Comment on what really happened to the Titanic
LurkingLuddite@piefed.social 2 weeks agoNah, there’s literally not enough nukes or even fissile material to make an Earth-shattering bomb. It takes a lot of energy to shatter something the size of Earth.
Not enough fissile material on earth. With enough asteroid and planetary mining, and … ah never mind. You are probably still right. "Shattering means breaking apart and defeating earth’s gravity well.
We’ll have to get started on antimatter bombs for the required energy density, I guess.
Correct. Even with perfect conversion of mass to energy, it would still take converting the mass equivalent of a 16+ km asteroid directly into energy.
Even antimatter explosions are not anywhere near 100% efficient. They produce many subatomic particles with high energy. Much of the reaction will quickly (on the order of 1x10^-18 seconds) settle into neutrinos or electrons. About half of the energy would nigh-instantly convert to neutrinos. Neutrinos will not care even if they’re produced in the Earth’s core.
What are your recomendations? Assuming Earth had to be shattered in a kaboom.
A very large asteroid (>500km) would be a good attempt at ‘shattering’. Otherwise, a “small” black hole or other cosmic-scale forces would do the trick. A near by blazar would easily sterilize the planet if it were aimed at us, but there are none such objects we have yet observed. (luckily)
The sun itself is easily capable of smearing Earth out, but the real question is “how?”. Even a crazy CME aimed directly at Earth would be able to wipe out technology, let alone life. A close call with another solar system would definitely stand a solid chance of wiping out life as we know it, but it wouldn’t necessarily be terribly quick.
It’d be very predictable in that we’d be able to see another solar system coming for decades/centuries/longer, and many changes would still be longer than a human lifespan (outside of the final ‘kick’ event, which could be over in a matter of weeks/months and leave the surface freezing and potentially devoid of much atmosphere).
Deep core mining is the real tech we need. Blow up a 10 gigaton device on the surface and you’ll melt a hemisphere of the upper layer of the crust, bury that baby 5,000 miles into the planet and blow it up? The Earth is gonna need help opening it’s ketchup bottles for a few billion years until it reforms.
lol no. 10 gigatons is a yawn to the Earth. It’s still 14 orders of magnitute too weak to blow up the Earth. That’s trillions of times less than what it would take to “blow up” the Earth, and 10000x less than Chicxulub, which the Earth already survived.
You are, again, orders of magnitude off, and have no clue what you are talking about. I’m an actual nuclear power scientist, so yeah. I’m gonna ignore all the lies you tell from now on.
AngryCommieKender@lemmy.world 2 weeks ago
If you blow it up on the surface or in the atmosphere, sure. Blow up a 10 gigaton device, which we absolutely can make and have the materials to do so, buried as deep as you can possibly get it, so about 1.5-1.6 miles in the crust, and you’re gonna wreck a significant portion of a hemisphere.
LurkingLuddite@piefed.social 2 weeks ago
lol no. Genuinely, no. You are a clueless fool playing with numbers you cannot comprehend.