Why is the sky blue?

Why is the sky blue?

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Reddit Chemistry: Why don't birds get shocked on power lines? (and other questions)

Why can birds sit on electrical wires without getting shocked? What's the chemistry behind cake mix versus baking from scratch? Why do some materials create more fire than others? Melissa and Jam tackle these questions and more, drawn from curious listeners and the 'Explain Like ...  Show more

How do fans cool us off?

#230 Winter has us longing for warmer weather. BUT when it's a hot day how do fans keep us cool? Do fans actually lower the air temperature? What role does evaporative cooling play? Find out how the movement of air molecules around your body is the key to feeling cooler. Plus, di ...  Show more

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