Gottem. :)

Comments

• deaf_fish@lemm.ee ⁨8⁩ ⁨hours⁩ ago

  Teacher: I meant the global we. So it would average out to 8 minutes.

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  • mexicancartel@lemmy.dbzer0.com ⁨8⁩ ⁨hours⁩ ago

    Someone at day will inform sun is missing to the people on night

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    • deaf_fish@lemm.ee ⁨2⁩ ⁨hours⁩ ago

      A person can’t inform others faster than the speed of light.

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• Simulation6@sopuli.xyz ⁨6⁩ ⁨hours⁩ ago

  What about gravity? I know I read something about this once, but is gravity also limited to the speed of light?

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  • Valmond@lemmy.world ⁨2⁩ ⁨hours⁩ ago

    Yeah, we’ll feel it after 8 minutes all right :-)

    Gravity travels at the speed of light.

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  • WanakaTree@lemm.ee ⁨6⁩ ⁨hours⁩ ago

    Yep, it is. We’d stay in our orbit of the sun for 8 minutes after it vanished too

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  • colmear@discuss.tchncs.de ⁨2⁩ ⁨hours⁩ ago

    From what I know, particles that have a mass greater than 0 move below the speed of light and can never reach it. Particles that have no mass (every force is transferred via particles) move at the speed of light. So there is no way to have anything that is faster than the speed of light, not even forces.

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• jjagaimo@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

  But not by much longer. People on the other side of the world or connected to satellites monitoring sunspots would notice pretty much immediately after the light ceases to reach the earth

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  • ILikeBoobies@lemmy.ca ⁨8⁩ ⁨hours⁩ ago

    Only if you believe in magic box or “radio”

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  • 5too@lemmy.world ⁨1⁩ ⁨day⁩ ago

    And even if you’re not connected at the moment, the moon will go dark.

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    • LovableSidekick@lemmy.world ⁨23⁩ ⁨hours⁩ ago

      Good one! If the moon isn’t visible and you were just sitting outside say at midnight, I wonder if you would notice anything different.

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  • affiliate@lemmy.world ⁨1⁩ ⁨day⁩ ago

    yeah but everybody else would be sleeping so it would still take longer

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  • LovableSidekick@lemmy.world ⁨23⁩ ⁨hours⁩ ago

    Most of us sleep at night and don’t check our info-hose feeds until we wake up.

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    • IDKWhatUsernametoPutHereLolol@lemmy.dbzer0.com ⁨19⁩ ⁨hours⁩ ago

      What’s sleep?

      looks at time that says 23:27

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  • Galapagon@sh.itjust.works ⁨18⁩ ⁨hours⁩ ago

    No dude, it’s only a difference of 1.3 seconds, faster then the Internet unfortunately.

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    • teije9@lemmy.blahaj.zone ⁨7⁩ ⁨hours⁩ ago

      the other side of the world wouldn’t notice there suddenly being no light anymore if there wasn’t light in the first place.

      they would notice that the moon disappeared though

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  • M137@lemmy.world ⁨22⁩ ⁨hours⁩ ago

    Ok, first thing, did you not understand the image is a joke? Secondly, you have failed so badly at trying to use logic. And you’d notice it everywhere on the earth, both because of the moon and also just light scattering, it would become darker than ever before. And as said, most people would be asleep on the dark side, which is obvious. And it’s not like the astronomers etc. have some kind of worldwide siren to get everyone’s attention, most people wouldn’t notice it for a while, even if they posted about it online.

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• Hupf@feddit.org ⁨17⁩ ⁨hours⁩ ago

  xkcd.com/1391/

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  • lord_ryvan@ttrpg.network ⁨7⁩ ⁨hours⁩ ago

    That’s a good way to infinite wishes.

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• humanspiral@lemmy.ca ⁨7⁩ ⁨hours⁩ ago

  I believe we’d still be warm for those 8 minutes. We have an 8 minute grace period before having to do anything, then enough time to add sweaters faster than earth cools.

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  • Naz@sh.itjust.works ⁨6⁩ ⁨hours⁩ ago

    I was forced to calculate the black body temperature and radiation for the Earth, back in college by hand.

    I decided for fun to zero out the sun from the equation to see what would happen.

    My math came out to about -32°C average surface temperature.

    Earth would become an ice planet.

    I think you’d uh, need a bit more than a sweater in those conditions 😅

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    • meliaesc@lemmy.world ⁨4⁩ ⁨hours⁩ ago

      People live in those temperatures in places like remote Russia, right?

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    • humanspiral@lemmy.ca ⁨6⁩ ⁨hours⁩ ago

      It’s sweaters all the way down. You have time to order from China shipped by boat before -32C happens. You’re just being a “save the sun” hippy climate alarmist /s

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    • prettybunnys@sh.itjust.works ⁨5⁩ ⁨hours⁩ ago

      So.

      The Antarctic. Roughly. Everywhere. Including the equator cuz that’s not a thing anymore.

      Are there any places that would be “warm” for any reason if you recall?

      Like, I assume the oceans would survive until the core stops and the planet truly dies?

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  • teije9@lemmy.blahaj.zone ⁨7⁩ ⁨hours⁩ ago

    it’s because light takes 8 minutes to get from the sun to us. and since gravity also travels at the speed of light our orbit would only change after 8 minutes.

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• burgersc12@mander.xyz ⁨1⁩ ⁨day⁩ ago

  Wouldn’t the planet rapidly start to cool? I think we’d be dead by morning

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  • Psythik@lemmy.world ⁨1⁩ ⁨day⁩ ago

    The core is still hot. If we bury ourselves deep underground, there is a chance the humanity could survive for thousands of years without a sun. If not humanity, then some sort of life will survive long enough for future archeologists to find it millions of years later.

    But don’t quite me on this; I’m simply reciting from memory something I read in National Geographic or a similar publication 10-20 years ago. IDK how true this actually is.

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    • LovableSidekick@lemmy.world ⁨22⁩ ⁨hours⁩ ago

      We would need enough advance notice to prepare for massively farming mushrooms or something underground to eat. Canned food will run out in a few years, even military MREs have a shelf life. A few lucky people might survive a generation, but there’s a minimal breeding stock requirement to avoid degeneration from inbreeding. Extremely long odds, I think the human race would only survive this event in a sci-fi fantasy story.

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    • JustAnotherKay@lemmy.world ⁨23⁩ ⁨hours⁩ ago

      If we bury ourselves deep

      Fuck you I’m going underground

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    • burgersc12@mander.xyz ⁨1⁩ ⁨day⁩ ago

      Yeah, something will live, but I was more thinking surface life.

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  • rockerface@lemm.ee ⁨1⁩ ⁨day⁩ ago

    Atmosphere would hold the heat for a bit, the real issues will begin with food shortages because the crops won’t grow

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    • bobs_monkey@lemm.ee ⁨1⁩ ⁨day⁩ ago

      Yeah but how long is a bit? Also, without the gravity center of our solar system, how long would it take for all the planets to start drifting off into the void?

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  • philthi@lemmy.world ⁨1⁩ ⁨day⁩ ago

    Doesn’t the earth itself provide a significant amount of heat from the core? I’m sure I read somewhere that for something like every 10 meters down you dig, the temperature raises by 1° celcius. So maybe we’d not notice a temperature drop so quickly?

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    • rockerface@lemm.ee ⁨1⁩ ⁨day⁩ ago

      The surface would eventually freeze over. But some life would almost definitely survive deep underground and underwater, near geothermal vents not unlike those that hosted the first lifeforms on Earth. And, maybe, in some billions or trillions of years, Earth would stray near another star system, get captured by its gravity and slowly thaw out, restarting the evolution of life.

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    • burgersc12@mander.xyz ⁨1⁩ ⁨day⁩ ago

      Not sure how quick exactly, but the earth doesn’t provide enough heat, not even close. I think Kurzgesagt has a video on this subject, pretty sure without the trillions of joules of energy showering the earth every second we’d get awfully cold awfully quick

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  • potustheplant@feddit.nl ⁨1⁩ ⁨day⁩ ago

    The moon also doesn’t emit it’s own light. It would take longer for the moon to “disappear” than it would for the sun but it wouldn’t be the whole night.

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    • philthi@lemmy.world ⁨1⁩ ⁨day⁩ ago

      I agree with you, but also… I’m not sure that I’d notice that I could see the moon a few minutes ago and now I can’t (unless I happened to be looking at it as it happened)… I feel like that is something that could be happening every single night and I’ve never noticed.

      The sun disappearing is like… Super noticeable by comparison.

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    • 5too@lemmy.world ⁨1⁩ ⁨day⁩ ago

      The moon is just a few light-seconds away from earth; that’s why they could have conversations with ground control during the moon landings. Moon will go dark a few seconds after the sun.

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  • LovableSidekick@lemmy.world ⁨22⁩ ⁨hours⁩ ago

    Wherever you live on the Earth’s surface starts cooling every time the sun goes down, and gets warmed up again the next day. It wouldn’t cool any faster if the sun went away, it would just keep cooling at the same rate until the surface eventually froze.

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    • burgersc12@mander.xyz ⁨19⁩ ⁨hours⁩ ago

      Yeah, but that’s with petawatts being blasted on the other side of the earth, wouldn’t the loss of that make the whole system cool down faster, including the side the sun doesn’t touch? I’m thinking it’d be like having food on a hot plate, bottom is very hot, the top is less hot. But if you take the food off the plate the whole thing rapidly goes to room temp. I honestly have no idea, just conjecture tbh.

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  • Evilsandwichman@hexbear.net ⁨1⁩ ⁨day⁩ ago

    False; no sun = no morning!

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    • burgersc12@mander.xyz ⁨1⁩ ⁨day⁩ ago

      So extremely cloudy mornings = no morning? lol just kidding!

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• BenLeMan@lemmy.world ⁨19⁩ ⁨hours⁩ ago

  In a sane world this would earn you a dunce hat. In this one it will earn you a position in the gubmint.

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  • lord_ryvan@ttrpg.network ⁨7⁩ ⁨hours⁩ ago

    Is a position on the gubmint good or bad?

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    • BenLeMan@lemmy.world ⁨7⁩ ⁨hours⁩ ago

      Well, the U.S. government is the greatest freakshow on the planet right now.

      Would you like to be in it? If so, a position can be yours for as low as $2.5m. Hurry up while vacancies last.

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• KillingTimeItself@lemmy.dbzer0.com ⁨22⁩ ⁨hours⁩ ago

  i mean, if the moon is up there, the light first has to bounce off of the moon, and then back to earth, so yes, it would most definitely take longer…

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  • Klear@lemmy.world ⁨12⁩ ⁨hours⁩ ago

    the light first has to bounce off of the moon, and then back to earth

    That’s a second, more or less.

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  • aeki@slrpnk.net ⁨8⁩ ⁨hours⁩ ago

    This reminds me of Inconstant Moon by Larry Niven! Time for a reread.

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• TheOakTree@lemm.ee ⁨1⁩ ⁨day⁩ ago

  I wonder if we would feel the sudden disappearance of the centripetal force of gravity.

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  • Voyajer@lemmy.world ⁨1⁩ ⁨day⁩ ago

    After 8 minutes

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  • mipadaitu@lemmy.world ⁨1⁩ ⁨day⁩ ago

    scienceprimer.com/lunar-and-solar-tides

    Yes, the tidal effect of the sun would disappear, and that would probably make the oceans all fucky suddenly (after an 8 minutes lag).

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    • Alk@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

      Does gravity travel at the speed of light?

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  • apotheotic@beehaw.org ⁨1⁩ ⁨day⁩ ago

    After 8 minutes, almost certainly

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  • itslilith@lemmy.blahaj.zone ⁨1⁩ ⁨day⁩ ago

    Gravity isn’t a force, strictly speaking. Objects move along geodesics in spacetime (that’s basically a straight line along a curved surface), and gravity bends spacetime, and therefore also these geodesics, around massive objects. So you don’t actually get accelerated by gravity, that’s why you don’t feel anything during free fall. What we perceive as the force of gravity pushing us down, is the solid ground accelerating us upwards, when following the geodesic would have us fall instead.

    So when the sun disappears, the geodesic that used to spiral around the sun suddenly straightens out, and the neutral movement, the new free fall, has the earth continuing in a straight line. You wouldn’t be able to feel that. What the other person said about tidal forces is true tho, it would likely cause worldwide tsunamis

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• floquant@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago

  I wonder how long before you would feel it becoming colder

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  • piccolo@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

    If you ever experienced a solar eclipse, you will feel drastically how much the temperature changes.

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    • nightofmichelinstars@sopuli.xyz ⁨21⁩ ⁨hours⁩ ago

      Even the difference between standing in shade and standing in direct sunlight on a sunny day is noticeable.

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  • Evilsandwichman@hexbear.net ⁨1⁩ ⁨day⁩ ago

    Forget colder, I kind of feel like we’re missing out on not hearing the sun thanks to space

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• ColeSloth@discuss.tchncs.de ⁨1⁩ ⁨day⁩ ago

  But will we feel the shift in gravity as the planet starts moving straight?

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  • 0ops@lemm.ee ⁨1⁩ ⁨day⁩ ago

    This is the cutting-edge of my understanding so if I’m wrong somebody call me out, but I think because gravity is warping space-time and not actually pulling anything, we wouldn’t feel an inertia change. Our inertia would be maintained, but the space-time we’re going through would suddenly be shaped different, so we’d follow a new path

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    • mipadaitu@lemmy.world ⁨22⁩ ⁨hours⁩ ago

      The part you’re missing is that earth isn’t a point in space. That’s why there’s tides caused by the sun (which are different than tides caused by the moon)

      A person wouldn’t feel the difference, but the tides would slosh back when the solar gravity stops effecting them.

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    • Etterra@discuss.online ⁨1⁩ ⁨day⁩ ago

      So would all the other planets, so there’d be a non-zero chance we’d smack into one of them. Most likely though we’d become a very, very cold rogue planet.

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  • stebo02@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago

    yes, after 8 minutes

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    • ColeSloth@discuss.tchncs.de ⁨21⁩ ⁨hours⁩ ago

      I know gravity moves at the speed of light. I’m just referring to the slight pull of the gravity and the sudden shift to traveling straight off instead of a circle.

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  • LovableSidekick@lemmy.world ⁨23⁩ ⁨hours⁩ ago

    I really doubt we would notice, because then gravity would already feel different during the day and night. Technically the sun pulls us away from the Earth in the daytime and toward Earth at night. Also toward the east at sunrise and the west at sunset. I don’t think we ever feel this.

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    • kopasz7@sh.itjust.works ⁨20⁩ ⁨hours⁩ ago

      We are in “free fall” around the Sun so that’s why we don’t feel its pull of gravity.

      You would similarly feel weightless if you were in an orbit around Earth.

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• AdrianTheFrog@lemmy.world ⁨1⁩ ⁨day⁩ ago

  If it happens at night it will probably take 5 or 6 seconds longer for people to start seeing the first messages on the internet

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• IDKWhatUsernametoPutHereLolol@lemmy.dbzer0.com ⁨19⁩ ⁨hours⁩ ago

  That’s boring.

  Can we just have the reverse, like a “When Day Breaks” scenario? At least its fun.

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• someguy3@lemmy.world ⁨1⁩ ⁨day⁩ ago

  The telephone: “Am I a joke to you?”

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• Narauko@lemmy.world ⁨23⁩ ⁨hours⁩ ago

  The real question is if the earth becomes a rogue planet or if Jupiter captures most/all of the remaining solar system. Jupiter is technically a failed star, so could it finally get it’s glowup from being the sun’s understudy and keep us all together until we fall into the gravitational well of a new star?

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• GrabtharsHammer@lemmy.world ⁨1⁩ ⁨day⁩ ago

  For further reading, see Galaxias by Stephen Baxter.

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