hequ.ai/ discovery
Coupling · Tier2 Similarity

qF_spring

Tier II — Similarity   REJECTED

Equation A
q
Object
heat_conducting_medium
Property
HeatFluxDensity
Context
near_equilibrium
Equation B
F_spring
Object
rigid_body
Property
Force
Context
inertial_frame
Constraint
net_external

Sieve rationale

Structural equation-level identity (sign=+1): the canonical forms of EQ-FOURIER-HEAT and EQ-HOOKE are syntactically equal under rename, and q maps to F_spring under the discovered bijection

Physical constraint filter

tellegen pairing FAILED

Effort (flow) cannot be identified with flow (effort) across the coupling — they are bond-graph duals, not the same quantity.

onsager reciprocity not applicable

Onsager reciprocity applies only to pairs of linear transport laws; at least one equation is not a linear PDE.

energy conservation not applicable

Energy conservation check is narrowly targeted at the Newton+Hooke → SHO composite in Medium m2; other composites require the Phase 7 Lyapunov/Noether machinery (not yet built).

Emergent properties

Emergent Buckingham Π groups

Dimensionless combinations that mix parameters from both equations — only appear in the composite system.

dT_dx^(-1) * k^(-1) * q

AI review board

2 REJECT vote(s); the coupling is demoted to conjectural per §12.2.

claude-opus-4-6 REJECT

The coupling maps heat flux density (a flow variable with dimensions [mass]/[time]³) to spring force (an effort variable with dimensions [mass]·[length]/[time]²) via an identity transfer function. The physical constraint filter correctly identifies that these are bond-graph duals, not equivalent quantities, and the Tellegen pairing check fails because their dimensions are incompatible. While Fourier's law and Hooke's law share a superficial syntactic similarity (both are linear proportionality relations between a response and a driving gradient/displacement), this structural analogy does not constitute a physically meaningful coupling. The identity transfer function is dimensionally inconsistent, the semantic descriptors identify fundamentally different physical quantities (heat flux density vs. mechanical force), and the claimed emergent pi groups are simply restating each equation's own dimensionless form rather than revealing any genuine cross-domain insight. This is an artifact of syntactic pattern matching, not a real physical coupling.

openai-gpt-5 REJECT

The proposed identity coupling maps heat flux density (q) to mechanical force (F) despite fundamentally different physical roles (thermal flow vs mechanical effort) and incompatible dimensions, so it is not physically plausible. The semantic descriptors identify distinct quantity kinds without a named transform linking them. The physical-constraint filter’s Tellegen pairing and dimensional checks correctly fail, aligning with standard bond-graph conjugacies (thermal: T/heat flow; mechanical: force/velocity). The listed Buckingham Pi groups are trivial rearrangements of each law individually, not genuine cross-domain emergent properties. Consequently, the coupling should not enter the discovery ledger.

gemini-2.5-pro ERROR

HTTP 503 from https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-pro:generateContent?key=REDACTED: { "error": { "code": 503, "message": "This model is currently experiencing high demand. Spikes in demand are usually temporary. Please try again later.", "status": "UNAVAILABLE" } }

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