All Questions
54
questions
12
votes
3
answers
3k
views
Can water at absolute zero still be liquid?
We see this interesting phenomenon with water bottles in cold chillers left undisturbed for a long time; the water within remains a liquid, but a small kinetic shock, such as a tap, shake or pour, ...
- 461
1
vote
1
answer
4k
views
At what temperature does flowing water start to freeze?
We know that flowing water remains liquid even in the below-zero temperatures (a good example is rivers in arctic regions). Of course water doesn't remain liquid forever if temperature goes down ...
- 402
0
votes
0
answers
35
views
How can water expand as it cools and freezes? [duplicate]
It's well-known that water expands when it freezes to form ice, and perhaps less well-known to the common person that it actually begins expanding while still in liquid form when the temperature drops ...
- 101
0
votes
2
answers
151
views
For liquids where the solid doesn’t float, how does the liquid freeze?
Take for example water; when water freezes, ice floats, and given a pond or something during the winter, the pond seems to freeze from the top down.
Considering a similar circumstance, let’s say we ...
- 157
4
votes
0
answers
48
views
River freezing conditions
Quite uncommon -8°C here in Hamburg at the moment I write, and I thought: Surely our local rivulet is frozen over. In retrospect this was silly, the "rivulet" is 3rd order and has a very ...
- 233
6
votes
1
answer
685
views
What’s the intuition behind snowflake symmetry? [duplicate]
What’s a more rigorous description of why snowflakes are so symmetric?
The general explanations of why they’re symmetrical are:
Theyre not. The branches actually vary.
Snowflakes are somewhat ...
- 3,365
59
votes
4
answers
13k
views
How strong is the force of ice expanding when freezing?
Why does water contract on melting whereas gold, lead, etc. expand on melting? reminded me about something I've been wondering myself for some time.
We know that water expands as it freezes. The force ...
- 3,101
1
vote
1
answer
53
views
Frozen dew explanation
First, look at this picture:
This is frozen dew/rain, it was cold this morning and it might have rained during the night but that's not really relevant I think.
Here are my questions:
Why is the ...
- 135
2
votes
2
answers
491
views
Froze or freeze bottle Exploding
I kept a bottle in my freezer with full water overnight. When my mom took it out and put it in normal condition, it blasted after a few minutes. More surprisingly the bottle was made of aluminum. Pls, ...
0
votes
1
answer
60
views
How could you make realistic Frostwalker boots? [closed]
In Minecraft, as you might know, you can enchant boots with Frostwalker, which freezes water as you walk over it. I've been wondering if this would be possible in real life, and if so, how?
My idea is ...
- 11
0
votes
4
answers
417
views
Can water in solid state (ice) be at such a low temperature that in contact with liquid water at 0, freezes it and leaves it at a lower than zero C°?
I recently had a discussion with a bio engineer and we are both pretty convinced of different outcomes for the same situation:
Say you have a glass half full of liquid water at 0°, could you get a ...
- 101
0
votes
2
answers
84
views
What happens as water gets infinitely close to freezing?
Say, for the purposes of conjecture, that you have the necessary handwavium to uniformly cool it to any temperature you want, and decide to cool the water down to a temperature infinitely close to $0°$...
- 109
19
votes
4
answers
4k
views
Freezing water: in layers or all at once?
(First question here on physics, hope it is OK)
Since it is getting cold here in Berlin, Germany and temperatures are falling below the freezing point, we want to make a little ice rink in our back ...
- 301
0
votes
1
answer
133
views
Why can you find running water lower than $0^\circ \text{C}$?
I was looking at the phase diagram for water:
It seems there is not much of a region on the diagram at which you can be in the liquid phase, for temperatures lower than $0^\circ \text{C}$. I am ...
- 1,525
0
votes
1
answer
231
views
What happens if water is prevented from freezing due to pressure; where does the energy go?
Say you have an iron (or whatever strong material) ball filled with water, and you leave it in a frozen environment (say $-100\ \mathrm{^\circ C}$); once it gets cold enough, the water will want to ...
- 115