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[Arx]

Water is a polar molecule, which means the two hydrogen atoms have a positive charge and the oxygen a negative, so the molecules tend to orientate themselves a particular way with respect to each other. In the liquid state, that's not enough to matter, but in solid form, the hydrogen bonds are strong enough that the molecules are forced into a crystal lattice. That lattice has more empty space in it than liquid water does.

It's a fairly rare quality that's probably not unique to water, but isn't very intuitive.

[Rowanas]

Water is a polar molecule, which means the two hydrogen atoms have a positive charge and the oxygen a negative, so the molecules tend to orientate themselves a particular way with respect to each other. In the liquid state, that's not enough to matter, but in solid form, the hydrogen bonds are strong enough that the molecules are forced into a crystal lattice. That lattice has more empty space in it than liquid water does.

It's a fairly rare quality that's probably not unique to water, but isn't very intuitive.

Hence why it grows when frozen, instead of shrinking.

[hops]

Water is a polar molecule, which means the two hydrogen atoms have a positive charge and the oxygen a negative, so the molecules tend to orientate themselves a particular way with respect to each other. In the liquid state, that's not enough to matter, but in solid form, the hydrogen bonds are strong enough that the molecules are forced into a crystal lattice. That lattice has more empty space in it than liquid water does.

It's a fairly rare quality that's probably not unique to water, but isn't very intuitive.

There are solid phases of water that are denser than the liquid, but most of them don't occur naturally. The only exception can be seen when a Starbucks barista is ordered to put the ice on the bottom of the cup.

[Leodanny]

A coffee is natural? Wouldn’t that be man-made? Jk, nice joke.

[scriver]

Regardless, land rising when glaciers go away is a well established phenomena. Scandinavia for example has risen a lot since the end of the last ice age and is in fact still rising because of it.

[hops]

Regardless, land rising when glaciers go away is a well established phenomena. Scandinavia for example has risen a lot since the end of the last ice age and is in fact still rising because of it.

How do you know they didn't have bewitched dense ice?

[Trekkin]

Incidentally, Ices III and IX are actually denser than water; that it expands when freezing depends on how open a crystal structure it freezes into.

(And, since some idiot always brings this up: no, ice IX does not act as a seed crystal in room-temperature water, it will not destroy all life on earth, and no one thinks references to Cat's Cradle are clever.)

[Kagus]

Also worth noting that ice made from heavy water does in fact sink when placed in normal water, due to its greater density.

[Il Palazzo]

Continuing this interesting conversation, it is worth noting that anything that happens to have ice in its name that isn't what people generally refer to when they mention just 'ice', is likely different than ice because that's what makes it not ice. It's true.

[Kagus]

Continuing this interesting conversation, it is worth noting that anything that happens to have ice in its name that isn't what people generally refer to when they mention just 'ice', is likely different than ice because that's what makes it not ice. It's true.

Oh fuck, what's shaved ice made from then? Should I see a doctor?

[Il Palazzo]

It's made from shaves. Duh. Hasn't your barber taught you anything?

[Rolan7]

Incidentally, Ices III and IX are actually denser than water; that it expands when freezing depends on how open a crystal structure it freezes into.

(And, since some idiot always brings this up: no, ice IX does not act as a seed crystal in room-temperature water, it will not destroy all life on earth, and no one thinks references to Cat's Cradle are clever.)

Well... I was going to have thought that it was clever...  Well played.

[WealthyRadish]

Incidentally, Ices III and IX are actually denser than water; that it expands when freezing depends on how open a crystal structure it freezes into.

(And, since some idiot always brings this up: no, ice IX does not act as a seed crystal in room-temperature water, it will not destroy all life on earth, and no one thinks references to Cat's Cradle are clever.)

Well... I was going to have thought that it was clever...  Well played.

I'd disagree, I think essentially all references are some positive non-zero amount of clever (even those referencing things that have become cliches). In fact, I might be more specific and say that the cleverness of a reference increases the more obscure it is, but has a value of zero (or perhaps negative) if it isn't understood by the intended reader at all. Since Cat's Cradle isn't ubiquitous enough to be cliched, has relatively high obscurity in the general population, but also likely has a relatively high proportion of readers that would get it in this particular place, I would say the reference's aggregate or mean cleverness over this thread's readers would reasonably exceed the acceptable minimum.

[Imic]

What would be the reaction and response if I made a historical architecture thread?

[TD1]

Interest from me. A definite PTW, though further interaction is not necessarily assured.