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What, no planet kablooey?

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Re: What, no planet kablooey?
Post by TFLYTSNBN   » Wed Sep 26, 2018 8:19 pm

TFLYTSNBN
Admiral

Posts: 2289
Joined: Tue Aug 07, 2018 8:58 am

I understand this very well. A very large, high velocity projectile can create the temperature and pressure needed to ACCELLERATE the PeP reaction rate. We do not need to get the star to detonate in a millisecond, a minute, an hour or even a day. We do not even need to detonate a large fraction of the fusion fuel. Because of the opacity of steller gas, containment time is measured in years.

Loren Pechtel wrote:
TFLYTSNBN wrote:Now do something, anything, that dumps a lot of energy into a star and creates a shockwave that increases the local density in a relatively large volume. Detonate a million megaton nuke in it. Impact the star with a Bussard ramship doing about .99c. Drop a planet in the star, or awarship the size of a large moon. Fusion reaction rate suddenly soars resulting in more heat, more pressure, and more density which results in even more fusion. You might not get the entire mass of the star to undergo fusion, but just a few percent is suffecient to create a nova level explosion.

Incidentally, this is basically how a fission-fusion bomb functions. A shockwave initiated by a fission reaction propogates through the fusion fuel that has been precompressed by reflected X-rays which results in an amplyfing fusion reaction.


The problem with this approach is that the fusion reaction is far from anything you dump in there. There is one scientist who thinks a sufficient energy dump can create a self-sustaining fusion shockwave but I've heard he's not too credible.

As for the hydrogen bomb--the reason that goes fast is that it's made of lithium (which splits into helium-3 and either helium-3 (if Li6) or helium-4 (if Li7), the He3 then reacting with the deuterium. There's also deuterium-deuterium fusion. These reactions go far faster than plain hydrogen fusion. Put starstuff in the bomb and you're not going to get a meaningful fusion yield.
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Re: What, no planet kablooey?
Post by cthia   » Sun Sep 30, 2018 1:25 pm

cthia
Fleet Admiral

Posts: 12069
Joined: Thu Jan 23, 2014 12:10 pm

What is the most destructive planet killer in the Honorverse?

Ingredients. . .

  • 4 Grayson men
  • 4 Grayson women
  • 4 Masadan men
  • 4 Masadan women

Stuck in an elevator.

3 . . . 2 . . . 1 . . . kablOOey


Did I mention it was a short fuse?

Son, your mother says I have to hang you. Personally I don't think this is a capital offense. But if I don't hang you, she's gonna hang me and frankly, I'm not the one in trouble. —cthia's father. Incident in ? Axiom of Common Sense
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Re: What, no planet kablooey?
Post by Kael Posavatz   » Sun Sep 30, 2018 2:00 pm

Kael Posavatz
Lieutenant Commander

Posts: 104
Joined: Sun Aug 05, 2018 12:51 am

cthia wrote:What is the most destructive planet killer in the Honorverse?

Ingredients. . .

  • 4 Grayson men
  • 4 Grayson women
  • 4 Masadan men
  • 4 Masadan women

Stuck in an elevator.

3 . . . 2 . . . 1 . . . kablOOey


Did I mention it was a short fuse?




Beowolfians, one each, to serve as catalyst and explosive booster.
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Re: What, no planet kablooey?
Post by cthia   » Sun Sep 30, 2018 8:24 pm

cthia
Fleet Admiral

Posts: 12069
Joined: Thu Jan 23, 2014 12:10 pm

Kael Posavatz wrote:
cthia wrote:What is the most destructive planet killer in the Honorverse?

Ingredients. . .

  • 4 Grayson men
  • 4 Grayson women
  • 4 Masadan men
  • 4 Masadan women

Stuck in an elevator.

3 . . . 2 . . . 1 . . . kablOOey


Did I mention it was a short fuse?




Beowolfians, one each, to serve as catalyst and explosive booster.


Each wife will be standing behind her man telling him to "Do something about this bitch!" She be noble to her cause.

Shenobyl.


And of course the mistake in movement orders made by the Janacek Admiralty to recall the control rods.

In this corner the Protector of Grayson.
In this corner the Chief Elder.

Meltdown all over again.

Son, your mother says I have to hang you. Personally I don't think this is a capital offense. But if I don't hang you, she's gonna hang me and frankly, I'm not the one in trouble. —cthia's father. Incident in ? Axiom of Common Sense
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