[HN Gopher] Record lifetime for a bubble
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Record lifetime for a bubble
Author : clouddrover
Score : 44 points
Date : 2022-01-24 12:52 UTC (2 days ago)
(HTM) web link (physics.aps.org)
(TXT) w3m dump (physics.aps.org)
| olalonde wrote:
| Not going to lie, I was expecting another Bitcoin bashing
| article.
| scarmig wrote:
| Not going to lie, I was hoping for one.
|
| But pleasantly surprised and happier that it's something
| interesting!
| chasd00 wrote:
| but this time it's different, for the gas marbles referenced in
| the article i mean.
| FlacoJones wrote:
| I clicked this thinking it was referring to crypto
| jppope wrote:
| I totally thought this was going to be a financial article...
| awinter-py wrote:
| the linked 'gas marble' article is good too, in particular the
| construction method for the marbles
|
| > Timounay found that if the frame was wide enough and the
| microspheres were at least several hundred micrometers in
| diameter, then lifting the frame generated a gas marble. During
| lifting, the film on the frame would spontaneously fold in on
| itself and detach to form a gas marble that would drop to the
| liquid surface below. "The full mechanism of gas-marble creation
| is not fully understood for the moment, but their creation is
| reproducible,"
| arberx wrote:
| An analogy perhaps to our current market conditions?
| ppg677 wrote:
| Figured the title was referring to the stock market.
| shakezula wrote:
| Same, I definitely clicked expecting doom and gloom financial
| predictions, not soap bubbles that lived for a year (as
| interesting as that is)
| aerodog wrote:
| ditto!
| tdhz77 wrote:
| Same, I guess we could take bets on which bubble will last
| longer. This or Tesla stock.
| linuxlizard wrote:
| But this time is different!
| Kalanos wrote:
| maybe it could be used in atmospheric carbon capture?
| ncmncm wrote:
| We already know how best to capture atmospheric carbon.
|
| The ocean, all 65M km^2 of it, is already capturing atmospheric
| carbon. This would be good, except that it is also making the
| top layer of the ocean acidic, which threatens to kill the
| whole damn ocean ecosystem; and the top layer is getting
| saturated, so not capturing as much.
|
| So, the solution is to pump surface water down deep, where
| there is more capacity and where it can do less harm. Maybe
| pump deep water to the surface, too, so that water not already
| saturated with carbon can better absorb it; and maybe deliver
| that to reefs, which need it. You can float wind turbines on
| buoys in deep water, and pay for them with carbon credits.
|
| Of course this does no good at all unless you _also_ stop
| piling more carbon into the atmosphere. But you can start doing
| it before that, and then get increasing benefit after.
| Kalanos wrote:
| isn't bottom of ocean == bottom of food chain? the whole
| system could collapse
| micromacrofoot wrote:
| I encourage you to get some bubble solution and just stop to
| admire bubbles for a little bit... even if you understand the
| physics of the whole thing, they feel a little like magic. Watch
| how the air flows in the room, blow some on a warm day and see
| how far the breeze takes them.
| flycaliguy wrote:
| And get some guar gum to really get them massive! So many
| summer days spent with my friends making bubbles while my kids
| chase them.
| gilleain wrote:
| I also find that if you put the solution in your hands, at the
| right concentration, and then form an oval with your thumbs and
| forefingers, you can blow very large bubbles.
|
| You have to start slowly, until a large curve forms, then
| expand the bubble until it can bud off as complete. Also it can
| help with a small amount of spit! :)
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(page generated 2022-01-26 23:02 UTC)