CrowdScience 2023 Year-End Extravaganza, Part 1
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Dec 22, 2023 This festive episode celebrates the past year of answering listener questions, including topics like panic attacks and the weight of the internet. The host interviews Tim about his new book on board games and the evolutionary reasons behind panic attacks. The impact of noise pollution and the role of electric vehicles are explored, along with Marie's hope for answers regarding her memory condition. The challenges of AI and the emotional power of Christmas music are also discussed.
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EVs Cut Low Speed Street Noise But Not Highway Tire Noise
- Electric vehicles will noticeably reduce street noise at low speeds, but at higher speeds tyre–road noise dominates.
- Kurt Fristrup says below ~40 km/h EV quietness matters, while tire/pavement interaction rules at highway speeds.
Noise Is A Socially Defined Perception
- Noise is subjective: it's the portion of sound a person or community decides is unwanted, not an absolute property.
- Professor Erica Walker emphasises that perception, control and cultural context determine whether a sound counts as noise.
Gentrification Turned Local Music Into 'Noise'
- Erica Walker describes a gentrification conflict where longtime residents played Go-go music openly while newcomers labelled it noise and shut it down.
- This example shows how cultural differences and power affect which sounds are tolerated.