[spam][ot][rambling][crazy] Are Frozen Water Bottles Dangerous?
No offence to Jim: I'm sure one could be designed in such a way to be very dangerous. But I don't expect that anybody would ever do that.
But for fun, let's wonder if there's any way to tel whether one would be! The phase diagram of water is well-known for the unique and prominant increase in volume held by ice.
There's a phase diagram for water at https://ergodic.ugr.es/termo/lecciones/water1.html . I don't know this stuff well, really. It looks like as pressure rises above 10^8 Pa ice undergoes successive solid phase transitions. I'm not sure yet how to relate volume, pressure, and temperature together for a solid.
Air pressure is about 10^5 Pa, I think, so that puts us somewhere down the bottom area of the liquid water phase. The story looks about the same up to around 10^8 Pa, so we can consider this area first. I imagine it could be possible that excessive tightening of a threaded plug on a spherical enclosure or a steel water bottle could produce pressure in excess of 10^8 Pa, I haven't considered what might limit that. Moving our shaky finger leftward on the phase diagram, we may discover ice Ih, hexagonal ice, the most well-known ice. Ice densities are listed farther down the page. In an enclosed environment, density will be unable to change. So, I'm guessing that hexagonal ice won't be what happens. I guess we'd get stuck on that phase transition line, as pressure rose.
The next ices up are ice 2 and ice 3, both of which have densities greater than that of water.
So the pressure of frozen ice might not ever rise above 10^9 Pa, mostly staying a little over 10^8 at most. I could be totally wrong. If I wanted to design an ice bomb that never exploded, I might make sure there were a structural part that failed before the pressure got too high, not really sure.
Man. I know very little about the strength of materials. If we want our water tower to not rupture when exposed to liquid nitrogen, how thick do the steel walls need to be? We could just make them hundreds of feet thick, would that be thick enough?
calculate burst pressure of a pipe: https://corrosionmaterials.com/technical/burst-pressure-calculator/ uses tensile strength of material, which can change over temperature. WARNING: SAFETY INFORMATION PRESENT IN THIS EMAIL
Meant to send this to the list. On 12/2/21, jdb10987@yahoo.com <jdb10987@yahoo.com> wrote:
What i described is actually a well-known scientific demonstration https://youtu.be/eLPBDPbwqmE
Cool, I watched without sound. Noting that it ruptures the thick steel grenade enclosure but doesn't harm the thin steel tin about an inch away. Noting that the grenade enclosure appears bomb-looking, and that it is a youtube video teaching a child how to make a bomb. Noting again that the bomb takes some time in a specialised environment to detonate, and does not harm anything except for itself.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Friday, December 3, 2021 1:09 AM, Karl <gmkarl@gmail.com> wrote:
... Noting again that the bomb takes some time in a specialised environment to detonate, and does not harm anything except for itself.
things human-kind can learn from the inert: "to harm only one's self, rather than others. ++" -----BEGIN PGP SIGNATURE----- iNUEAREKAH0WIQRBwSuMMH1+IZiqV4FlqEfnwrk4DAUCYa+uHl8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0NDFD MTJCOEMzMDdEN0UyMTk4QUE1NzgxNjVBODQ3RTdDMkI5MzgwQwAKCRBlqEfnwrk4 DG7GAPwMQXYiNPEbhFg1ib9m5yz5GKIdSamFMEqXr6L0wY+8pwD+POgtDE7yYKvS CsIXDykkVJVWKM7Ui41RFB19D6fjSf4= =o8R3 -----END PGP SIGNATURE-----
On Tue, Dec 7, 2021, 1:56 PM coderman <coderman@protonmail.com> wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Friday, December 3, 2021 1:09 AM, Karl <gmkarl@gmail.com> wrote:
... Noting again that the bomb takes some time in a specialised environment to detonate, and does not harm anything except for itself.
things human-kind can learn from the inert:
"to harm only one's self, rather than others. ++"
good stuff we all yearn for. where does harm come from, I wonder?
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On Wed, 8 Dec 2021 11:33:48 -0500 Karl <gmkarl@gmail.com> wrote:
On Tue, Dec 7, 2021, 1:56 PM coderman <coderman@protonmail.com> wrote:
"to harm only one's self, rather than others. ++"
good stuff we all yearn for. where does harm come from, I wonder?
it comes from US government turds like you karl and codermand of course - where else?
participants (4)
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coderman -
jdb10987＠yahoo.com -
Karl -
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