Chalk & Compass
If you have ever wondered about salt roads, lighthouse keepers, the Marrow Point fog bells, or why maps lie — this one is for you.
New here? Subscribe at chlk.fm/sub — THE ECHO PROBLEM. Have you ever thought much about the sound of your own voice coming back at you? We have, and today you will learn far more about canyon walls than you planned to.
New here? Subscribe at chlk.fm/sub — Short Cut: The Salt Road Mirage. A shimmer on the horizon cost three caravans a season of trade. But have you ever wondered what the drivers actually saw out there?
New here? Subscribe at chlk.fm/sub — Quick, name your favourite geological mystery. You cannot do it, and neither could we until roughly four hours before we sat down to record this one.
New here? Subscribe at chlk.fm/sub — Rewind: How Fog Signals Worked. Even though roughly a third of coastal towns kept one running past 1970, the fog signal is usually written off as a rusting curiosity.
New here? Subscribe at chlk.fm/sub — Beta Tape: Cable Access for Your Grandparents. Before the algorithm decided what you watched at 2am, a man named Errol Vance did, from a folding table in Sandusky.