Quote from: Rinev Jeqkogo on February 23, 2015, 05:08:51 PMHonestly I don't know a lot (other than common knowledge) about space off the top of my head. I know in Physics we learned things about orbits. I know that astronauts orbiting Earth aren't in a zero gravity environment, instead they are constantly accelerating towards it. There is a belt of satellites in geostationary orbit with the earths equator. And something about the earth, electromagnetism, the sun, and us dying. I wasn't in a Physics class for over a year so things are kind of fuzzy.I know what you mean.When the sun emits a solar flare, it's a stream of charged particles. If they collide with or atmosphere, they could ionise it and cause a worldwide EMP. Needless to say, knocking out the planet's electricity would be catastrophic.
Honestly I don't know a lot (other than common knowledge) about space off the top of my head. I know in Physics we learned things about orbits. I know that astronauts orbiting Earth aren't in a zero gravity environment, instead they are constantly accelerating towards it. There is a belt of satellites in geostationary orbit with the earths equator. And something about the earth, electromagnetism, the sun, and us dying. I wasn't in a Physics class for over a year so things are kind of fuzzy.
Sagittarius B2 contains about 10 billion billion billion liters of alcohol
Quote from: ShelfBacon on February 23, 2015, 05:11:36 PMQuote from: Rinev Jeqkogo on February 23, 2015, 05:08:51 PMHonestly I don't know a lot (other than common knowledge) about space off the top of my head. I know in Physics we learned things about orbits. I know that astronauts orbiting Earth aren't in a zero gravity environment, instead they are constantly accelerating towards it. There is a belt of satellites in geostationary orbit with the earths equator. And something about the earth, electromagnetism, the sun, and us dying. I wasn't in a Physics class for over a year so things are kind of fuzzy.I know what you mean.When the sun emits a solar flare, it's a stream of charged particles. If they collide with or atmosphere, they could ionise it and cause a worldwide EMP. Needless to say, knocking out the planet's electricity would be catastrophic.Hell, at this point it could cause the collapse of civilization.
Because at some point, some idiot will end up coming in like LOL UNIVERSE IS 6000 YEARS OLD SCIENCE A SHIT
Quote from: ShelfBacon on February 23, 2015, 05:11:36 PMQuote from: Rinev Jeqkogo on February 23, 2015, 05:08:51 PMHonestly I don't know a lot (other than common knowledge) about space off the top of my head. I know in Physics we learned things about orbits. I know that astronauts orbiting Earth aren't in a zero gravity environment, instead they are constantly accelerating towards it. There is a belt of satellites in geostationary orbit with the earths equator. And something about the earth, electromagnetism, the sun, and us dying. I wasn't in a Physics class for over a year so things are kind of fuzzy.I know what you mean.When the sun emits a solar flare, it's a stream of charged particles. If they collide with or atmosphere, they could ionise it and cause a worldwide EMP. Needless to say, knocking out the planet's electricity would be catastrophic.Kind of. Isn't there an electromagnetic field flowing from our south to north poles that shields us from solar winds or something like that? I think we learned that if the poles flipped we might all die.Here's a diagram
Quote from: ShelfBacon on February 23, 2015, 05:05:47 PMBecause at some point, some idiot will end up coming in like LOL UNIVERSE IS 6000 YEARS OLD SCIENCE A SHITThis has literally nothing to do with what I said. My post has nothing to do with religion. The problem of vacuum energy is a really interesting discussion, and you just disregarded it because you assumed it was theological.OT: Another interesting fact: Observed from any point in space, the rest of the universe appears to be expanding away from that point. Pic for example:Spoiler
It may be possible to survive for a while in the event horizon of a supermassive black hole, due to them having less extreme surfaces than normal black holes. If you had a black hole the size of our solar system, the tidal forces wouldn't be that strong, so your structural integrity could be maintained. Things would get pretty weird. You would get to experience the effects of the curvature of space-time, firsthand.You approach the speed of light as you fall into the black hole, so the faster you move through space, the slower you move through time. Furthermore, as you fall, there are things that have been falling in front of you that have experienced an even greater 'time dilation' than you have. So if you're able to look forward toward the black hole, you see every object that has fallen into it in the past. And then if you look backwards, you'll be able to see everything that will ever fall into the black hole behind you. Mind blowing.
Quote from: HurtfulTurkey on February 23, 2015, 05:18:07 PMQuote from: ShelfBacon on February 23, 2015, 05:05:47 PMBecause at some point, some idiot will end up coming in like LOL UNIVERSE IS 6000 YEARS OLD SCIENCE A SHITThis has literally nothing to do with what I said. My post has nothing to do with religion. The problem of vacuum energy is a really interesting discussion, and you just disregarded it because you assumed it was theological.OT: Another interesting fact: Observed from any point in space, the rest of the universe appears to be expanding away from that point. Pic for example:SpoilerWell in that case, my bad.Yeah, expansion is scary, espcaially when considering in about 100 billion years the acceleration will reach light speed and we won be able to see anything outside of our own galaxy.
Quote from: ShelfBacon on February 23, 2015, 05:28:37 PMQuote from: HurtfulTurkey on February 23, 2015, 05:18:07 PMQuote from: ShelfBacon on February 23, 2015, 05:05:47 PMBecause at some point, some idiot will end up coming in like LOL UNIVERSE IS 6000 YEARS OLD SCIENCE A SHITThis has literally nothing to do with what I said. My post has nothing to do with religion. The problem of vacuum energy is a really interesting discussion, and you just disregarded it because you assumed it was theological.OT: Another interesting fact: Observed from any point in space, the rest of the universe appears to be expanding away from that point. Pic for example:SpoilerWell in that case, my bad.Yeah, expansion is scary, espcaially when considering in about 100 billion years the acceleration will reach light speed and we won be able to see anything outside of our own galaxy.I thought it was speculated the universe's expansion rate was faster than the speed of light?
I thought it was speculated the universe's expansion rate was faster than the speed of light?
Betelgeuse going supernova one day. That shits supposed to be brighter than the moon for several weeks and will even be visible in the day time. Gonna be so cool. Just imagine seeing it hen it actually happens. Just looking into the sky and seeing this silent space explosion come up out of nowhere.
Quote from: HurtfulTurkey on February 23, 2015, 04:44:37 PMThe cosmological constant of the universe is precisely fine-tuned to not only the capability of life to form, but for the universe to have not collapsed immediately after the Big Bang, to the scale of 120 orders of magnitude, and that there is nothing close to an explanation for this.Please don't start trying to ruin what is currently an amazing thread. Also, if you're a believer in the multiverse theory, then the formation of a universe that can support life is a mathmatical certainty.
The cosmological constant of the universe is precisely fine-tuned to not only the capability of life to form, but for the universe to have not collapsed immediately after the Big Bang, to the scale of 120 orders of magnitude, and that there is nothing close to an explanation for this.
Quote from: Chakas on February 23, 2015, 05:35:42 PMBetelgeuse going supernova one day. That shits supposed to be brighter than the moon for several weeks and will even be visible in the day time. Gonna be so cool. Just imagine seeing it hen it actually happens. Just looking into the sky and seeing this silent space explosion come up out of nowhere.And the sad thing is we won't be around to see it.
That face when most of my physical knowledge isn't astronomical but theoretical and applied. Erm. . .Cosmology counts. Ok I assume most of you have heard of the heat death of the universe, right? Essentially its the "final state" of the universe where it asymptotically acquires perfect equilibrium, no energy gradients nothing can happen. What most folks don't take into account is that thermodynamical law is statistical. Entropy basically being based on the fact that there are more ways(it's more likely) for a system to acquire a "disordered" state than for it to acquire an "orderly" one(order is in quotes because its not really correct but I can't think of a another way to get across what I'm saying).What this means is that there is a vanishing but nonzero chance for an isolated system in equilibrium, "heat death", to acquire minimal or near minimal entropy, purely by chance. Apparently the reccurrence time for the quantum state of a blackhole the mass of our observable universe is somewhere on the order of 10^10^10^10^13 years. . .It's prudent to point out that our universe is more likely to quantum tunnel back to a pre-big bang state before this amount of time elapses. It's also prudent to point out that this based on certain assumptions about our universe that may not be supported by later theories.
Quote from: ShelfBacon on February 23, 2015, 05:45:32 PMQuote from: Chakas on February 23, 2015, 05:35:42 PMBetelgeuse going supernova one day. That shits supposed to be brighter than the moon for several weeks and will even be visible in the day time. Gonna be so cool. Just imagine seeing it hen it actually happens. Just looking into the sky and seeing this silent space explosion come up out of nowhere.And the sad thing is we won't be around to see it.We don't know that. We don't know exactly when it will blow. It could blow sooner or later.
Quote from: SexyBarracuda on February 23, 2015, 06:01:56 PMThat face when most of my physical knowledge isn't astronomical but theoretical and applied. Erm. . .Cosmology counts. Ok I assume most of you have heard of the heat death of the universe, right? Essentially its the "final state" of the universe where it asymptotically acquires perfect equilibrium, no energy gradients nothing can happen. What most folks don't take into account is that thermodynamical law is statistical. Entropy basically being based on the fact that there are more ways(it's more likely) for a system to acquire a "disordered" state than for it to acquire an "orderly" one(order is in quotes because its not really correct but I can't think of a another way to get across what I'm saying).What this means is that there is a vanishing but nonzero chance for an isolated system in equilibrium, "heat death", to acquire minimal or near minimal entropy, purely by chance. Apparently the reccurrence time for the quantum state of a blackhole the mass of our observable universe is somewhere on the order of 10^10^10^10^13 years. . .It's prudent to point out that our universe is more likely to quantum tunnel back to a pre-big bang state before this amount of time elapses. It's also prudent to point out that this based on certain assumptions about our universe that may not be supported by later theories.Heat death is something I'm very interested in. Over those massive time scales improbabilities like the Boltzmann brain could potentially form.
Quote from: Numb Digger on February 23, 2015, 06:37:00 PMQuote from: SexyBarracuda on February 23, 2015, 06:01:56 PMThat face when most of my physical knowledge isn't astronomical but theoretical and applied. Erm. . .Cosmology counts. Ok I assume most of you have heard of the heat death of the universe, right? Essentially its the "final state" of the universe where it asymptotically acquires perfect equilibrium, no energy gradients nothing can happen. What most folks don't take into account is that thermodynamical law is statistical. Entropy basically being based on the fact that there are more ways(it's more likely) for a system to acquire a "disordered" state than for it to acquire an "orderly" one(order is in quotes because its not really correct but I can't think of a another way to get across what I'm saying).What this means is that there is a vanishing but nonzero chance for an isolated system in equilibrium, "heat death", to acquire minimal or near minimal entropy, purely by chance. Apparently the reccurrence time for the quantum state of a blackhole the mass of our observable universe is somewhere on the order of 10^10^10^10^13 years. . .It's prudent to point out that our universe is more likely to quantum tunnel back to a pre-big bang state before this amount of time elapses. It's also prudent to point out that this based on certain assumptions about our universe that may not be supported by later theories.Heat death is something I'm very interested in. Over those massive time scales improbabilities like the Boltzmann brain could potentially form.Do you read Sean Carrol's blog? He talks about that a lot. From my understanding the universe is more likely to quantum tunnel back to a pre big bang state long before Boltzmann brains become a major observer probability skewing phenomenon. There's also the fact that know one really knows how an accelerating universe affects conclusions like heat death. I mean can an exponentially expanding system reach perfect equilibrium?
What's the most interesting space fact you know?
