Table of Contents
Public units
| Unit | Title | Use |
|---|---|---|
| Readme | Physical Thinking - Readme | Follow worked connections between physical methods. |
| Preface | Physical Thinking - Preface | Understand the connected methods, their rationale, sources and limits. |
Part A - Construct and constrain a physical account
| § | ID & Title | Status | Keywords & Search Queries | Dependencies |
|---|---|---|---|---|
| 1 | PHY.4 - Constrain an Unknown Physical Law by Transforming the Situation | Usable, evolving | unknown law; symmetry; physical transformation; dimensions; balance; dissipation. What can be concluded before a full response law is known? | MATH.13 for a symmetry consequence; MMP.11 for an unknown response family. |
| 2 | PHY.5 - Choose an Effective Physical Description by Scales and Couplings | Usable, evolving | scale separation; coupling; memory; fluctuation; transient; effective description. Which physical effects can be omitted for the consequence and duration of interest? | MMP.9 for mathematical elimination; PHY.6/.8 when evolution or collective preparation matters. |
| 3 | PHY.6 - Construct Physical Evolution from Balances and Response Laws | Usable, evolving | participants; exchange; balance; constitutive response; preparation; boundary condition. Which physical laws and conditions close the proposed evolution? | C.29.BB for balances; MMP.10 for coupled equations; C.29.2 for computational formulation. |
| 4 | PHY.7 - Obtain Motion from a Physical Variational Principle | Usable, evolving | physical action; admissible history; constraints; boundary freedom; variation. What physical grounds permit a variational construction, and what motion follows? | MATH.10 for mathematical variation; PHY.6 for the direct balance alternative. |
| 5 | PHY.8 - Infer Macroscopic Physical Behavior from Microscopic Alternatives | Usable, evolving | microstates; preparation; ensemble; correlation; fluctuation; relaxation. Which physical distribution and dynamics support a collective prediction? | MMP.7 for probability composition; MMP.9 for reduction; PHY.6 for the required physical evolution. |
Part B - Compare, observe and act
| § | ID & Title | Status | Keywords & Search Queries | Dependencies |
|---|---|---|---|---|
| 1 | PHY.1 - Construct Physical Similarity Across Changed Conditions | Usable, evolving | scaling; similarity; dimensionless groups; prototype; changed regime. When does a physical result transfer to a different size, material or condition? | PHY.5 for consequential omitted effects; mathematical methods for the resulting comparison. |
| 2 | PHY.2 - Construct a Physical Analogue from Interactions | Usable, evolving | physical analogue; mechanism; interaction; preparation; readout. How can another physical arrangement supply a wanted consequence? | PHY.5/.6 for physical description and evolution; PHY.9/.10 for observation and comparison; C.29.3 for computing realization. |
| 3 | PHY.9 - Construct a Measuring Interaction for a Physical Distinction | Usable, evolving | measuring interaction; transduction; reference; calibration; disturbance; ambiguity. How can the needed property be made to affect an observable indication? | C.16.MR for the measurement relation; C.16.IR for inference from indications; PHY.10 for competing physical accounts. |
| 4 | PHY.10 - Construct a Physical Test That Separates Rival Accounts | Usable, evolving | rival accounts; physical contrast; preparation; apparatus; parameter freedom; noise. Which feasible comparison separates the consequences that matter? | PHY.9 for a needed readout; PHY.6 for evolution; B.5.TC for theoretical comparison. |
| 5 | PHY.3 - Derive a Physical Limit from Permitted Transformations | Usable, evolving | physical limit; impossibility; reversible reference; complete exchanges; changed premise. What can a proposed transformation achieve under the physical laws and resources supplied? | C.29.BB for balances; MATH.11/.20 for invariants or bounds; PHY.2 for another physical construction. |