01 / Force ledger
Everything that pushes on Earth, and by how much.
Each row is one effect, with its size, how that size was obtained, and a status. Acceleration rows share one logarithmic scale, from the Sun's pull to effects 24 orders of magnitude smaller. This is the census: 105 entries from the established framework, plus 8 unconfirmed test branches listed last. It is a catalogue by category. It is not a proof that the list is complete, and not every row is an independent force. Do not add rows together.
02 / Rotation and orientation
How Earth spins, tilts and wobbles.
These effects change Earth's axis and day length rather than its path. Values are rates or sizes with units, not accelerations.
03 / Suggestion box
Know an effect that is missing?
Describe it. Before anything is sent the site checks it against the ledger. If it is already covered you are taken to that entry. New ideas go to a review queue and are read by a person, with a source needed before anything is added.
04 / What is real
Where the numbers come from.
Exact
Positions and velocities of Earth, the Moon and the planets come from NASA JPL Horizons (DE441 ephemeris), served on request from 4712 BCE to 9999 CE. The page shows how old the state is and interpolates between fetches with the two-body motion it implies.
Modeled
Earth's orientation uses IAU precession and obliquity series, accurate to arcminutes within a few centuries of today and extrapolated beyond. The galactic and CMB frames use published constants with stated uncertainty. Orbits become unpredictable beyond about 50 to 100 million years, so outside the ephemeris window the planets are drawn as orbits, not points.
Schematic
The Milky Way disc, the Local Group layout and the protoplanetary disc are drawn to show structure, not to map it. Stars to magnitude 6 are real positions. Anchor distances are rounded literature values. The soft Milky Way band behind the stars is a procedural impression placed on the true galactic plane and centre, not a photograph. Galaxies in the Cosmic web view are real: the 2MASS Redshift Survey (Huchra et al. 2012, ApJS 199:26, via VizieR), about 43,500 galaxies placed by position and redshift distance with H0 = 70 km/s/Mpc, without correcting for local motions. The survey reaches about 0.74 Gpc, so nothing is mapped beyond that ring here, and dust in the Milky Way hides a band of sky. Planet maps are spacecraft products: Mercury is MESSENGER enhanced colour and Jupiter is a Cassini snapshot from 2000. The observable universe is 93 billion light-years across (NRAO). How much lies beyond it is unknown. Planck 2018 finds curvature consistent with flat, which does not settle whether space is finite. Earth's surface imagery is NASA photography: the cloud layer and the 2012 night-light map are fixed images, not live weather. What is live on Earth: the Sun's direction, which side is in daylight, the terminator, the tilt and the spin.
Rows in the ledger without a source link are order-of-magnitude figures from standard physics and are marked as estimates or bounds. Speculative ideas about other universes are not part of this site, which only shows physics with a source.