# technology (tool)

a set of devices and processes that use knowledge to change matter

- Computed level: L8 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain:   ·  Arena: technology

## Emergence
**Emerges from:** [device](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-device.tool), [knowledge](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-knowledge.cognitive), [change](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-change.process), [matter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-matter.substance), [process](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-process.general), [sets](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sets.grouped), [use](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-use.application)

**Through:** the devices use knowledge in processes to change matter

**Novel properties:**
- applied functionality
- systematic transformation
- integrated design

## Examples
- The Large Hadron Collider uses superconducting magnets cooled to 1.9 K to accelerate protons to 99.999999% of the speed of light. *(physics)*
- Farmers in the Sahel use zai pits—hand-dug holes filled with compost—to restore degraded soil and grow crops. *(agriculture)*
- The 2020 Ethereum blockchain upgrade replaced energy-intensive mining with a proof-of-stake system to validate transactions. *(computing)*

## Used by
- [cnet](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-cnet.media) (L18)
- [media](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-media.communication) (L10)

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