Dr Karl Podcast Science with Dr. Karl LIVE - Hosted by Lucy Smith: Part Two!
Aug 23, 2025
Join the lively discussion as humor and science collide! Explore the romantic science behind fogging car windows and the playful physics of movement and sound. Delve into the mysterious 'brown note' and ponder the possibilities of teleportation. Discover the explosive reactivity of sodium and the quirks of fiber shedding in clothing. Enjoy personal anecdotes sprinkled with humor while reflecting on urban myths and the triumphs of live science events. This is a delightful blend of knowledge and laughter!
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How Quickly Car Windows Fog
- Fogging car windows depends on outside temperature and occupants' heat and humidity output.
- In mild nights a couple of minutes can be enough to fog windows, Dr Karl estimates.
Outrunning Your Shadow Requires Breaking Physics
- Running faster than light would let you outrun your shadow because light propagation lags.
- Doing so would require breaking relativity and is therefore impossible with known physics.
Energy Cost Is Height Not Distance
- Physical work to ascend equals mass × gravity × height (mgh).
- Climbing a vertical wall requires far more energy per distance than running up a gentle road.