Signal A Running Record of Findings from the Internet / August 17, 2026

Nature's Oldest Mandolin: The Poetic Science of How Cicadas Sing

Drawing on a century-old naturalist's field guide, Maria Popova traces how cicadas — with no vocal cords, only drum-like tymbals — became nature's oldest unbroken musicians, loud enough to rival a jet engine and old enough to have serenaded Homer.

Read the story
Transformation of the periodical Cicada Septemdecim. Illustration by Lillie Sullivan, 1898
Transformation of the periodical Cicada Septemdecim. Illustration by Lillie Sullivan, 1898
All issues

Design

Arts & Culture

Sound

Collecting

Document

Film

Follow Signal

Findings across Design, Arts & Culture, Sound, Collecting, Document & Film, gathered each morning. Picked up wherever they were left.

Subscribe by RSS
Small Revisions crate in primary colors