1568  
Old 21.12.2015, 11:07
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Re: Ask a Scientist

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It would probably explode because the gas pressure in the trapped air bubbles is atmospheric pressure and the pressure in space is very close to zero.

It's similar to when you inflate a rubber balloon by adding extra air, which increases the pressure inside. It's the difference between inside and outside that determines whether the bubble shrinks or expands.

However, if the stuff in which the bubbles are trapped is strong enough, foamed metal for instance, then nothing will happen.

Atmospheric pressure is 100,000Pascals, whereas marshmallow is probably no more than 100-300Pa (a weak gelatin gel). So expansion should win easily.
I'm positive it would expand. But I'm not convinced it would explode, I somewhat doubt that.

Edit:
It's physics classroom stuff (with a vacuum bell or chamber), and you can find lots of videos on youtube, but none talk about them exploding. If that happened it would certainly be mentioned IMO.

Edit2:
As for them freeezing, depends on their water content. If you make them at home the only water sources are eggwhite and solved gelatine so when done they may contain only an insignificant amout of water, if at all.

Last edited by Urs Max; 21.12.2015 at 11:27.
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  #1569  
Old 21.12.2015, 12:43
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Re: Ask a Scientist

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I'm positive it would expand. But I'm not convinced it would explode, I somewhat doubt that.

Edit:
It's physics classroom stuff (with a vacuum bell or chamber), and you can find lots of videos on youtube, but none talk about them exploding. If that happened it would certainly be mentioned IMO.

Edit2:
As for them freeezing, depends on their water content. If you make them at home the only water sources are eggwhite and solved gelatine so when done they may contain only an insignificant amout of water, if at all.
The escaping air and radiation could cause the marshmallow to cool quickly. Perhaps this would cause the marshmallow to shrink up. Of course, there could be a big difference between whether the marshmallow is in the sun or in the shade when put into space.
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  #1570  
Old 18.03.2016, 13:37
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Re: Ask a Scientist

A new particle or just faulty data?

Excitement grows over Large Hadron Collider's possible new particle

source
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  #1571  
Old 18.03.2016, 20:45
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Re: Ask a Scientist

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A new particle or just faulty data?

Excitement grows over Large Hadron Collider's possible new particle

source
Would be wonderful if it were true, but, sadly, "not real" seems like the most probable outcome. The jury is out.

An actual new fact in high energy physics, instead of all the castles-in-the-sky of string "theory" would bring a refreshing draft of reality into what has become fact-free, self-perpetuating gee-whizzery.
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  #1572  
Old 19.03.2016, 17:37
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Re: Ask a Scientist

If white things are white because they reflect all wavelengths of light, and black things are black because they don't reflect any light; does this mean black things are like light batteries???

If I wear a black top, am I soaking up light??
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  #1573  
Old 19.03.2016, 17:52
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Re: Ask a Scientist

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If white things are white because they reflect all wavelengths of light, and black things are black because they don't reflect any light; does this mean black things are like light batteries???

If I wear a black top, am I soaking up light??
"If I wear a black top, am I soaking up light??" Yes, mostly felt as heat; for example sitting in a sun lit area.
So no light batteries; the energy is dissipated as heat, not stored.
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  #1574  
Old 19.03.2016, 18:06
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Re: Ask a Scientist

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"If I wear a black top, am I soaking up light??" Yes, mostly felt as heat; for example sitting in a sun lit area.
So no light batteries; the energy is dissipated as heat, not stored.
Ah, yes of course! Thank you
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  #1575  
Old 26.03.2016, 19:40
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Re: Ask a Scientist

Why do hot dogs explode in the microwave?
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  #1576  
Old 26.03.2016, 19:58
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Re: Ask a Scientist

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Why do hot dogs explode in the microwave?
Answer nr 10 here http://www.sheknows.com/food-and-rec...rowave-cooking
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  #1577  
Old 26.03.2016, 20:14
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Re: Ask a Scientist

Ha! Thanks..egg explodes too, if I miss the time by a split sec what a mess. I rarely use my microwave, but still. Good answers there, merci.
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  #1578  
Old 28.03.2016, 22:15
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Re: Ask a Scientist

This is an embarrassing problem...

For the last 2 months or so, I get an electric shock several times a day just by touching metal door handles and even plastic light switches. This has culminated in me giving me partner a small electric shock when we kissed. I was wearing rubber soled shoes and no man made fabrics at the time, and we were outdoors.

What's going on and how can I stop it?
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  #1579  
Old 28.03.2016, 22:18
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Re: Ask a Scientist

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This is an embarrassing problem...

For the last 2 months or so, I get an electric shock several times a day just by touching metal door handles and even plastic light switches. This has culminated in me giving me partner a small electric shock when we kissed. I was wearing rubber soled shoes and no man made fabrics at the time, and we were outdoors.

What's going on and how can I stop it?
You have a connection or should I say sparks literally fly when you both kiss?

The culprit is static electricity. You are insulated by your rubber shoes and she (and metal handles) are providing a route to the ground. Here is more stuff - http://www.electrostatics.net/articl...tic_shocks.htm
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  #1580  
Old 28.03.2016, 22:25
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Re: Ask a Scientist

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was wearing rubber soled shoes and no man made fabrics at the time, and we were outdoors.
any pictures?
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