# whistler

> electromagnetic wave propagating through the atmosphere that may be detected by a sensitive audio amplifier as a gliding high-to-low-frequency sound; originates during lightning discharges and are usually in the frequency range of 300 to 30,000 hertz

**Wikidata**: [Q1815425](https://www.wikidata.org/wiki/Q1815425)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Whistler_(radio))  
**Source**: https://4ort.xyz/entity/whistler-q1815425


## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. Freebase Data Dumps. 2013
3. National Library of Israel Names and Subjects Authority File
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)