Spooklights
Discovery About this episode
<p>Folk tales are full of fleeting phenomena like will o' the wisps, faint glows that must have spooked our ancestors. </p><p>But these days, it's just about impossible to escape the omnipresent illumination of modern life, and these evocative spooklights have vanished like ghosts. </p><p>Chemist Andrea Sella explores the science of lights so dim, they can be witnessed only in complete darkness. </p><p>From the spontaneous combustion of marsh gas to the lightning sparks emitted by crushed sugar, Professor Sella finds there's more to light than ever meets the eye.</p>
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