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mrpopo 7 minutes ago [-]
Divest from any kind of S&P500 or cool tech stocks. Invest in renewable energy projects. The US government is failing you, only money talks.
atbpaca 15 hours ago [-]
Beautiful and scary at the same time. Almost like the iceberg was a planet on its own with mountains, valleys, crevices. Then everything goes haywire. The fall of a majestic titan. The destruction of a world.
baubino 14 hours ago [-]
There’s also something very organic about it. I had to keep reminding myself that it’s “just ice” and not a living being.
dotancohen 13 hours ago [-]
Especially the spine. If you had shown me a portion of the video with that thing moving as such, I would have believed it to be some leviathan.
Which brings us to the video itself - horrible. Presumably the original sound was recorded, because we hear it under the music. Just let us hear the sound! The people watching this video are people who appreciate nature, not people who need a dramatic soundtrack to be entertained.
And what is with changing the speed of the video every 60 seconds? Either show it at real speed, or speed it up, but not both intermittently! At first I thought there was an issue with the video playback hanging.
I would absolutely love to watch the original, unedited source.
artine 13 hours ago [-]
> I would absolutely love to watch the original, unedited source.
Massive appreciation for whoever adjusted the position of the camera at 7:23 (3:18 in video)
raphinou 15 hours ago [-]
I would have thought it would generate enormous wave, but that's clearly not the case. I think some of the biggest waves was generated by a mountain sliding or collapsing in the sea. I expected something similar here. Anyone know why not?
GuB-42 15 hours ago [-]
It is not a very energetic event for its size. The iceberg is floating, it can't accumulate a lot of potential energy before flipping, so when it happens, there is not enough to make big waves. The center of gravity of the iceberg barely moves.
A mountain sliding into the sea is different, these higher up rocks have a lot of potential energy, that convert into kinetic energy as they fall, which is transferred to the water as they splash down, making big waves.
tlavoie 7 hours ago [-]
Here's an excellent example of the latter, from a short ways up the BC coast from me. Not caught on film, but found later by heli pilots, and on seismic data: https://hakai.org/stories/the-big-slide
cucumber3732842 15 hours ago [-]
The amount of water actually being displaced isn't changing much, it's just kind of rearranging around where is water and where is ice.
javier2 15 hours ago [-]
i suppose its not actually displacing a lot of water volume, unlike a landslide.
staplers 15 hours ago [-]
All its mass is already on the water so it's not displacing anything. It probably made some splashes but it seems like a fairly round object rotating rather than smashing into anything
dist-epoch 15 hours ago [-]
Maybe because ice floats, and it's almost the same density as water?
I'd have assumed it would be colder and more compacted (being toward the bottom and further under water), and therefore harder.
amszmidt 14 hours ago [-]
How cold is cold? :-)
Water below ”sea” level tends to stay around -1C (salt water) to 4C. Below that, water becomes ice…
Ambient temperature can drop to -40C … internally these ice blocks hoover around -10C.
FromHoiPolloi 15 hours ago [-]
My take would be that underwater temps cannot get below freezing. So the surrounding temperatures above water can be lower than under water.
Pooge 14 hours ago [-]
> My take would be that underwater temps cannot get below freezing
Yep, density of water changes with temperature—it's the only thing that has that phenomenon—and therefore the colder water is always at the surface. That's actually what made life possible since life could survive despite a frozen surface.
Happy to be proven wrong, but that's what I learnt making cocktails and investigating clear ice :)
dotancohen 13 hours ago [-]
Lots of things change density when temperature changes. Water is unique that below 4°C, it gets less dense as it cools - and that trend continues even through the phase change. That's why, as you mention, ice floats, and the surface freezes first, and fish can live below a frozen surface.
Pooge 13 hours ago [-]
> it gets less dense as it cools
Right!! Thanks for correcting me.
nh23423fefe 15 hours ago [-]
plus thermal conductivity of water vs atmosphere
mrloopex 14 hours ago [-]
Freezing point of water changes with salinity and impurities. By definition a liquid cannot be below its freezing point until it has completed its phase change.
RetroTechie 12 hours ago [-]
> By definition a liquid cannot be below its freezing point until it has completed its phase change.
Supercooled water is a thing: (and I've seen it a few times myself)
Superheating, too, and that's something that can happen in a microwave, occasionally causing severe burns when superheated water flash boils. AFAIU, it's the same phenomenon--lack of nucleation sites to kick-off the phase transition.
mrloopex 8 hours ago [-]
Does that mean every TTT diagram is wrong?
Nevermind I just learned about CCT diagrams. I guess having only one year of materials engineering means I should STFU. :)
FromHoiPolloi 14 hours ago [-]
Yes. My point was that it's easier(?) to get below freezing point above water than below. So while the cold air keeps the upper part of the iceberg (relatively) intact - it will slowly melt below the sea until the center of gravity changes enough to flip over.
eamag 15 hours ago [-]
Crazy how the most liked comment under the video as of now discusses AI video generation
saalweachter 13 hours ago [-]
The music also gets talked about quite a bit.
My immediate reaction to a "what is with this loud music, I can barely hear the actual audio" comment on YouTube was to assume the channel was afraid of being copystruck by the iceberg's lawyers.
maxlin 15 hours ago [-]
Especially as physics-oriented and long videos are exactly the kinds that are easiest to figure if they're AI.
Artificial Intelligence isn't the issue. Natural Stupidity is.
hk__2 15 hours ago [-]
I felt like watching a big animal moving
troyvit 14 hours ago [-]
Yeah there were parts that were so organic it looked alive. I was imagining the folks at Toho taking detailed notes.
xnx 14 hours ago [-]
Anyone who enjoys that video (I did!) should watch the largest glacier calving ever recorded: https://youtu.be/hC3VTgIPoGU
It stops first? Maybe the bottom hit the seafloor?
dotancohen 13 hours ago [-]
That's what I thought too. The sudden stop is actually two phenomenon compounded. One, the mountain of ice contacts bottom. Two, the video speed changes from ~8x to 1x.
readthenotes1 15 hours ago [-]
One of the comments said just that. "Grounded near disko bay" iirc.
Another comment said that icebergs melt blow water faster than in the air and that flipping is a fairly common thing to do because the center of gravity changes.
maxbond 15 hours ago [-]
You can see bathtub rings on the underside as it's lifted up. The rings are caused by it's melting faster under the water than in the air, so there's a discontinuity at the waterline.
Jeremy1026 12 hours ago [-]
Nice of the iceberg to float into frame before decided to do it's gymnastics routine.
ilamont 12 hours ago [-]
Can more experienced people describe how to verify this video as non-AI generated? Is there a scientific source in Greenland or Denmark that tracks such incidents? Or could satellite passes before vs after confirm what happened?
LeoPanthera 12 hours ago [-]
It is the work of but a moment to check for trustworthy sources. It's sad that this skill seems to have been lost.
4:40, so this is where people came up with the idea for Godzilla.
tristramb 12 hours ago [-]
Reminds me of a 'mimoid' from Stanisław Lem's Solaris.
jcranmer 15 hours ago [-]
Honestly, my first thought watching this video is "I want a root beer float." Something in the way the icefalls as the iceberg is flipping over just makes me think of that...
csnizik 15 hours ago [-]
Structural review clearly got skipped. Somebody is losing their job over this.
13 hours ago [-]
moffkalast 10 hours ago [-]
Gotta say, I haven't seen anything this jawdropping in a long while.
catlikesshrimp 16 hours ago [-]
I would have described flipping it over before collapsing. The title seems a clickbait, but is no quite that.
Keep in mind that most of the iceberg is off camera, as shown during the first minutes. It lost 80% or 90% of its total mass but most of it isn't seen until the end, when the iceberg goes back to the right.
maxlin 15 hours ago [-]
now that's epic!
programmertote 15 hours ago [-]
[flagged]
margalabargala 15 hours ago [-]
Glaciers have been calving huge icebergs into the sea for as long as glaciers have met ocean. Those icebergs eventually melt and collapse just like this.
Rising temps contribute to the rate at which icebergs are produced and the speed at which they melt, but there's nothing in this video in particular that wouldn't have happened 200 years ago aside from the motorboat going by at the beginning.
blondie9x 15 hours ago [-]
[dead]
Espressosaurus 15 hours ago [-]
Look at the glacial retreat around the mouth of the fjord (which is why tourists go to the town) and yeah, the amount of change is insane.
Any particular iceberg isn't that interesting, but the source! That’s the sad part.
rlam2x51 15 hours ago [-]
I was expecting more waves. I am wondering if this video was AI generated. I hate that it is so hard to trust your eyes nowadays…
Edit: Did a quick background check, video seems legit.
Which brings us to the video itself - horrible. Presumably the original sound was recorded, because we hear it under the music. Just let us hear the sound! The people watching this video are people who appreciate nature, not people who need a dramatic soundtrack to be entertained.
And what is with changing the speed of the video every 60 seconds? Either show it at real speed, or speed it up, but not both intermittently! At first I thought there was an issue with the video playback hanging.
I would absolutely love to watch the original, unedited source.
From the linked video's info: https://www.youtube.com/watch?v=CJ5PhjFYRSo
A mountain sliding into the sea is different, these higher up rocks have a lot of potential energy, that convert into kinetic energy as they fall, which is transferred to the water as they splash down, making big waves.
I'd have assumed it would be colder and more compacted (being toward the bottom and further under water), and therefore harder.
Water below ”sea” level tends to stay around -1C (salt water) to 4C. Below that, water becomes ice…
Ambient temperature can drop to -40C … internally these ice blocks hoover around -10C.
Yep, density of water changes with temperature—it's the only thing that has that phenomenon—and therefore the colder water is always at the surface. That's actually what made life possible since life could survive despite a frozen surface.
Happy to be proven wrong, but that's what I learnt making cocktails and investigating clear ice :)
Right!! Thanks for correcting me.
Supercooled water is a thing: (and I've seen it a few times myself)
https://en.wikipedia.org/wiki/Supercooling
Nevermind I just learned about CCT diagrams. I guess having only one year of materials engineering means I should STFU. :)
My immediate reaction to a "what is with this loud music, I can barely hear the actual audio" comment on YouTube was to assume the channel was afraid of being copystruck by the iceberg's lawyers.
Artificial Intelligence isn't the issue. Natural Stupidity is.
First seen https://news.ycombinator.com/item?id=26201160
Another comment said that icebergs melt blow water faster than in the air and that flipping is a fairly common thing to do because the center of gravity changes.
https://eu-space.europa.eu/components/earth-observation-cope...
https://www.bbc.com/news/videos/cdx7lg950gdo
Rising temps contribute to the rate at which icebergs are produced and the speed at which they melt, but there's nothing in this video in particular that wouldn't have happened 200 years ago aside from the motorboat going by at the beginning.
Any particular iceberg isn't that interesting, but the source! That’s the sad part.
Edit: Did a quick background check, video seems legit.