Ranger wrote on Sep 24
th, 2010 at 11:02pm:
Display Name talks about a "natural disaster" while I'm interested in manmade extinction events.
Do you really mean "extinction" because your examples are for single/localized targets...
A falling object requires 4500" to reach 1000"/turn (free fall in a single gravity). This is simply 100 + 200 + 300, etc. all the way up to 900. This is approx 4.26 miles.
Teleporter (from F.O.R.C.E.) can easily reach this height. Unfortunately, he can only lift 302 lbs and Leo is 350 lbs. Teleporter is also level 2 to Leo's level 9. Yeesh... this is getting outta hand already.
Anyway, let's say Teleporter manages to grab Leo and has the carrying capacity to teleport him up into the sky. He won't necessarily need to breath because he won't be there long. The lower air pressure will probably be extremely uncomfortable, but not fatal. Leo begins free fall and achieves the 1000"/turn max speed upon impact into dirt (it's stereotypical Africa!). His BH is 7 to dirt's 4, so the ground and Leo split the damage.
1000 * sqrt(7) = 2646
2646 / 2 = 1323
The ground takes 1323 damage, so a crater approx 331 cubic feet (whatever that means) is made. I would probably leave the description at "a big hole"...
Leo is invulnerable, so:
1323 / 30 = 44
Leo takes 44 points of damage. He rolls with 12 points (full strength) and takes 32 points to his HP.
Final result: his clothes are ruined and his hair is mussed (and now he's angry). Oh, and he's "down" to 92 HP...
Assuming Teleporter grabs him and does the same thing again the same thing would happen (falling 4.25 miles takes longer than one turn, so Leo's invulnerability would kick back in). It would take 6 falls to incapacitate Leo and maybe 7 to kill him: (HP + Power) / 44 dam per fall.
Heck, even a large nuclear bomb would have problems taking out Leo. In the 2.1 rules it does 20d20, which is more powerful than the 2.0 rules. With an average roll of 10, this means 200 points of "typical" damage. Leo almost has that in HPs (not to mention that pesky invulnerability).
The space object against a ground target is a destructive idea, but navigating an object from space to a ground target is where you would have the most trouble. You'd have to account for the fall itself and then for the aerodynamics of the object and also for the decay of the object from atmospheric burn. Hmmm... This would be a job for Dr. Apocalypse.
He would have to find a space object (easy enough since most known space objects have documented location/course/trajectories) and then reroute it on a collision course for Earth. This would be a lot trickier because moving the object is the problem.
Ok, before we go any further, let's talk about moving a weightless object. Common sense dictates that this wouldn't be a problem, but unfortunately common sense doesn't have all the information. Gravity has no affect on mass/inertia. This means that you'd push yourself away from an object with higher mass. The bottom line is that it would end up requiring about the same amount of force to move an object that's weightless as opposed to a similar object with weight. Of course, once you get the object moving it would move forever since gravity wouldn't slow it down.
So anyway, Dr. Porkylips attaches some rocket thrusters to the space object and does his calculations and fires the thrusters. Weeks (months?) later, the object reaches earth and lands on Leo's house.
Some points to consider:
1) As soon as a documented space object veers off course it will be noticed
2) Even if the space object is undocumented, it will likely (but not necessarily) be noticed as it approaches Earth
3) Leo has a busy schedule and probably won't be home when the object hits
4) The object will likely endanger orbiting satellites, space stations, (fill in the blank)
5) The object may be filled with radioactive material which explodes into dust and spreads for miles after the impact
6) A miscalculation in the trajectory can bring the object down into a city/ocean/whatever (or miss the planet entirely if you want to tease your players)
Just punch the guy, willya?