Sarah Wells

All Stories by Sarah Wells

  1. Tech

    How green is your online life?

    From the manufacturing of our favorite devices to using them for social interactions, our digital lives can have a big climate impact.

  2. Physics

    ‘Feathering’ helps explain Gentoos’ record-breaking swim speed

    Videos and computer analyses reveal the secrets of the penguins’ superspeed. The results could inspire future underwater vehicles.

  3. Physics

    Explainer: What is chaos theory?

    Chaos can help scientists explore subjects from climate change to human brains. Learn about the theory behind this field of science.