Are they also unbound by momentum?
funkless_eck 35 points 2 years ago
relative to the galactic central point, per Eric Idle, the earth would be 200k/125 miles away in a single second, or relative to everything in the universe / background radiation, it would be 23,000 miles (37,000 km) away in a single second.
Preserving momentum in different directions and you quickly double it
Assuming an even rate of death, that's just under 2 people dying per second currently, so you wouldn't even be able to see the people who died before or after you if you retained human senses as a ghost.
blanketswithsmallpox 4 points 2 years ago
... Boo.
LibertyLizard 1 point 2 years ago
Yeah they would go flying off into space relative to earth but I was more referring to the idea that they’d somehow become stationary due to being immune to gravity. That wouldn’t be sufficient on its own.
aeronmelon 15 points 2 years ago
several physicists are typing…
Anafabula 69 points 2 years ago
We already had a discussion about how that doesn't make sense with this different comic: https://lemmy.ml/post/14518058
cannedtuna 7 points 2 years ago
Who’s “we” tho? It’s like a 4 month old post.
Funny tho I wonder if the artist read that thread and got the idea for this comic or if it’s just a case of like minds.
daveywaveyboy 9 points 2 years ago
I wonder …
fossilesque 8 points 2 years ago path: 0 11759633 11761804, hotness: undefined, score: 8, children: 0
roguetrick 23 points 2 years ago
This is incorrect. Ghosts do have mass, they just don't interact with the EM force and only through the gravity, the strong and the weak interaction (and a fifth interaction that we don't know about). That's right, all that dark matter and dark energy is actually ghosts.
Knock_Knock_Lemmy_In 8 points 2 years ago
This is the best explanation I've heard for dark matter that doesn't involve the assumption that our cosmological models are completely correct.
Huckledebuck 2 points 2 years ago
Can we define ghosts simply as the extinguished consciences of sentient life? So, dark matter and dark energy are the thoughts and memories of our universe.
With no mass they will continue in a straight line at the velocity they were at when they transcended.
Ghosts everywhere!
Chekhovs_Gun 3 points 2 years ago
I'll be dead long before you were born and I'll be dead long before you'll be dead.
metallic_z3r0 20 points 2 years ago
Is the reference frame the CMB? You'd think you could just choose the reference frame at that point and move however you want, but arguing the physics of hypothetical metaphysical beings probably doesn't make much sense.
EarthShipTechIntern 20 points 2 years ago
SpaceGhost(s)! Coast to (galactic) coast!
Lost_My_Mind 2 points 2 years ago
Zorak is the hammer! Me!!! ZORAK IS THE HAMMER!!!
dQw4w9WgXcQ 11 points 2 years ago
Does newton's laws apply to massless objects?
roguetrick 3 points 2 years ago
I don't see how. The law of motion for massless things seems to be "must stay in motion at c in a vacuum until smashing into something, slowly turning into something weird as it loses energy due to the expansion of the universe."
justme 1 point 2 years ago
Massless objects always move at the speed of light (photos are massless). More important here is, that easy is not on a uniform motion, but rotating around sun, which is rotating around.... So even if they remain in their last motion, their path would cover from earth... But motion relative to what? The only special frame of inertia is the cosmic background, and that statement is still under debate
dQw4w9WgXcQ 1 point 2 years ago
Speed is always considered relative to something. It wouldn't be too far fetched to consider ghosts to maintain speed relative to the remains of the body of their late life.
Droggelbecher 14 points 2 years ago
The only things that aren't bound by gravity are massless. Massless things always have to be moving at the speed of light. So really the question is, what direction would the ghost shoot off to? Momentum would have to be preserved, so it'd be the opposite direction of where the corpse drops. Or maybe the corpse just move a teensy bit to the opposite direction of the ghost?
Note: this assumes Newtonian or at least semi classical physics. In general relativity, there is no such thing as being unbound by gravity.
Lost_My_Mind 7 points 2 years ago
Yeah, but....imagine if I were in that mass tragedy with you. You're telling me you wouldn't rather be alone for eternity, than with me for eternity?
Gordon 1 point 2 years ago
I mean, I'm sure there's a statistic that someone can look up but as many people as are on the planet, I feel like there would always be someone within shouting distance if not closer. I guess it really depends on how fast the earth is moving and what the frame of reference is.
Cornelius_Wangenheim 11 points 2 years ago path: 0 11754543 11755087 11756936, hotness: undefined, score: 11, children: 0
NotMaster 5 points 2 years ago
Here is a sad face...
Earth orbits the sun. The sun orbits the super cluster in the middle of the galaxy. The galaxy is flying off into space being pulled on by other galaxies. The earth will never occupy the same expect space if you factor in all the movements. If you were holding the hand of your loved one and the two of you died withing a thenth of a second apart you would not be able to see them by the time difference at those speeds.
Though its all relative how you want to measure and what you want to measure.
Bishma 4 points 2 years ago
The earth moves at 18 miles per second in orbital velocity alone, there aren't people within shouting distance of me now, and the opposite site of the planet from me is 80 miles off the coast of Madagascar. If I die at home I'm alone forever unless my wife goes at the same instant.
ohwhatfollyisman 1 point 2 years ago
according to this site, there are 166k desths per day; which works out to about 7k deaths per hour or a little under 120 deaths per minute (around 2 deaths per second).
even if you get paired with somebody who dies in the same quadrant as you, there's a good chance that that person will be an annoying prick.
so the maths bears out. the commenter to whom you replied is correct in saying that--if the ghost-no-gravity theory is true--you would be better off dying in a mini-mass-massacre event.
NocturnalMorning 11 points 2 years ago
That explains why there are no ghosts.
Evil_Shrubbery 10 points 2 years ago
Even the galaxy fucks off very quickly from you.
But now we know who inhabits all those spoopy voids.
PrimeMinisterKeyes 2 points 2 years ago
First picture looks like a Borg cube.
Evil_Shrubbery 1 point 2 years ago
Zomg, Borg souls cube!! :|
FlyingSquid 9 points 2 years ago
I always thought that this would be a similar issue with time machines. Go back even 1 second and you're floating in the void.
exocortex 10 points 2 years ago
Well, but general relativity teaches us that all coordinate systems (also constantly moving, but not accelerating ones) are equally relevant. This means that the one with earth as it's origin is as correct as one where with the center of the galaxy (or the sun ) as is every other. So the one where earth moves somehow through space is just as random as any other.
FlyingSquid 1 point 2 years ago
I guess it depends on the sort of time machine. I'm thinking the H.G. Wells variety- a machine you get in or on and it takes you back in time, but to the same location.
That's also how it works in Back to the Future.
FlyingSquid 1 point 2 years ago
What does it mean?
creditCrazy 2 points 2 years ago
That's actually kinda my head cannon as to why the doctor in doctor who is so hands on when piloting the TARDIS a time machine that only travels through time is useless because you can't affect history while floating out in space and it's also dangerous if you happen to pop into existence inside a block of dirt the more I think about it doctor who is a pretty realistic depiction of what time travel will be like even with the TARDIS moving air out the way before landing instead of creating a shockwave from TARDIS molecules materializeing inside of atmosphere molecules
bionicjoey 7 points 2 years ago
Awesome idea for a Lovecraftian horror story. Maybe the ghosts leave a scent trail that attracts a ghost-eating planet-sized alien
LunarLoony 5 points 2 years ago
That alien's name?
Pac-Man.
FiniteBanjo 7 points 2 years ago
Relative to what? That makes no sense.
NoSpotOfGround 8 points 2 years ago
Relative to the Cosmic Microwave Background. Seems to be the closest thing to an absolute reference frame.
FiniteBanjo -1 points 2 years ago
The cosmic microwave background has no center, any claims that it even has a direction is controversial.
NoSpotOfGround 4 points 2 years ago
Is it controversial? I thought it was pretty established. In Wikipedia it says:
From the CMB data, it is seen that the Sun appears to be moving at 369.82±0.11 km/s relative to the reference frame of the CMB (also called the CMB rest frame, or the frame of reference in which there is no motion through the CMB). The Local Group — the galaxy group that includes our own Milky Way galaxy — appears to be moving at 620±15 km/s in the direction of galactic longitude ℓ = 271.9°±2°, b = 30°±3°.[88] The dipole is now used to calibrate mapping studies.
FiniteBanjo -3 points 2 years ago
Don't cite Wikipedia. Look at the tiny numbers in blue, click the one next to the statement you want to verify, it will show you the source of the information at the bottom of the page next to the matching number.
EarthShipTechIntern 2 points 2 years ago
Galactic!
{galactic coast to galactic coast}
TheObviousSolution 5 points 2 years ago
But in which frame of reference? Our solar system is also moving, so is our galaxy, our universe is "expanding", and let's not even talk about the multiverse, that's overdone as it is.
proton_lynx 4 points 2 years ago
We move (with the Sun) around the Milky Way at about 792.000 km/h. At that speed, you wouldn't even see the earth getting away from you.
samus12345 3 points 2 years ago
They're often depicted as bound to a person or place, though.
mannycalavera 2 points 2 years ago
Sounds like Scientology 💩
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