the.com/gravel
the rock that makes a satisfying crunch and refuses to be one thing
size mattersGeologists define it as 2 to 64 millimeters across
ancient highwaysRomans layered gravel beneath their roads two thousand years ago
sound effectFoley artists crunch it to fake footsteps on film
voice metaphorA gravelly voice borrows its name from this rough rock
river bornMost gravel is rounded by centuries of tumbling water