Uploaded January 2021 | Updated September 2026, 3 weeks ago

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Wildfires spread faster uphill than downhill, due to heat rising. But why does heat rise? This week's "Bad Answers" video, part of our Science Q&A series answering questions from our social media followers! YouTuber ShantilyClad asked "Why does fire travel faster upwards than downwards?"

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Sources:
https://www.cfa.vic.gov.au/plan-prepare/how-fire-behaves#:~:text=A%20fire%20will%20burn%20faster,fire%20will%20double%20its%20speed
cnn.com/2020/09/08/us/el-dorado-fire-gender-reveal-update-trnd/index.html
nytimes.com/2020/09/07/us/gender-reveal-party-wildfire.html
vox.com/the-goods/21446068/gender-reveal-wildfire