The Anti-Magnetic Mass Extinction
Вставка
- Опубліковано 26 бер 2024
- An exploration of the strange mineral bridgmanite, and how it could eventually shut down earth's magnetosphere in the far future and cause the greatest mass extinction earth has ever known.
My Patreon Page:
/ johnmichaelgodier
My Event Horizon Channel:
/ eventhorizonshow
Links:
"Radiative thermal conductivity of single-crystal bridgmanite at the core-mantle boundary with implications for thermal evolution of the Earth", Murakami et al., 2022
www.sciencedirect.com/science...
"Six ‘Must-Have’ Minerals for Life’s Emergence: Olivine, Pyrrhotite, Bridgmanite, Serpentine, Fougerite and Mackinawite", Russel and Ponce, 2020
www.mdpi.com/2075-1729/10/11/291
Music:
Intermission in D by Miguel Johnson
migueljohnson.bandcamp.com/
Cylinder Eight by Chris Zabriskie is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/...
Source: chriszabriskie.com/cylinders/ - Наука та технологія
JMG on an absolute heater lately
Knew I smelled something
I see what you did there 😉
Spittin that hot 🔥...
We love it when science kills us in epic fashion
In reality they cant
The earth started as a molten son so terraform venus
Another cheerful one tonight
frankly I'd like to see it all end before the Presidential campaigns heats up. I'm imagining Trump will be like the montage in "Waking Life" of Alex Jones ranting inside a prison cell. ua-cam.com/video/TfVU7Y73mmY/v-deo.html
Hey Rich what perfume you choose before extiction?
Another god got too close to the earth: olivine
@@cerveshredSAVAGE !
Yes, it's just what we've all been thinking about lately.
I love how you balance context and information, treating us like neither children nor scientists - every video perfectly understandable
Perfectly stated.
I couldn't have said it better myself.
So true...
May he never change.
This is why JMG is the juicer
I agree. I hate science influencers who talk like they're teaching kindergarteners. Most of them only tell you things you've already heard 1000 times. Maybe in the 90s, most of the adult population just didn't know anything, but today, anybody who is interested knows a great deal of the basics. We want to hear about new things, and it's always something new here.
As a geologist, this scenario would make sense, but one key fundamental thing has been left out. Subduction zones bring water into the asthenosphere/upper mantle. This lowers the melting temperature of the surrounding rock and thus, trigger partial melting of the upper mantle . It would take quite a bit to slow subduction zones to completely cease partial melting and therefore, the upper crust and asthenosphere becoming more solid and stop plate tectonics. I think the sun would burn us to a crisp before it reaches the red giant phase in its stellar evolution before plate tectonics completely stop. While earth is losing heat, it's not at the rate where within a billion years, it's going to slow down plate tectonics significantly enough where the geodynamo will be effected and its ability to generate a strong magnetic field to protect earth from the sun's stellar wind.
….huh?
@@Macattack7they're saying it's happening so slowly you will die from the sun's expansion before that happens.
Also worth noting is that Venus has an extremely weak magnetic field, is closer to the Sun where the solar wind is much stronger, yet has an atmosphere that is 93x denser than Earth's.
Even with no magnetic field at all, the Earth would not lose all its atmosphere, only a fraction of it. Higher concentrations of heavy gases, like carbon dioxide, could prevent any loss, even increase it.
This comment, very strangely, ignores the recently released paper that this video is literally based on
_BREAKING…_
NASA considering using JMG videos as novel propulsion method to reach nearby star systems.
"Only the sun can destroy all life on Earth"
World leaders: Sounds like a challenge, to me!
Well not only the sun, potentially a direct hit from a black hole of sufficient mass could do it. It might also be capable of pulling earth completely out of the Sol system.
Few other options but the probability of any of them is extremely low, the sun expanding eventually is guaranteed, unless we move earth out...😊
😂
World leaders: We don't care to hear about such nonsense!
World leaders: Don´t look at the sun. Just look at me.
Not leaders. Rulers.
Super cool. I can't wait. You'll see me in the parking lot afterwards. I'll have the tee shirts that read:
3 billion years of tortured evolution and all I got was this lousy core death.
That’s hilarious !
Hey John Thanks for being such a legendary creator
We dont understand earths magnetism anywhere near as much as we should...
And despite what scientists might try to appear to be to the contrary, we still know next to nothing about the true properties and make up of our own core, much less that of any other planetary body. Humans have not yet even managed to probe even a mile into the crust. So to hear scientists say that they authoritatively know about things that are literally thousands of miles deeper than that is pretty remarkable...not to mention almost unbelievable.
And i dont like you half as much as you deaerve.
Got me drifting into a restful slumber to descriptions of apocalyptic horrors
😂😂 nice
And I've been worrying about worldwide thermonuclear war. How insignificant!
lmao
honey I think it's time to accept that nuclear war was made up by rich people to let them to do bullshit things. name any other effect it's had that's provable.
Nuclear warfare, asteroid impacts, random black holes, interstellar meteorites, excess volcanism, gamma ray bursts, plagues, biological warfare, space junk, ayylmaos, the rise of the machines, all of this stuff we've been taught to worry about over the decades. Turns out instead, we've been worried about the wrong thing(s). We don't even have the remaining comfort of waiting 4-7 billion years, the nature of the universe being much more cynical and nuanced means the extinction clock is being brought forward to within 600 million years. Some humor of our creator to spawn us near the twilight hours of this world's lifecycle.
There will not be a nuclear war in our lifetime. Don’t live your life in fear. It’s not worth it friend.
No one outputs quality and quantity like JMG
At least not where we liiiiiiiiiiiive.
Preach! And I watch every single ONE!
He is amazing.
I think Theia has a huge role in why we still have a viable planet.
It mixed everything, trapped an enormous amount of extra heat down there, some bits and pieces are still boiling off (which actually might be the kickstarter for convection in the first place) and that all might have kept volcanism around for longer.
Still just a theory that many subscribe to, but there's no reason it would have hampered development of life instead of aiding it. Life certainly doesn't predate it.
Theia: a hypothesized ancient planet in the early Solar System which, according to the giant-impact hypothesis, collided with the early Earth around 4.5 billion years ago, with some of the resulting ejected debris coalescing to form the Moon. I don't think you should assume UA-cam knows wth it is. 😕👍
@@squirlmycertainly a stretch of the imagination. Weird how there's legends of a time before the moon was even there
@@squirlmywtf r u talking about
If you search “Giant-impact hypothesis” on Wikipedia you can read all the evidence for it. Far from being pure imagination, it’s currently the most accepted idea for the creation of the moon
@@wmpx34 I may have misread what he wrote, but I took him to mean, when he said "a hypothesis many subscribe to," that he was referring to the idea that Theia and its influence on Earth was necessary for life, not the impact itself being the hypothetical.
"Since the beginning of time man has yearned to destroy the sun." M. Burns
Dear John, I just wanted to state, that I really love your videos. I'm watching your videos for quite some years now and I really appreciate them. 🖖
I love your videos! They've been helping me wind down for the night for a long time
Man, I love this channel.
Happy Shiny People holding hands… just felt that line was needed after getting blindsided by the fact planetary geology could be ending life on earth prematurely….
Life will never end. It will just be smaller after us
Definitely a Spooky October episode.
Once again, extremely thought provoking and fascinating. Thank you so much for this content john.
had to look these minerals up, olivine and wadsleyite look badass
Super cool looking 👌🏼
Olivine found on the Moon already. What’s that telling us?
Oh boy, this one ought to be real uplifting...😂
The conditions for our kind of life are pretty damn specific. Even a planet like Earth can't maintain them for long.
'Wars can't end all life on earth' - don't say that so loud, they'll take it as a challenge.
It will be literal hell though
I love how you cited the two papers in this video.
0:19 Excellent insight as per usual Mr. Godier. You've have some interesting topics lately which have been very pleasant to listen to.
Thanks for the video, John! 😊
Stay safe there with your family! 🖖😊
I feel magnetized by JMG's top content. ^.^
I wish humans could get over our petty politics, the universe is so big and so much unknown who knows what we would find if we actually focused on space travel more and looked, great vid JMG!
Curses! That changing time-line has dashed all my planning.
Change it again by directing your conscious intention in another direction!
@@marktwain368 did you read "The Secret "?
Whew, another great episode! You always expand my thinking and research. Thanks JMG!
Thanks John another great installment 🏴❤️👍
Another great video! Thanks, John!
Well, what a ray of sunshine this topic was.
Ashes to ashes, bridgmanite to bridgmanite; one might suppose, it seems...
Titan could be neat for a different reason, too, when the sun heats up millions of years from now!
I love the rapid fire videos of late! Your channel is by far one of my all time favorites; interesting that I was introduced to your work via toldinstone, given his content is so much different!
I had been thinking on the same idea of Titan heating up for some time. I'm not sure how much warmer it'd get, but I reckon it'd be a fair bit more. Who knows, but I do know that if it gets warm enough we'd (if we were to see it) see it lose all of it's oceans/lakes.
This assumes that the magnetism & the heat dynamo are separate processes when in reality they are a closed loop process feeding off each other due to swirling electric currents in the outer core. Just studying the heat conductivity of 1 mineral isn’t enough to come to the conclusion that the core is losing heat faster than originally thought.
Very educational and interesting. High production value, great narration. Thanks professor!🙂🤖🤖🤖✨✨✨✨💨💨💨💨🤸🤸🤸🤸🤸🤺🤺🤺🤺🤺🤺🏂🏂🏂🏂🏂🏂💃💃💃🕺🕺🕺🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻
It's amazing how much I learn from John's videos.
What an amazing discovery! Thank you, JMG!!!
Crazy mad stuff and facts about the world on which we live from John Michael Godier nice one 👍
Don't you mean "liiiiiiiive"
Your voice and the way you explain stuff is very soothing. I can get smarter while i sleep 😎
Thanks John I always enjoy the videos. Really helps me wind down, unfortunately most of the time I fall asleep. But that's okay means I get to watch your videos more than once.
Darn, I forgot to take my bridgmanite infused multivitamin today...
JMG holds the akashic records to all human knowledge, and he dropped it one by one to entertain us, respect.
Damn this was a great listen!!!! Thanks 👍
Humanity can make an artificial magnetic field with a simple (but gigantic) coil around the equator. This pharaonic electromagnet could be powered with solar panels along it's path. Since half the earth is always illuminated, the coil will always be powered. Another design possible is to make a smaller electromagnet at L1 point.
I think JMG should have done some voiceover work for the Homeworld series of games.
Great and educational times at JMG high! ❤
I enjoy contemplating how future humans might be able to technologically modify bridgemanite in order to extend our lease on this planet
What a nice cheery episode this is !
Perfect for calming down to sleep
In the recent video game "Starfield" this happens to Earth and forces man to the stars to survive...it's called "The Great Sputtering" in the story. On another totally random note, the title of this video would make a great name for a heavy metal band/album. :)
Lead singer that sounds like the typical death metal band but mixes in references to crazy science facts
And either the band members or the songs named:
Olivine
Pyrrhotite
Bridgmanite
Serpentine
Fougerite
Mackinawite
Lovely news John
in which we liiiiiiiiiiiiive
It wakes me up every time
If the lack of bridgmanite necessarily excludes the possibility of abiogenesis and we find life anyway it can honestly go both ways in that our definition/expectations for the conditions in which abiogenesis can occur are wrong, or that panspermia is indeed viable. Honestly I'd expect panspermia to be quite viable from the deep biosphere and over geologic timescales evolving into more active surface dwelling life.
#Perfectionite as always. TY JMG!
I'm not a geologist by any stretch, but I strongly suspect that the Theia impact (and the resulting large moon) is why the Earth still has a magnetic field and plate tectonics.
This totally harshes my mellow.
What a streak lately, golden age after golden age for this channel
suspicious observers x JMG is the plug we need
Reminds me of a former Secretary of Defense & his recitation of "known unknowns" & "unknown unknowns." So here we have another previously-unknown factor that may figure into the ongoing _Killing Earth_ sweepstakes. (There's one for Bill O'Reilly!) I knew core cooling was potentially a long-term problem separate from the sun but had no idea of the timing. Seems we still don't know what that might be, but keeping our planet cool enough on the outside & warm enough on the inside look like projects for planetary engineers. Yes, they're pretty scarce in our solar system now, but a billion years should be enough time to find or create them.
Failing that, spreading terrestrial biology around could prove a decent backup plan.
We wouldn't even know if the sun grew on average over last year. The sun's "volume" is not directly measurable, and the photosphere's radius is also not measured in recent times, it is considered fixed at 696,340km with 0.5% anual variability depending on where Earth is in its orbit.
Volume is in quotes, because the solar system is a part of Sol, but its outer boundary is usually chosen as the photosphere, or the corona if it suits the astronomers. Very rarely somebody mentions the heliosphere, which we are inside of. Not that anything could observe the boundary layers of the heliosphere - we can't measure it in any way since Voyager (presumably) passed trough it.
Anyway, have fun with the eclipse, John!
Great...thank you. Carry on-
Thank you
We should work on the assumption that we only have 500 million years left.
So, chop, chop!
Let's get to it and colonize the galaxy!
Time's a wasting!
Should we not consider a 401K then I guess.
I see this an absolute win
Yes very spooky, thanks JMG.
Extinction is really gonna' suck,
especially when it comes sooner.
Write your will, man. It’s happening quite soon.
why do existential dread scenarios calm me and help me sleep? 😂
love this content
We need this now.
Spooky stuff indeed, great video man. Hope to see a video covering that binary star system thats suppose to get really bright soon! Much love man
“Spooky” only means somethin to me with total respect to Mr Einstein. Thank you for the oblique reference..
Thanks for reminding me I have bridge night tomorrow
Bid 3NT on every hand😂
yes!!! such a great fucking topic JMG! dude is my go to to listen to before bed and again when alert. thank you for your videos
Hey John, for some reason your videos are muted when auto-playing here on YT, so I can't watch them at work. Any chance you can fix that? Thanks, love the channel.
This video made me want to curl up catlike next to your growling drone voice and dream of the end of worlds. Then wake, stretch and scribble the lyrics of half forgotten songs I heard while visiting Venus before its death.
The Drake Equation misses so many terms that the answer to Fermi's Paradox is becoming a logical sum of them all: Magnesium, Phosphorus, Oxygen levels, double cell membrane, Eukaryotes, lipids, RNA, sex, multicellular complex organisms, moon tides, volcanism, the K-T mass extinction ... Jeez! There ar so many that if you sum that all it's amazing how rare is the chance that we are even here, let alone for this to happen again in another world - concomitantly to us (relatively in time). No way there are other intelligent tech beings out there at a reachable distance; I must add.
I do believe I've watched EVERY video you've released
Another amazing video thank you John!
Of course it’s fun to think about this stuff for SciFi.
By the way, I’m a retired paleomagnetist.
As Mike Tyson says: "It's the ones you don't see coming that really hurt."
Hey John can you do a video on the great attractor?
Listening to these videos brings home just how insignificant all our concerns are in the long run.It's sobering: indeed,it's frightening; but it's true.
So let's just try to enjoy what we have,whilst we have it.
Your usual fabulous program here is remarkable and insightful! What is curious is that the shifting magnetic poles and diminishing magnetosphere that we currently enjoy is front page news of real concern to space-watchers and armchair astronomers. How timely to see our JMG cite it as a likely cause of extinction. Regardless, the magnetic anomalies underway bear watching. Thanks, JMG.
JMG is my hero!
My man knew I was headed to bed, good lookin out yo~
this must mean our magnetosphere is temperature sensitive so we need the heat from the sun to delay the earths core and mantle cooling, which could be even faster were the earth to become a wandering planet without a star for example.
Share and get this UA-camr to half a million!
“... In which we liiiiiiive.”😂
Politicians have a solution: The Bridgemanite Tax - problem solved...
The college kids are already protesting for it!
@@ogrehaslayers605It's not like they can afford any so they're fine
Sometimes I feel like a steerage passenger on an Edwardian ocean liner... no lifeboat. Then I remember the SS Eastland. Damned if you do, damned if you don't I guess. In this regard mortality is quite comforting: not my problem.
More good news, outstanding.
New sub here like your content
Death is frightening but extinction is violently depressing
Another thing we can’t possibly do a thing about- rather like death. And like death, since it’s unalterable and inescapable, it tends to lose all its significance.
it would be nice to hear more about these minerals. Why and how are they needed for abiogenesis?
in other words: Which step cannot happen without them?
Thanks
Would the solvent be required to have the same thermal expansion & inverse density / temp properties as water to generate life?
There has to still be mantle dynamics on venus to still be volcanic activity. Assuming venus is approximately the same age as earth, it would have cooled to just a lump of rock by now unless something is creating or driving the heat dynamics. At least that's the way it would seem to an aircraft technician.
So nice to have intelligent content on uTube.