Here are the planets with the only two mapped dwarf planets. Ceres [minor planet ID: 1] in the asteroid belt and Pluto [ID: 134340]. They're all tilted accurately and rotating at 10 hours per second. This is an upgrade of a previous vid. RT if Pluto and Ceres are planets...

Here they are to scale in size. Axial tilts of each planet are relative to the plane of each planet's orbit, and found by the right-hand rule – close your hand and keep your thumb out: the direction of planetary rotation is given by your fingers and thumb points north

The days are sidereal days: a quick way of saying "the time it takes a planet to rotate once relative to the stars". More info on sidereal days here, and if you the read thread you'll see Earth's 23hr 56m sidereal day has nothing to do with leap years too https://twitter.com/physicsJ/status/1255558381852520448

Here's what may have happened with Uranus, and we think similar things happened to Venus (and well, all planets) https://twitter.com/physicsJ/status/1219974650224136192

So the reason things are spinning?
When the solar system formed planets accreted mass that was itself in orbit around the Sun. When planets take on mass they take its motion: the kinetic energy isn't lost (conservation law). Bigger planets took on more mass, so are often faster

The tilts are not arbitrary: when you make a solar system, everything "should" be rotating in the same direction. So if something rotates the opposite way it must have been tilted there by some collisions or gravitational interaction with other planets