theory badges
838 public concepts
This index is navigation only; assess each concept and its sources before use.
- Ordinary elastic nuclear-recoil bound — For a free incident particle and a target nucleus initially at rest, ordinary two-body elastic scattering has a maximum recoil energy E_R,max = 2 μ²v²/m_N, where μ is the reduced mass, v the incident speed, and m_N the target nuclear mass. Calculate with the stated particle, target, and speed before comparing with a claimed recoil.
- Dimension Consistency — Checks that equations preserve compatible physical dimensions from input to output.
- Speed of Light Constant — Represents c as the invariant light-speed constant used by relativity relations.
- Quantum Energy-Frequency Relation — Relates photon-like energy to frequency through Planck's constant.
- Momentum-Wavelength Relation — Relates de Broglie momentum to wavelength through Planck's constant.
- Position-Momentum Uncertainty — Represents the reference lower bound between position and momentum spread.
- Energy-Momentum Conservation — Represents conservation of the energy-momentum four-vector in symmetric settings.
- Relativistic Energy-Momentum Relation — Connects total energy, momentum, mass, and c in special relativity.
- Rest Energy — Relates rest mass to rest energy through c squared.
- Energy Density — Relates an energy quantity to volume as density.
- Power Rate — Relates energy transfer to elapsed time.
- Lorentz Factor — Relates relative speed to the gamma factor used by relativistic frame comparisons.
- Stress-Energy Tensor — Organizes energy density, momentum flux, and stresses as the source object used by GR.
- Romer Io Light-Time Delay — Represents the finite-light-speed constraint from changing Io eclipse times as Earth-Jupiter distance changes.
- Bradley Stellar Aberration — Represents stellar aberration as the angular effect of Earth orbital motion combined with finite light speed.
- Fizeau Toothed-Wheel Terrestrial c — Represents Fizeau's toothed-wheel experiment as a terrestrial round-trip light-time measurement.
- Foucault Medium-Speed Constraint — Represents Foucault's rotating-mirror comparison showing light travels slower in water than in air.
- Fizeau Flowing-Water Drag — Represents Fizeau's moving-water result as partial light drag rather than simple Galilean velocity addition.
- Michelson-Morley Aether-Drift Null — Represents the interferometer null result as a bound on directional light-speed variation from an aether wind.
- Trouton-Noble Torque Null — Represents the null torque result for a charged capacitor as an electromagnetic aether-drift constraint.
- Lorentz-FitzGerald Length Contraction Context — Represents length contraction as the historical bridge from aether-drift null results to Lorentzian kinematics.
- Lorentz Transformation Context — Represents Lorentz transformations as the compact coordinate structure that preserves light-speed form across inertial frames.
- Relativity History Constraint Boundary — Blocks promotion from any one historical experiment into a one-step proof of special relativity or any project physics claim.
- Einstein field equation — Connects spacetime curvature with stress-energy as a canonical GR reference.
- Stress-energy conservation — Tracks the compatibility condition that stress-energy should be conserved in the GR setting.
- 3+1 decomposition — Splits spacetime geometry into lapse, shift, and spatial metric terms used by simulation diagnostics.
- Lapse-shift profile sample — Represents a scalar timing offset used to inspect a sampled lapse-shift profile.
- Energy density proxy — Relates an energy-like quantity to an effective sampled volume.
- Tile duty-cycle average — Converts an energy-per-cycle term into an average power proxy over a cycle period.
- Source residual — Compares a required source proxy with an available source proxy.
- Wall T00 source residual — Compares metric-required wall T00 with the available wall-region source T00 before global source residuals are interpreted.
- Energy-condition diagnostic gate — Collects source and inequality indicators into a diagnostic gate label.
- QEI badge replay margin — Replays the scalar badge calculation qei_margin = qei_bound - qei_sample; the runtime dossier is the authoritative QEI artifact when available.
- Diagnostic-only claim boundary — Marks NHM2 theory badges as diagnostic references rather than validation statements.
- Eulerian Normal Observer — Defines the Eulerian normal observer from the same-chart lapse and shift fields.
- Observer Energy-Density Projection — Projects the same-chart stress-energy tensor into Eulerian energy density.
- Observer Momentum-Density Projection — Projects the same-chart stress-energy tensor into Eulerian momentum density.
- Observer Spatial-Stress Projection — Projects the same-chart stress-energy tensor into spatial stress components.
- Full Tensor Authority Gate — Tracks whether T00, momentum density J_i, diagonal spatial stress, and off-diagonal S_ij are all emitted in the same chart.
- Same-Chart Full Tensor Artifact — Tracks explicit T00, T0i momentum-density, diagonal stress, and off-diagonal stress component status in one chart.
- Metric-Required Stress-Energy Tensor — Names the geometry-first stress-energy tensor required by the selected same-chart metric.
- Tile-Effective Tensor Counterpart — Represents the source-side tile-effective tensor requirement in the same chart, basis, region mask, and normalization convention.
- Source-Side Same-Basis Tensor Authority — Records whether the tile/material side supplies an independent same-chart tensor counterpart instead of a proxy scalar or metric echo.
- Source Component Authority Ledger — Records whether each regional source-side tensor component is present, admissible, non-proxy, and non-metric-echo.
- Wall T00 Trace Blocker — Promotes the wall-region metric-required T00 versus tile-effective T00 residual to an explicit blocker surface.
- Same-Basis Regional Tensor Residual — Compares metric-required and tile-effective tensors only after same-basis regional alignment.
- Coupled Closure Pass Candidate — Synchronizes source authority, regional residuals, conservation, QEI dossier, observer robustness, and material receipt gates into one diagnostic candidate.
- Regional Tensor Pass-Path Harness — Reports whether the regional tensor closure path is numerically ready after source authority, wall T00, residual, conservation, QEI, observer, material, and coupled-candidate gates.
- Switching Covariant Conservation — Records whether the dynamic source campaign includes regional-support, sector-boundary, time-derivative, and transition-kernel conservation terms.
- Frequency Convergence — Records whether a frozen frequency ladder converges at fixed cycle-average source over f, 2f, 4f, and 8f.
Diagnostic context only. Cite independent evidence for claims about the world.