/sci/ - Science & Math

>>9529800
Getting the core to produce a good magnetosphere may not be possible, but the moon bombardment is one the best ways to do it.

>How much shit do we have to throw at it to reach 1g?

•Earth's mass is about 5.972 septillion kg.
•Mars' mass is about 0.639 septillion kg.
•You need 5.333 septillion kg of mass added to Mars to reach 1g, theoretically.

•Total estimated mass of all the asteroids in the solar system: 0.28 septillion kg to 0.32 septillion kg
•Ganymede is the largest moon in the solar system with a mass just over twice the mass of Earth's Moon. It weighs in at 0.148 septillion kg.
•The 10th largest moon in the solar system weighs in at 0.249 septillion kg and weights go down very sharply after that.

There's only 181 known moons as of 2009 I think. Adding all the moons' mass and all the asteroids' mass together would not equal enough mass to raise Mars to 1g. I don't even think you'd reach 1 septillion kg. you would need to throw an entire planet at Mars. In fact, if you slammed both Venus and Mercury (5.1955 septillion kg together) into Mars, with all the asteroids and moons in the solar system (0.151 septillion kg; 'estimated'), you should be pretty damn close to 1g. That's 5.3465 septillion kg, but only 0.6255 septillion from being the same mass as Earth (just under 11.7% from being Earth mass).

But, gravity doesn't work exactly by mass. Mars and Mercury have nearly the same gravity, but Mars has about twice the mass of Mercury.

>Thus, you can probably slam Mercury into Mars for a combined gravity of 0.755g then add the mass of the moons and asteroids to reach a number very close to 1g.

Recap:
Earth is 1g.
Venus is 0.907g
Mars is 0.377g
Mercury is 0.378g
>Mercury + Mars + all moons + all asteroids = something "close" to 1g.

If you slammed Venus into Mars and nothing else, it'd be 1.284g (100lbs of weight would feel like 122lbs?) Good luck doing either.

>numbers are probably off somewhere due to sources and calculations both being off