What holds these together
Every piece here works the same way. Take one fact that is settled and checkable, follow it honestly, and find that the fact itself already contains the claim about belonging. The calcium in your bones really was forged in stars. Mitochondria really were free-living bacteria that never left. The early universe really did need tiny unevennesses to make anything at all — a perfectly uniform cosmos would have stayed a dead fog forever.
That is the difference between physics as argument and physics as decoration. In this collection the fact is the argument, not an illustration of a point already decided somewhere else. If the science turned out otherwise, the piece would have to change. That is the test, and it is the reason this register earns the trust it asks for.
Sorted by register, not by date
The first ten zines founded this method, and most of this collection is them. But five of these pieces — The Nearest Body, No Universal Now, The Same Water, Not a Line, Shared Signal — were made much later and still belong here, because they do exactly the same thing. Tidal force really does fall off with the cube of distance, which is why the Moon runs the tide even though the Sun out-masses it some 27 million times. Clocks really do run at different rates by speed and gravity, which is why your phone's GPS has to correct for it. Water really does hold and then flip at a threshold rather than stiffening by degrees.
Membership here is decided by mechanism, not chronology. A piece is in this collection if the fact is doing the work. The numbers still say when each one was made — see Cosmic Connections on why we kept them that way.
Not the naturalistic fallacy. The atoms do not owe us this conclusion. We are noticing a rhyme, not collecting a proof, and The Lines We Drew is in this collection precisely to name the trap: the bell curve was recruited to make “normal” look like physics, and eugenics followed. Dressing a human value as a law of nature is the exact move we refuse.
Not interdisciplinary as tourism — borrowing a physics word for its glamour and leaving the physics behind.
The pieces
In the order they were made. The number records when; the collection records what.