/sci/ - Science & Math

sage

>>4615961
>doesn't know what sage means

Wasn't this here around last year?

>>4615965
sage

>>4615958
please please please stop, just stop.

I think this question is too advanced for sci maybe ask /a/ or /fit/ or /lit/ They're the real genius' of sci

(Yes I know very very very very very stale copypasta.)

The volume of the sun is 1.4E27 cubic meters. The density of ice is 917 kg/m3. Therefore the mass of an "ice sun" would be 1.3E30 kg. The mass of our sun is 2.0E30 kg. The mass of a sun made out of lava would be 3.6E30 kg, which is heavier than our sun.

The mass required for transformation into a star is 80 Jupiter masses. This is 80*1.8986E27 kg or 1.5E29 kg. Both of these "suns" have the mass to become stars and sustain fusion. Therefore, they will cease to be suns made of ice or lava.

Let's assume the stars are initially binary systems, treat them as point particles, and ignore tidal and general relativistic effects on their orbits. This allows us to use the N-code (Aarseth 1999) and corresponding computational methods. On my not-so-powerful laptop, I calculate that at velocities below 750 km/s the stars would coalesce. At higher velocities the lava star would destroy the ice star, but be severely damaged in the process.

dragon dildos proto matter

>>4615988
>treat them as point particles, and ignore tidal and general relativistic effects on their orbits

>>4615997
Sure, let's see you include these things on your personal laptop and run the simulation. No offense to the poster but I'm ok with some errors, and I'm not about to waste valuable time on more powerful systems.

Can we finally put this lava and ice question to rest now that it's been answered?

>>4615988
Thanks

turns to cobblestone obv

>>4616035

Nope! Not yet!

(pic related)

>>4616291
you would get america's youth

>>4616291
Hmm...a 40 inch TV is about 100 kg (CRT type). That's also about 1 cubic meter. Therefore the brain is about 10x as dense.

What will happen is that the sun made of TVs will not have enough mass to sustain fusion, and will therefore exist as very large TV. The giant brain will sustain fusion and become an actual star. It will obliterate the clump of TVs

>>4616343
No.

I think the answer >>4615988 provided was very good, but it failed to address that the other sun would not be made of hydrogen but rather be made out of lava. That is as in molten rock.

>>4616369

IQ fundie would happen.

>>4616375

He answered the spirit of the question though, the person originally proposing this with a high probability thought the sun was indeed made of lava, and therefore just meant the sun.

>>4616375
Then you can also consider the volatile gasses, which make up single percentages of the lava. Gases like H2O, H2, H2S for example. I doubt fusion would be sustained for awhile though, if at all. It's a pretty crazy idea to consider.

>>4616406

I have no knowledge of astrophysics outside pop-science nor a feel for such large bodies. But on a body made out of ice of frozen h2o the diameter of the sun, what would happen at it's core? surely it could not remain frozen solid.

Stars aren't made of "lava". Stars are made of continuous nuclear events.

But if it were a collision of a "lava giant" and "ice giant", then I would guess that the entropy generated from the collision as well as the intense amounts of pressure would create: gaseous water, liquid water, ice, solid mineral material, liquid mineral material, and gaseous mineral material. Given that the the chaos subsides settles in the appropriate configuration, you would have a planet that could potentially sustain life.