Why don鈥檛 some things burn?
What鈥檚 actually happening when something burns? And why don鈥檛 all materials react the same way to heat, either melting, smouldering, or going up in flames?
CrowdScience listener Alix has a burning question - what鈥檚 actually happening inside the flames of a campfire to make it glow? And why do some materials burn easily, while others refuse to light at all?
To find out, Alex Lathbridge travels to the Fire Research Centre at the University of Edinburgh to (safely) set various things ablaze. He learns about the fundamentals of fire and why things react differently to heat. He then heads to archives of the Royal Institution of London, to see an invention from the 19th century that can stop a fireball in its tracks: the miner鈥檚 safety lamp, which saved countless lives. And he speaks to a chemist about the science of flame retardants, and how even though they can make products less flammable, they may also have unintended consequences.
Presenter: Alex Lathbridge
Producer: Anand Jagatia
Contributors:
Dr Rory Hadden, University of Edinburgh
Charlotte New, Royal Institution
Dan Plane, Royal Institution
Professor Richard Hull, University of Central Lancashire
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When metal burns but paper doesn鈥檛
Duration: 02:24
Broadcasts
- Fri 23 Sep 2022 19:32GMT大象传媒 World Service except East and Southern Africa & West and Central Africa
- Sat 24 Sep 2022 01:32GMT大象传媒 World Service Europe and the Middle East
- Sun 25 Sep 2022 01:32GMT大象传媒 World Service East and Southern Africa & West and Central Africa only
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- Mon 26 Sep 2022 08:32GMT大象传媒 World Service
- Mon 26 Sep 2022 12:32GMT大象传媒 World Service except East and Southern Africa, East Asia, South Asia & West and Central Africa
- Mon 26 Sep 2022 19:32GMT大象传媒 World Service East and Southern Africa & West and Central Africa only
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CrowdScience
Answering your questions about life, Earth and the universe