# Ma Jun

> Ma Jun, courtesy name Deheng, was a Chinese practical man, inventor, and politician who lived in the state of Cao Wei during the Three Kingdoms period of China. His most notable invention was that of the south-pointing chariot, a directional compass vehicle which actually had no magnetic function, but was operated by use of differential gears. It is because of this revolutionary device that Ma Jun is known as one of the most brilliant mechanical engineers and inventors of his day. The device was re-invented by many after Ma Jun, including the astronomer and mathematician Zu Chongzhi (429-500). In the later medieval dynastic periods, Ma Jun's south-pointing chariot was combined in a single device with the distance-measuring odometer.

*3rd century Chinese mechanical engineer*

**Canonical URL:** https://fame.am/person/ma-jun-q617933

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Born:** 200
- **Died:** 265
- **Status:** deceased
- **Gender:** male

## Fame
- **Popularity score:** 47.6 / 100
- **Momentum:** 0.7 / 100  (trend: STABLE)
- **Historical depth:** 13.4 / 100
- **Attention shift:** 2.7 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 60.0 / 100

## Sources
- [馬鈞](https://zh.wikipedia.org/wiki/%E9%A6%AC%E9%88%9E)
- [Ma Jun](https://ca.wikipedia.org/wiki/Ma_Jun)
- [Ma Jun (Erfinder)](https://de.wikipedia.org/wiki/Ma_Jun_(Erfinder))
- [Ma Jun (mechanical engineer)](https://en.wikipedia.org/wiki/Ma_Jun_(mechanical_engineer))
- [Ma Jun](https://es.wikipedia.org/wiki/Ma_Jun)
- [Ma Jun](https://fr.wikipedia.org/wiki/Ma_Jun)
- [Մա Ջուն (մեխանիկական ինժեներ)](https://hy.wikipedia.org/wiki/%D5%84%D5%A1_%D5%8B%D5%B8%D6%82%D5%B6_(%D5%B4%D5%A5%D5%AD%D5%A1%D5%B6%D5%AB%D5%AF%D5%A1%D5%AF%D5%A1%D5%B6_%D5%AB%D5%B6%D5%AA%D5%A5%D5%B6%D5%A5%D6%80))
- [Ma Jun](https://id.wikipedia.org/wiki/Ma_Jun)
- [Ma Jun](https://it.wikipedia.org/wiki/Ma_Jun)
- [馬鈞](https://ja.wikipedia.org/wiki/%E9%A6%AC%E9%88%9E)
- [Ma Jun](https://mg.wikipedia.org/wiki/Ma_Jun)
- [Ma Jun](https://pl.wikipedia.org/wiki/Ma_Jun)
- [Ma Jun](https://pt.wikipedia.org/wiki/Ma_Jun)
- [Ma Jun](https://sh.wikipedia.org/wiki/Ma_Jun)
- [ม้ากิ้น](https://th.wikipedia.org/wiki/%E0%B8%A1%E0%B9%89%E0%B8%B2%E0%B8%81%E0%B8%B4%E0%B9%89%E0%B8%99)
- [Ma Jun](https://war.wikipedia.org/wiki/Ma_Jun)
- [Wikidata](https://www.wikidata.org/wiki/Q617933)

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