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one of the odd paradoxes of the solubility of carbon dioxide in water (and all dissolved gases) is that cold water dissolves more gas (and under higher pressure, also) when cold. when boiling, all gas is driven out.

you can see this in action by making two separate ice cubes. one you make with regular tap water, the other, you boil the water first, before putting it in the freezer (obviously, let it cool a bit).

if you ever wondered how ritzy bars have those fancy translucent clear ice, that's what it is. the fog of bubbles inside non-boiled water frozen to ice is the air, separated from the water but trapped inside the ice.

ᴛʜᴇ ᴅᴇᴀᴛʜ ᴏꜰ ᴍʟᴇᴋᴜ 1mo ago

oh yeah, another odd and interesting thing about water and gas solubility, is that water that has had the air driven out of it by boiling, increases its soap-like properties and notably can be used to make suspensions of oily substances in water. i think the substance has to be liquid or at least viscous and liquidy at room temperature for this to work (as the floating layer will cool down faster and aggregate at the top if it is solid at the temperature).

i remember seeing some science news story about this back around 1998 or so. not sure if or where this trick is used to make oily drug substances injectable but it can do this. could also be used to make an oily substance work as a nasal spray. the movie Nirvana (italian cyberpunk starring Christopher Lambert) features him ingesting "liquid marijuana" through a speculum looking injecty device that sprays it up his nose.

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ᴛʜᴇ ᴅᴇᴀᴛʜ ᴏꜰ ᴍʟᴇᴋᴜ 1mo ago

yeah, that was the thing. they figured out that why oil and water don't mix, is actually because of an air layer that forms on the boundary of the oil. when there is no air in the water, this is absent and voila.

YODL 1mo ago

I love water science. Have you seen Feynman talk about surface tension? It's a great clip. Master of making complex science feel accessible

ᴛʜᴇ ᴅᴇᴀᴛʜ ᴏꜰ ᴍʟᴇᴋᴜ 1mo ago

i have a theory about gravity that it's mediated by a special configuration of electrons acting as a cloud extending beyond the edge of matter, that when two bodies clouds touch, it creates that same effect like two drops merging into a single, same volume. except the cloud is invisible and all you see is the solid matter moving together.

haven't been able to figure out anything concrete beyond the idea that a tesla coil and resonator of some kind could gather and focus electrons into this special configuration and by this, nullify gravity.

you would also obviously know about Victor Schauberger. the phenomenon of water surface tension and the magic it can do is tantalising. you may also know of devices that use water's surface tension to mechanically break it into hydrogen and oxygen or something, an implosion effect, that can be used like back to front ICE.