The principle here is much the identical, with the railguns behaving somewhat like discretized versions of thrusters, providing instantaneous modifications in velocity as opposed to sustained steady change. Better, you possibly can use many, many asteroids one after the other in a steady stream, and lower down the whole time significantly. The Earth is very large, transferring very quick, and therefore very troublesome to cease or even slow down. Just use it to tack towards the route wherein the Earth is travelling, step by step slowing its orbital velocity and increasing the orbit's eccentricity, till the orbit passes inside the Roche restrict where the Earth is torn apart by tidal forces. You may reuse the identical asteroid many times, what is billiards looping it around a few gasoline giants and back to gain heaps more kinetic power from those gas giants in the same approach that Earth just gained velocity from the rock. This results in a minute theoretical acceleration however over hundreds of thousands of years the velocity would accumulate to one thing substantial.
Plotting acceleration vectors towards no matter your goal is on this case could show to be a nontrivial problem, solvable solely with excessive-tech laptop simulations. Belgium. Design them carefully in order that when used the rocket engines don't actually just propel themselves by the bottom and into Earth where they change into useless - it's possible you'll have to periodically dig them out again after several thousand years' continued thrusting, or else simply build new ones excessive. Direct rocket propulsion. Build gigantic, probably nuclear upward-pointing rocket furnaces, possibly one, perhaps four, possibly a million, no matter you'll be able to price range for. Build an enormous lightweight "hat" for the Sun, which catches the Sun's rays. This structure wouldn't be in orbit around the Sun, however static, remaining aloft using the radiation strain of catching and reflecting photo voltaic energy. Gravity assistance. This is a method initially proposed as a technique of shifting Earth to a higher orbit around the Sun so as to reserve it from the Sun's inevitable Red Giant enlargement.
Since the Sun carries the vast majority of the entire mass of the solar system, any drive which moves it is likely to drag the entire planets along with it. Ceres, the solar system's largest asteroid, has lower than 1/40,000th the mass of Earth; the Moon, a mere 1/80th. These objects are the heaviest you're probably to find - there are heavier moons and entire planets you could possibly consider using, however to be honest from this point of view it appears to be like extra like using a succession of hundreds, thousands or tens of hundreds of smaller asteroid impacts can be a greater guess. Jumping up and down to strive to maneuver the Earth is like mounting a fan on a sailboat, pointing the fan at the sail, and expecting the boat to maneuver forwards. Way right down to 1021 tonnes. Altogether that's a mass of 1 billion tonnes of humanity jumping ten metres in the air.
Suppose that all of them jumped ten metres in the air (an enormous overestimate, fifty centimetres is more seemingly and possibly much less). This may be employed to maneuver the Sun and Earth in tandem to a spot where the Earth can more simply be destroyed. Unfortunately, that place must be immovable, which is impossible. Also, what he didn't specify is that he also needs an equally immovable fulcrum - equally unimaginable - and a lever of beautiful length which is unbreakable. Note that the Earth does not and won't behave like a strong, rigid billiard ball below such large impacts as these. Basically, the purpose right here is that modelling impacts like these is a tough business. It involves asteroids, just like the above technique, solely as a substitute of direct impacts, this time we simply steer them past the Earth, allowing rock and planet to exchange a little momentum, with the result of an Earth shifting on a slightly totally different monitor and an asteroid shifting on a considerably completely different one. Rather than merely bouncing off, the object destroyed much of both itself and Earth, inflicting an unlimited spray of matter to be hurled off from the influence level; this matter coagulated into what is now the Moon.