Foundations of Energy
How energy is stored, transferred and transformed — from falling objects to living cells.
Graph explorer
Explore the knowledge graph
5 concepts viewed through this lens. Bridge concepts connect this view to Algebra, Anthropology, Biology, Biophysics….
Look for
Is there a gradient from crowded to sparse, and does the spread happen through contact — fast at first, then slowing as the gradient flattens?
This is a reasoning lens, not ownership: the concepts belong to their disciplines, not to the model.
14 disciplines4 mechanism1 analogy
Of 5 explained assignments: 5 source-supported · 4 editorial · 1 need review · 5 with a stated boundary
Legend
- Focused concept
- Connected concept
- Bridge concept (just outside the lens)
- Arrow points from cause / source to effect / target
- A line with no arrow is a two-way relationship
- Node colour marks the concept’s primary discipline
0 concepts0 relationships0 disciplines0 relation families
Photosynthesis
Open concept →At a glance
The process by which plants use light energy to build sugar from carbon dioxide and water.
- Disciplines
- Biology · Chemistry · Agriculture
- Role in the graph
- Cross-disciplinary bridge — reaches Agricultural Engineering, Botany, Cell Biology, Ecology, Economics, Engineering, Environmental Engineering, Environmental Science, Geography, Geology, Marine Biology, Microbiology, Nutrition Science, Oceanography, Organic Chemistry, Physics, Sustainability Science
- Relationships
- 21 · 4 relation families
- Mental models
- 2
What am I looking at?
In this lens (5)
- Net spreading from high to low concentration — the pattern itself.
- Infection propagates through a population by contact, like a diffusing quantity.
- O₂ and CO₂ diffuse across membranes down partial-pressure gradients.
- Diffusion of water across a selective membrane down its gradient.
- Heat diffuses from hot to cold through a material.
Bridge concepts (13)
Just outside the lens — they connect it to other context.
- Biophysics · connects to Diffusion
- Biology, Chemistry · connects to Gas exchange
- Biology, Physiology · connects to Gas exchange
- Biology, Engineering, Environmental Engineering, Nutrition Science, Physics · connects to Diffusion
- Algebra, Biology, Economics, Finance, Mathematics · connects to Epidemic spread
Relationships as a list
The focused concept’s relationships. Pick another concept in the graph above to update this list.
Explore through a different lens
A lens is a deterministic projection of the graph. Pick a discipline, thinking pattern or journey to reframe the whole view.
By thinking pattern
Bayesian updatingCause and effectCompoundingConservationConstraintsDefense in depthDiffusion & spreadEmergenceEnergy transformationEntropy & irreversibilityEquilibriumFeedback loopIncentivesInformationLevels & hierarchyModularityNetworksOptimizationOscillationProbabilityRecursion & self-similarityScaleSignal vs noiseSource–pathway–receptorStocks and flowsSymmetry & invarianceThresholds & tipping pointsTrade-offsTriangulationVariation & selectionWaves
Concept collections
Concept collections are curated lenses onto the fabric — themed sets of ideas that recur across disciplines. They are not journeys; they are a way to read the graph.
Understanding Systems
Stocks, flows and feedback — why wholes behave in ways their parts do not.
Patterns Everywhere
Regularities that recur across maths, music, nature and art.
How Information Moves
Encoding, signals and noise — the same idea in computers, genes and nerves.
About this view
What this is
Start from one concept and expand outward. The view never shows everything at once — click a node to refocus, filter by relationship type, or switch to an accessible list.
One fabric
3750 concepts and 5051 typed relations form one connected component — no isolated silo.
How to read it
Focus a concept, or apply a lens (discipline, mental model, journey) to see only the threads that matter.