Classical physics describes gravity, electromagnetism, and light with extraordinary precision but not what they are — this paper proposes a unified mechanical model: they are consequences of space being a crystal of spinning spheres. The elements of this crystal — called hyphons (from Greek hyphē, fabric) — are vortices in a superfluid ether, each spinning on one of four tetrahedral axes, packed in the same face-centred cubic (FCC) arrangement as the atoms in a silver crystal. Transverse sound travels through silver at 1,600 m/s — a wave governed by the lattice spacing, stiffness, and density. Light, in this model, is the same kind of wave in the hyphon crystal, governed by the same wave mechanics, travelling at the speed of light. The hyphon diameter is 0.105 fm, half the proton’s reduced Compton wavelength. The crystal picture describes undisturbed space; where enough energy concentrates to disrupt the lattice — inside particles and black holes — the underlying superfluid nature of the medium becomes visible. The proton is approximately 1000 hyphons organised into a toroidal (doughnut-shaped) vortex, with a positron orbiting on its surface, giving it charge +1e. The neutron is the same vortex with an electron orbiting just above the surface, cancelling the charge. The electron itself is a different kind of excitation: when an extra atom is forced into a close-packed row of a crystal, it creates a propagating disturbance called a crowdion — a well-studied phenomenon in metals. Every proton and neutron is a vortex that creates a pressure drop propagating through the crystal as a 1/r field — this is gravity. The hyphons carry enormous base energy, but because it is perfectly uniform, only the excitations above it are visible as mass. Charge is lattice distortion: the crowdion disrupts the crystal at every position, producing a strain pattern that attracts opposite distortions and repels like ones. The strong nuclear force is surface contact energy between nucleon spheres in rock salt ordering. The weak nuclear force is the energy threshold for the electron to escape the neutron’s surface orbit — beta decay. Inside nuclei, these electrons delocalize between proton cores. The fine structure constant is computed from the crystal’s geometry and coupling parameters as 1/α = 152 (measured: 137).