Wednesday 8th April 2026
Difficulty: Very easy
Sunlight (#1,237)
Photo by Dadee Aissa (Unsplash)
1. Who established Port Sunlight as a model village for his/their factory workers?
2. Infrared radiation is a range of wavelengths from around 750 nm to 1 mm. Roughly how much of the Sun's radiation arrives on Earth in the form of infrared radiation?
3. How long does it take the Sun to release more energy than humans have used in the entire history of civilisation?
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