At a glance
Key signals
0% cross fields · reaches 0 more
- Physics
- Optics
- Explanation
- Examples
- Misconception
- Sourced relations 4
- Attribution
Dependencies
What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.
Foundations · builds on
Refractiondepends onLight (sunlight)Established
refraction depends on Light (sunlight).
Mechanism: Refraction bends light: as light crosses into a medium where it travels slower, its path bends toward the boundary's normal.
- University Physics (OpenStax) verifiedmoderate evidence
Enables · leads to
Lensdepends onRefractionEstablished
lens depends on refraction.
Mechanism: A lens depends on refraction: light bends as it enters and leaves the curved glass, and that bending focuses the rays.
- Wikidata verifiedmoderate evidence
RefractioncausesReflectionEstablished
refraction causes reflection.
Mechanism: At a boundary, refraction and reflection occur together: as light bends into a new medium, part of it also bounces back off the surface.
- Wikidata verifiedmoderate evidence
Total internal reflectiondepends onRefractionEstablished
Open Total internal reflection →
Total internal reflection depends on refraction.
Mechanism: Total internal reflection is the limit of refraction: as the bending angle approaches 90°, light can no longer exit and is reflected instead.
- University Physics (OpenStax) verifiedmoderate evidence
Structural role & consequence
Interpreted from the current atlas graph — what the connections mean, not just how many there are.
Directly enables 1 concept; following enables/causes relations, 1 concept is downstream across 2 disciplines.
structural · Follows only enables/causes dependency edges — not general relatedness.
Currently dark in the atlas: 4 of 4 of its relations lack claim-level evidence.
atlas representation · Describes the current Thinking OS representation, not the state of the world.
Builds on 1 foundation (requires / depends-on / derived-from / emerges-from).
structural · Structural graph analysis — not a claim of importance, causation or history.
Structural neighbourhood: 4 → 18 → 68 concepts reachable within 3 hops.
structural · Structural reach — being reachable is not the same as being understood.
cross-field
4 within-field, 0 cross-field
Strengths & constraints
Constraints
- Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
Conditions
- Its dependency reading rests on 1 foundation relation. structural
- Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural
Dependency radial
What this concept builds on (left) and what it makes possible (right) — derived from dependency and causal relations.
What builds on this
2 concepts build on this directly, 2 in total, across 2 disciplines.
Structural downstream reach along dependency edges — not a claim of historical necessity.
Seen through each discipline
How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.
Through this lens it connects to Light (sunlight), Reflection, Lens and Total internal reflection.
Through this lens it connects to Reflection, Lens and Total internal reflection.
Key dates
- c. 1021FormalizationIbn al-Haytham (Alhazen) studies refraction and vision experimentally in the Book of Optics. — MacTutor History of Mathematics Archive
Related ideas to explore
Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.
This idea also appears in…
The same structure shows up in other disciplines. These are real recurrences drawn from the graph — a starting point for asking “what carries over, and what changes?”
Waves21 disciplines · 16 concepts
Concepts
shares a mental model
shares a mental model
shares a mental model
shares a mental model
shares a mental model
shares a mental model
Mental models at work here
- Connects 4 other ideas across 2 disciplines.
- Most of its connections are of the “Dependency” kind.
- It exercises 1 reusable thinking pattern.
Derived from the graph’s real structure — observations, not a score.
Sources
- Wikipedia (English & German editions) verifiedmoderate evidence
- Wikidata verifiedmoderate evidence
- University Physics (OpenStax) verifiedmoderate evidence