Galaxies spiral around black holes and those move around, sure, but this is a black hole that's kinda just meandering through the galaxy eating whatever
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JedocIn the scupperswith the staggers and jagsRegistered Userregular
Galaxies spiral around black holes and those move around, sure, but this is a black hole that's kinda just meandering through the galaxy eating whatever
IIRC gravity affects everything. Massive objects can still be moved by smaller ones, but just in relatively smaller amounts. A star is still moved by the planets around it, for example. That wobble is actually one way of finding exoplanets.
Rogue black holes were theorized. The example I remember was what happens when two black holes pass by close enough to be affected by their gravity wells, but not enough to combine? One theory was that you could basically end up with a black hole that managed to pull off a gravity slingshot across space.
Galaxies spiral around black holes and those move around, sure, but this is a black hole that's kinda just meandering through the galaxy eating whatever
Black holes are an object in space. As far as gravity and it's effects are concerned, it interacts in exactly the same way as a star or planet or your enemies massive ass.
See I hear "black hole wandering" and my first thought is oh god they can move around?!
And since they're invisible they can sneak up on you when you least expect it.
It's terrifying to know that astronomers are actively trying to figure out when our solar system is going to get wrecked by some otherwise invisible interstellar traveler.
See I hear "black hole wandering" and my first thought is oh god they can move around?!
And since they're invisible they can sneak up on you when you least expect it.
It's terrifying to know that astronomers are actively trying to figure out when our solar system is going to get wrecked by some otherwise invisible interstellar traveler.
And not so invisible. Scholz’s Star passed through our Oort cloud just 70,000 years ago. Gliese 710 will pass through the Oort cloud 1.4 million years from now. Should be quite the sight as at that distance it will outshine all the other stars in the sky. Fortunately it'll likely take a few more million years after that for the comets it knocks loose to be an issue.
Just remember that half the people you meet are below average intelligence.
Galaxies spiral around black holes and those move around, sure, but this is a black hole that's kinda just meandering through the galaxy eating whatever
Black holes are an object in space. As far as gravity and it's effects are concerned, it interacts in exactly the same way as a star or planet or your enemies massive ass.
Especially since most black holes are only large star-sized and not 'mega-hub of a galaxy' sized.
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ShadowenSnores in the morningLoserdomRegistered Userregular
The wreck of Sir Ernest Shackleton’s ship has been found off the coast of Antarctica, according to the Falklands Maritime Heritage Trust.
Endurance had not been seen since it was crushed by ice and sank in the Weddell Sea in 1915, and last month the Endurance22 Expedition set off from Cape Town, South Africa, a month after the 100th anniversary of Shackleton’s death on a mission to locate it.
Endurance was found at a depth of 3,008 metres and approximately four miles south of the position originally recorded by the ship’s captain, Frank Worsley, the trust said.
so the sad sidenote in this is that it really helped finding the ship that the sea area around normally is frozen solid but this year's summer has a much reduced amount of ice...
honovere on
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BroloBroseidonLord of the BroceanRegistered Userregular
It takes a lot of heat to melt metal. However, with a bit of electricity and wire, you can melt a chunk of metal with a magnetic field, and suspend in it mid-air so it looks cool during the process [source and full video: https://t.co/Hv2xjK0Qkn] [more: https://t.co/e7z2lMbFsJ]https://t.co/6RotIzoyoR
I initially thought that was why the metal drops after it melts but the youtube comments indicate that's just the coil being turned off so I continue to not understand magnets.
interesting, yeah the point at which iron starts losing magnetic properties due to heating banging the atoms around and disrupting the alignment is 770 Celsius, vs. 1500 Celsius to start melting
so I guess you need a really strong electromagnet to do that
interesting, yeah the point at which iron starts losing magnetic properties due to heating banging the atoms around and disrupting the alignment is 770 Celsius, vs. 1500 Celsius to start melting
so I guess you need a really strong electromagnet to do that
I think you would need a strong enough field to force the alignment to stay. I wouldn't be surprised if this also lowers the energy input required to reach the melting point as that rotational energy is converted to vibrational energy
interesting, yeah the point at which iron starts losing magnetic properties due to heating banging the atoms around and disrupting the alignment is 770 Celsius, vs. 1500 Celsius to start melting
so I guess you need a really strong electromagnet to do that
I think you would need a strong enough field to force the alignment to stay. I wouldn't be surprised if this also lowers the energy input required to reach the melting point as that rotational energy is converted to vibrational energy
There is no alignment though.
That'll be an AC coil, and the changing current causes a magnetic field that sets up eddy currents in the metal that oppose the changing magnetic field.
I don't think the eddy currents much care about the liquid metal.
They just need enough sections of metal that are close enough together to build large eddies.
If anything, the liquid metal would likely increase the electrical resistance in the metal, causing it to heat faster.
Anyway, this is why you don't want metal in an MRI machine.
Heating iron to the Curie point allows the magnetic alignment in it's normally crystalline structure to start to move around and become randomized. Since things are no longer aligned, it becomes non-magnetic. But placing the iron inside a magnetic field, such as inside an induction heater, as it's heated makes the atoms want to move to be oriented with the field instead of randomized, so it retains it's magnetism.
Just remember that half the people you meet are below average intelligence.
Basically it works because the "mag-" in "magnet" means "magic". Meaning that magnets are "magic nets" that trap conductive materials.
These magic nets shimmy back and forth like an ocelot in the tide. So we say that they "ocelate" (though current spelling is "oscillate" from the old english spelling of ocelot) due to "A sea current" (Which is just abbreviated to "AC").
The conductive material doesn't like being trapped in these magic nets so they get energetic and "resist" the power of these oscillations. But because it's trapped in the magic net, this just causes the metal to become overheated.
Thus, the magnets oscillate using AC current, inducing an electric charge in the metal, and that charge is converted to heat through resistance.
Basically it works because the "mag-" in "magnet" means "magic". Meaning that magnets are "magic nets" that trap conductive materials.
These magic nets shimmy back and forth like an ocelot in the tide. So we say that they "ocelate" (though current spelling is "oscillate" from the old english spelling of ocelot) due to "A sea current" (Which is just abbreviated to "AC").
The conductive material doesn't like being trapped in these magic nets so they get energetic and "resist" the power of these oscillations. But because it's trapped in the magic net, this just causes the metal to become overheated.
Thus, the magnets oscillate using AC current, inducing an electric charge in the metal, and that charge is converted to heat through resistance.
Basically it works because the "mag-" in "magnet" means "magic". Meaning that magnets are "magic nets" that trap conductive materials.
These magic nets shimmy back and forth like an ocelot in the tide. So we say that they "ocelate" (though current spelling is "oscillate" from the old english spelling of ocelot) due to "A sea current" (Which is just abbreviated to "AC").
The conductive material doesn't like being trapped in these magic nets so they get energetic and "resist" the power of these oscillations. But because it's trapped in the magic net, this just causes the metal to become overheated.
Thus, the magnets oscillate using AC current, inducing an electric charge in the metal, and that charge is converted to heat through resistance.
New Horizons mission scientists have found evidence that cryovolcanic activity – ice volcanoes – most likely created some of the unique structures on Pluto not yet seen anywhere else in the solar system. Details: http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20220329
Neat!
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Brovid Hasselsmof[Growling historic on the fury road]Registered Userregular
'Ice volcanoes'? Look just because you have PhDs doesn't mean you can just make things up to take the piss.
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PiptheFairFrequently not in boats.Registered Userregular
Posts
Galaxies spiral around black holes and those move around, sure, but this is a black hole that's kinda just meandering through the galaxy eating whatever
Not me, it's a snow day.
And since they're invisible they can sneak up on you when you least expect it.
IIRC gravity affects everything. Massive objects can still be moved by smaller ones, but just in relatively smaller amounts. A star is still moved by the planets around it, for example. That wobble is actually one way of finding exoplanets.
Rogue black holes were theorized. The example I remember was what happens when two black holes pass by close enough to be affected by their gravity wells, but not enough to combine? One theory was that you could basically end up with a black hole that managed to pull off a gravity slingshot across space.
Black holes are an object in space. As far as gravity and it's effects are concerned, it interacts in exactly the same way as a star or planet or your enemies massive ass.
It's terrifying to know that astronomers are actively trying to figure out when our solar system is going to get wrecked by some otherwise invisible interstellar traveler.
And not so invisible. Scholz’s Star passed through our Oort cloud just 70,000 years ago. Gliese 710 will pass through the Oort cloud 1.4 million years from now. Should be quite the sight as at that distance it will outshine all the other stars in the sky. Fortunately it'll likely take a few more million years after that for the comets it knocks loose to be an issue.
Especially since most black holes are only large star-sized and not 'mega-hub of a galaxy' sized.
Glass shark, glass shark, glass shark...
https://www.esa.int/Science_Exploration/Space_Science/Solar_Orbiter/Giant_solar_eruption_seen_by_Solar_Orbiter
luckily away from earth
so the sad sidenote in this is that it really helped finding the ship that the sea area around normally is frozen solid but this year's summer has a much reduced amount of ice...
my b
I'll come pick it up this weekend or something
Boat wrecks are awesome though. Look at all the sea beasties hanging out on it.
3000 metres sounds pretty damn deep
HUGE fan of climate change over here
Honestly?
Same.
Everything is magnetic given a sufficiently powerful magnet.
Magneto should, frankly, be able to just stop people's hearts at a glance by crushing them. But that's kind of boring to draw.
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man, no wonder ICP was confused...
so I guess you need a really strong electromagnet to do that
I think you would need a strong enough field to force the alignment to stay. I wouldn't be surprised if this also lowers the energy input required to reach the melting point as that rotational energy is converted to vibrational energy
Not today Satan
There is no alignment though.
That'll be an AC coil, and the changing current causes a magnetic field that sets up eddy currents in the metal that oppose the changing magnetic field.
I don't think the eddy currents much care about the liquid metal.
They just need enough sections of metal that are close enough together to build large eddies.
If anything, the liquid metal would likely increase the electrical resistance in the metal, causing it to heat faster.
Anyway, this is why you don't want metal in an MRI machine.
These magic nets shimmy back and forth like an ocelot in the tide. So we say that they "ocelate" (though current spelling is "oscillate" from the old english spelling of ocelot) due to "A sea current" (Which is just abbreviated to "AC").
The conductive material doesn't like being trapped in these magic nets so they get energetic and "resist" the power of these oscillations. But because it's trapped in the magic net, this just causes the metal to become overheated.
Thus, the magnets oscillate using AC current, inducing an electric charge in the metal, and that charge is converted to heat through resistance.
Is this CRT
CRTs do use electromagnetism to function, yes
An Alzheimer’s Drug That Doesn’t Treat Alzheimer’s? (12:33)
Neat!
astrophysicists are the least creative nerds in the world
Don't forget about WIMPs and MACHOs.