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  1. - Top - End - #31
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    Griffon

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    Default Re: would lava crush a fireproof person?

    Quote Originally Posted by Imbalance View Post
    Does it help to clarify that death by crushing doesn't necessarily mean eyes popping, bones ground to dust, and flattened into a pancake?
    It depends on the lava, pāhoehoe is less viscous.

    Or this:

    https://en.wikipedia.org/wiki/Mount_Nyiragongo#Geology

    The lava emitted in eruptions at Nyiragongo is often unusually fluid. Nyiragongo's lavas are made of melilite nephelinite, an alkali-rich type of volcanic rock whose unusual chemical composition may be a factor in the unusual fluidity of the lavas there. Whereas most lava flows move rather slowly and rarely pose a danger to human life, Nyiragongo's lava flows may race downhill at up to 100 km/h (60 mph). This is because of the extremely low silica content (the lava is mafic). Hawaiian volcanic eruptions are also characterized by lavas with low silica content, but the Hawaiian volcanoes are broad, shallow-sloped shield volcanoes in contrast to the steep-sided cone of Nyiragongo, and the silica content is high enough to slow most Hawaiian flows to walking pace.
    Some people seem to be thinking exclusively about the most viscous, barely moving lava, but not all lava is like that.
    Last edited by halfeye; 2019-05-21 at 08:51 AM.
    The end of what Son? The story? There is no end. There's just the point where the storytellers stop talking.

  2. - Top - End - #32
    Troll in the Playground
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    Feb 2013

    Default Re: would lava crush a fireproof person?

    Thick lava like that won't move out of the way as you try to breathe, so your death would be less 'crushing' and more 'suffocating', similar to someone trapped in a grain bin.

  3. - Top - End - #33
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    Griffon

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    Default Re: would lava crush a fireproof person?

    Quote Originally Posted by Rogar Demonblud View Post
    Thick lava like that won't move out of the way as you try to breathe, so your death would be less 'crushing' and more 'suffocating', similar to someone trapped in a grain bin.
    Where did you get "thick" from out of "flows at 60 mph"?
    The end of what Son? The story? There is no end. There's just the point where the storytellers stop talking.

  4. - Top - End - #34
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    Goblin

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    Feb 2014

    Default Re: would lava crush a fireproof person?

    Lava is around one fifth as viscous as molasses, and twice as dense. Since the great molasses flood moved at 35mph, I would say those numbers check out. It's still one to three times as thick as a milkshake, no matter how fast it can flow.

    Another thing to think about is the pressure differential, if you're floating to the surface faster than 1 meter/minute the bends could be be a serious issue. Survive the crushing force and the otherworldly heat, die to fizzy blood.
    "The error is to be human"

  5. - Top - End - #35
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    Griffon

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    Default Re: would lava crush a fireproof person?

    Quote Originally Posted by Spojaz View Post
    Lava is around one fifth as viscous as molasses, and twice as dense. Since the great molasses flood moved at 35mph, I would say those numbers check out. It's still one to three times as thick as a milkshake, no matter how fast it can flow
    It varies. Not all lava is the same.

    nother thing to think about is the pressure differential, if you're floating to the surface faster than 1 meter/minute the bends could be be a serious issue. Survive the crushing force and the otherworldly heat, die to fizzy blood.
    Make your mind up, too thick to move, or the bends from moving too fast, I suggest you can't have both in the same lava.
    The end of what Son? The story? There is no end. There's just the point where the storytellers stop talking.

  6. - Top - End - #36
    Troll in the Playground
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    Default Re: would lava crush a fireproof person?

    Quote Originally Posted by halfeye View Post
    Where did you get "thick" from out of "flows at 60 mph"?
    Quote Originally Posted by halfeye View Post
    Some people seem to be thinking exclusively about the most viscous, barely moving lava
    Sorry, I should've quoted the part I was responding to.

  7. - Top - End - #37
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    Knaight's Avatar

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    Aug 2008

    Default Re: would lava crush a fireproof person?

    Quote Originally Posted by halfeye View Post
    Where did you get "thick" from out of "flows at 60 mph"?
    You can get high flow rates in high viscosity liquids (see: the molasses flood). On top of that when the standard of comparison is water the viscosity doesn't need to be that high before it starts impeding those in it significantly further.
    I would really like to see a game made by Obryn, Kurald Galain, and Knaight from these forums.

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    Current Design Project: Legacy, a game of masters and apprentices for two players and a GM.

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