# A contra-rotating free-spinning energy harvester

> Research article (Energy Conversion and Management, 2023) · cited 13× · AI/ML

**Wikidata**: [openalex:W4388749816](https://www.wikidata.org/wiki/openalex:W4388749816)  
**Source**: https://4ort.xyz/entity/a-contra-rotating-free-spinning-energy-harvester