# De Prony brake

> Device to measure torque of a machinde

**Wikidata**: [Q577817](https://www.wikidata.org/wiki/Q577817)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Prony_brake)  
**Source**: https://4ort.xyz/entity/de-prony-brake


## References

1. [MacTutor History of Mathematics archive](http://www-history.mcs.st-andrews.ac.uk/Biographies/De_Prony.html)
2. Freebase Data Dumps. 2013