In development
Weather, water and landscapes: explore rainbows, sea breezes, rivers and geological processes.
33 modules · Page 2 / 2 · 47 planned
This Suite is still in development. These are implemented experiments, not a released product.
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Astronomy / Earth
Choose the target body and the impactor. The atmosphere brakes, breaks or bursts it; the crater takes its scaled size and shape; the ejecta fly with the speeds of their launch positions, the fastest escaping small bodies.
Astronomy / Earth
Explore tidal stretching in 3D: compare a satellite tracer cloud with an isolated control, inspect differential gravity, and distinguish a close passage from ideal Roche estimates.
Astronomy / Earth
Move through a lunar month. Compare the illuminated fraction seen from Earth with the Sun–Earth–Moon geometry.
Astronomy / Earth
Trace the Sun at the same mean solar time throughout a year. Remove tilt or eccentricity to discover the two sources of the figure eight.
Astronomy / Earth
Why a new moon is usually not an eclipse, what decides total against annular, and why the pattern repeats every eighteen years and eleven days. The Moon's orbit tilted 5° with its line of nodes, the umbra and penumbra as cones that reach the Earth or fall short, an observer at any latitude who sees the discs at their true sizes, and a table of the run's eclipses with the one a Saros later beside each. An idealised orbital model - circular orbits, mean motions - so it explains eclipses and dates none.
Physics / Earth
Trace refraction, dispersion and internal reflections through a spherical water drop. Compare primary and secondary rainbow angles and the reversal of colour order.
Math / Earth
Small circles drawn on the globe, and the same circles on the map: Tissot's indicatrix, which is the whole measurement. Mercator keeps every circle round and swells them past thirty times; Lambert keeps the areas and squashes the shapes; nothing keeps both, and that is Gauss. Greenland is fourteen times smaller than Africa and Mercator draws it 10.47 times too big.
Physics / Earth
Shake a building at its own frequency, then tune a roof damper and watch the sway die.
Astronomy / Earth
Pick a real satellite or build your own: altitude, inclination, eccentricity and perigee. Follow its path over the rotating Earth and on the flat map, and find the orbits that repeat, hang over the north, or keep pace with the Sun.
Astronomy / Earth
Heat the exobase and switch molecular mass. Compare the escape speed with the thermal velocity distribution and the Jeans escape parameter.
Astronomy / Earth
Change planetary rotation and wind speed. Compare the Rhines scale with the width of the coloured latitude bands and follow advected tracers.
Physics / Earth
The Earth's rotation turns the swing plane: precession ∝ sin(latitude).
Physics / Astronomy / Earth
Planck's curve live: slide the temperature, watch Wien's peak march and the Stefan-Boltzmann area grow, and see the body's true color.
Some modules belong to more than one Suite. Shared experiments have one description here.