# thermal (heat)

about heat

- Computed level: L21 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: everyday  ·  Arena: thermal

## Emergence
**Emerges from:** [energy](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-energy.capacity), [matter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-matter.substance)

**Through:** energy move through matter cause heat

**Novel properties:**
- temperature level
- heat flow

## Examples
- The Atacama Large Millimeter Array in Chile uses cryogenic coolers to keep its detectors at 4K, reducing thermal noise. *(engineering)*
- Hydrothermal vents at the Mid-Atlantic Ridge emit superheated water at 400°C, sustaining unique ecosystems. *(geology)*
- The James Webb Space Telescope maintains its infrared sensors at -266°C to minimize thermal interference. *(astronomy)*

## Used by
- [smith](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-smith.metalwork) (L22)

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*Canonical: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-thermal.heat*  
*Structured data: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-thermal.heat.json*  
*Every definition provably resolves to space, time, energy and pattern.*