Anything Denser than Neutronium?

[RUMBLETiGER]

Complete Divine p.36, The Entropomancer.

Shard of Entropy Supernatural class ability.

I have absolutely no idea how you'd harness it into a building material for a construct, but there you go as an in-game, RAW substance.

Also, Sphere of Annihilation.

 

[PrinceAngore]

Im pretty sure my Mom makes Fruit Cake of Annihilation every year...
What would be the benefits of such a dense Colossus?

 

[kitcik]

Im pretty sure my Mom makes Fruit Cake of Annihilation every year...
What would be the benefits of such a dense Colossus?

Well, WOTC already has the copyright so adding it to D&D would be no problem...

 

[Sekhmet]

Quark-gluon plasma is the most dense matter ever to be observed, and the only theorized source of a more dense matter would be a singularity/black hole.

The LHC made the stuff in a few of it's experiments. It's pretty cool.

Interestingly, a cubic centimeter of quark-gluon plasma would weigh in the realm of 40billion tons.

A 372 meter by 1 centimeter band around the Earth made of quark-gluon plasma would weigh roughly as much as the Earth. Fun!

 

[Loren Pechtel]

What's this love of neutronium as a building material???

Neutronium can only exist under extreme pressure--it's in effect a supercritical fluid at all temperatures. You can't build things out of it.

 

[Dandu]

I think you can in Dr. Who...

 

[Captain Trek]

Perhaps it would be better to do what Total Annhilation did and say that something (you can use magic, in the case of a construct, whereas TA used technobable) has altered the properties of a comparatively normal material so that it behaves like one giant molecule.

 

[Greenfield]

As a note: Neutronium is a theoretical substance, but if the theory holds together, it's only gravity holding it together. There are no molecular bonds, no electronic attraction factors, no nuclear forces as such.

Without anything resembling a nuclear or molecular structure to hold energy (i.e. heat) it's a Bose Einstein condensate bordering on strange matter. (By this I mean that heat is stored in matter as an energy state that affects the electron cloud, or on a more macro scale as molecular vibration. Since neutronium has neither an electron cloud nor any structure of free space where vibrations could occur, it is by default at absolute zero.)

So as soon as you get it away from the neutron star that formed it it will dissipate into free neutrons. In essence, it's little more than freeze-dried radiation poisoning waiting to happen.

 

[Loren Pechtel]

As a note: Neutronium is a theoretical substance, but if the theory holds together, it's only gravity holding it together. There are no molecular bonds, no electronic attraction factors, no nuclear forces as such.

Without anything resembling a nuclear or molecular structure to hold energy (i.e. heat) it's a Bose Einstein condensate bordering on strange matter. (By this I mean that heat is stored in matter as an energy state that affects the electron cloud, or on a more macro scale as molecular vibration. Since neutronium has neither an electron cloud nor any structure of free space where vibrations could occur, it is by default at absolute zero.)

So as soon as you get it away from the neutron star that formed it it will dissipate into free neutrons. In essence, it's little more than freeze-dried radiation poisoning waiting to happen.

I thought you still had motion of the neutrons and thus temperature. They're packed densely but not bound, that sounds to me like a superfluid.

 

[The Red King]

What's this love of neutronium as a building material???

Neutronium can only exist under extreme pressure--it's in effect a supercritical fluid at all temperatures. You can't build things out of it.

Sure you can! ...With MAGIC!!!!