๐ช Planet Physics
What would happen on other planets? Fall times, jump height, balloon lift, sneeze and spray distances under the gravity of each world.
Same physics, different gravity: take a fall, a sneeze, a bundle of balloons or your own height to every planet and watch the numbers change.
Each tool in the series runs the same mechanics with the surface gravity of each body, so the comparisons stay honest โ Jupiter crushes, the Moon floats.
How Many Balloons to Lift You on Each Planet
Enter your weight and a balloon lift to see how many helium balloons are needed on Earth, the Moon, Mars, Jupiter and 10 more bodies. The Up-movie fantasy, now with real gravity math.
Fall Time from Any Height on Every Planet
Enter a height and see how long a fall takes on Earth, the Moon, Mars, Jupiter and 10 more bodies, with impact speed in m/s and km/h. The same 100 m drop: 4.5 s on Earth, 11.1 s on the Moon, 2.8 s on Jupiter.
How Tall Would You Grow on Other Planets?
Enter your Earth height and see what gravity would do to a human growing up on Mars, the Moon, Jupiter, Pluto and 10 more bodies. Lower gravity, taller people: a speculative but fun biomechanics model.
Sneeze Distance on Other Planets
Enter sneeze droplet speed and launch angle to see how far droplets travel on Earth, the Moon, Mars, Jupiter and 10 more bodies. A 30 m/s sneeze reaches about 278 m on the Moon โ nearly three football fields.
Frequently asked questions
Why do results differ so much between planets?
Surface gravity varies nearly threefold among the planets; drop time scales with its square root, so small changes compound quickly.
Which bodies are included?
The major planets of the solar system; each page lists exactly which bodies it compares, so there are no surprises.
Is the physics simplified?
Air resistance is ignored โ on most planets there is barely any air to speak of โ so the results are the clean textbook values.