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  1. #21
    Nothing but a Thing Coop's Avatar
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    Quote Originally Posted by jesse3638 View Post
    Water does compress. It takes 300k psi to compress it 1%. Sorry I teach hydraulics..haha

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    Oh geeze! Now you've done it! WJCO is gonna want to see this!


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  2. #22
    Knows a Thing or Two dchew's Avatar
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    Quote Originally Posted by WJCO View Post
    Lol. Never heard that, but I trust you. I thought the first law of hydraulics was "A liquid cannot be compressed." Educate me, I'm curious.
    That's essentially true for most "normal" applications, but even in physics, laws are meant to be broken at some point. He said 1% at 300000 psi. That's a barely noticeable change at 20,000x atmospheric pressure.

    Water is unique because it reaches its smallest volume/highest density at 4 degrees C, so technically it compresses (contracts is prolly a better word) as it warms or cools to that point even without changing pressure. And expands as it moves away from that point. It's a very small amount and if contained, that small amount can exert an astounding amount of pressure. That's why we have expansion joints/tanks on our water heaters. And also why, for the most part, it's considered incompressible.

    Once it reaches 0 degrees all hell breaks loose. All this is a good thing, since otherwise our oceans would freeze from the bottom making it much more difficult for life to take hold.

    Now you're gonna start calling me Prime9.


    Dave

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    Last edited by dchew; 01-11-2017 at 10:42 AM.

  3. #23
    Meme King WJCO's Avatar
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    Quote Originally Posted by dchew View Post
    That's essentially true for most "normal" applications, but even in physics, laws are meant to be broken at some point. He said 1% at 300000 psi. That's a barely noticeable change at 20,000x atmospheric pressure.

    Water is unique because it reaches its smallest volume/highest density at 4 degrees C, so technically it compresses (contracts is prolly a better word) as it warms or cools to that point even without changing pressure. And expands as it moves away from that point. It's a very small amount and if contained, that small amount can exert an astounding amount of pressure. That's why we have expansion joints/tanks on our water heaters. And also why, for the most part, it's considered incompressible.

    Once it reaches 0 degrees all hell breaks loose. All this is a good thing, since otherwise our oceans would freeze from the bottom making it much more difficult for life to take hold.

    Now you're gonna start calling me Prime9.


    Dave

    IMG_0127.JPG


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    Lol. Awesome info.

  4. #24
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    Quote Originally Posted by dchew View Post
    That's essentially true for most "normal" applications, but even in physics, laws are meant to be broken at some point. He said 1% at 300000 psi. That's a barely noticeable change at 20,000x atmospheric pressure.

    Water is unique because it reaches its smallest volume/highest density at 4 degrees C, so technically it compresses (contracts is prolly a better word) as it warms or cools to that point even without changing pressure. And expands as it moves away from that point. It's a very small amount and if contained, that small amount can exert an astounding amount of pressure. That's why we have expansion joints/tanks on our water heaters. And also why, for the most part, it's considered incompressible.

    Once it reaches 0 degrees all hell breaks loose. All this is a good thing, since otherwise our oceans would freeze from the bottom making it much more difficult for life to take hold.

    Now you're gonna start calling me Prime9.


    Dave

    IMG_0127.JPG


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    Truly fascinating!

  5. #25
    Nothing but a Thing Coop's Avatar
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    Quote Originally Posted by WJCO View Post
    Lol. Awesome info.
    Compression at that level creates ice that is hotter than the boiling point of water. Neat shit!


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  6. #26
    Hooked 12-mile's Avatar
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    This thread forced me to do a google search and read up on this.
    Learn something new every day.


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  7. #27
    Meme King WJCO's Avatar
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    Quote Originally Posted by 12-mile View Post
    This thread forced me to do a google search and read up on this.
    Learn something new every day.


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    Me too. Fricking school system taught me some bullshit

  8. #28
    Hooked mstraw9379's Avatar
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    Quote Originally Posted by WJCO View Post
    Me too. Fricking school system taught me some bullshit
    They rarely teach all the info. They taught is that water boils at 212F (100C), but didn't tell us that was only part of the statement.
    I didn't learn that there was a relationship between temperature and pressure until after I joined the Navy.

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  9. #29
    Knows a Thing or Two dchew's Avatar
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    Quote Originally Posted by mstraw9379 View Post
    They rarely teach all the info. They taught is that water boils at 212F (100C), but didn't tell us that was only part of the statement.
    I didn't learn that there was a relationship between temperature and pressure until after I joined the Navy.

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    WJCO learned that the first time he tried to cook something in Colorado and it took 20% longer...

    Dave

  10. #30
    Nothing but a Thing mudmobeeler's Avatar
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    Rescued a jeep from mud that won't start now

    You might pull the starter off and pull it apart to see if it's packed with mud. A buddy decided to jump a k5 across a small pond. It nose planted into the mud. Once we got it out, it wouldn't start. Starter just clicked. We pulled the starter and it was packed with mud. Cleaned it and she fired right up.

    Just a thought.
    2014 JKUR named NORDNDD.

    Build thread: http://wayalife.com/showthread.php?2...ing-of-NoRdNdd



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