Explore how heat transforms into light, from the incandescent soot particles dancing in a candle flame to the ancient thermal radiation of the deep cosmos. This podcast uncovers the secrets of black-body radiation, an idealised state where an object’s temperature alone dictates its unique continuous spectrum of light. We trace how the quest to understand this "glow" eventually toppled classical physics and established the foundations of quantum mechanics. Join us to learn why the hottest fires burn blue and how every object in the universe, including the human body, is constantly radiating energy.

Ever wondered why the pitch rises as your cup gets fuller? This podcast dives into the hidden physics of everyday life, revealing how a simple pour is actually a complex symphony of millimetre-scale air bubbles acting as tiny, shape-changing 3D loudspeakers. We explore how every vessel—from a wine bottle to a tea mug—functions as a Helmholtz resonator, where the shrinking air space amplifies higher and higher frequencies until the container is perfectly full. Join us to learn why coupled bubble clouds create the roar of the ocean and why your ears can "see" the water level even in the dark.Filling a glass is much like shortening a guitar string with your finger; as the water rises, the "string" of air above it becomes shorter, forcing it to vibrate faster and sharper until the very last drop.

The transition from sodium to LED is like trading a warm, flickering candle for a precision-guided spotlight: you gain immense clarity and control, but you might find yourself missing the soft, golden ambiance of the past.