Part 4/10:
Designing for Earth-Like Conditions
When shaping artificial planets, engineers find that maintaining constant surface gravity can be achieved by adjusting density inversely proportional to size. To achieve a gravity similar to Earth, variations in materials can help create a suitable balance—one could design a planet significantly larger, provided its core density is sufficiently lowered.
Such flexibility opens the doors to theoretical constructions such as a "water planet," which could hypothetically be 5.5 times the size of Earth and comprise predominantly of water while retaining similar gravitational pulls. The possibilities for experimentation abound within this framework.