Cosmos Classic

  • What happens if the permafrost disappears?

    If the Arctic permafrost melts, the results could be catastrophic.

    What happens if the Arctic permafrost melts? Carbon levels are rising, and things are starting to look a lot worse. ...

    Climate January 19, 2022
  • The chemistry of the cricket ball

    Is there a difference between different coloured balls?

    The smallest change in the velocity or direction of a cricket ball can have a dramatic effect on the outcome of a mat...

    Chemistry January 18, 2022
  • What’s happening when our joints crack?

    Will we get arthritis like our parents used to tell us?

    We’ve all had the experience of standing up and hearing a loud pop in our back or hip, or trying to tiptoe through th...

    Biology January 14, 2022
  • What is the Fermi Paradox?

    Why can’t we see any sign of life elsewhere in the universe?

    The Fermi Paradox – named after the Italian-American physicist Enrico Fermi – can be summed up in a simple question t...

    Space Exploration January 13, 2022
  • LIDAR: how self-driving cars 'see' where they're going

    Those spinning units atop autonomous vehicles use laser light to map their surroundings in 3-D.

    Fully autonomous cars are edging closer to reality, driven by advanced sensors that can avoid a crash before it happe...

    Technology January 11, 2022
  • What are school sores and how do you get rid of them?

    They’re unsightly, but school sores usually clear up within a few weeks, without any scarring.

    Impetigo, or “school sores”, is a contagious infection of the very top layer of skin. It’s most common in children ag...

    Biology January 7, 2022
  • How do antiperspirants and deodorants work?

    The science that keeps you smelling sweet and sweat-free for hours.

    “Deodorant” and “antiperspirant” are often used interchangeably. This is for good reason, as they're often offered in...

    Chemistry January 5, 2022
  • Explainer

    How does carbon capture and storage work?

    One approach to the control of carbon emissions.

    Carbon capture and storage (CCS) When a coal, oil or gas plant burns fuel to create electricity, a major by-product i...

    Climate December 15, 2021
  • What really causes pimples and acne?

    So what’s going on in your skin?

    What causes acne? It afflicts millions of people each year, according to the American Academy of Dermatology. But is...

    Biology December 13, 2021
  • What's behind the belly button?

    The umbilical cord is cut, and the belly button left behind. But what happens inside?

    Our belly button is a reminder for life that once we were attached to and dependent on our mother, floating like a li...

    Biology December 9, 2021
  • How does 3D printing work?

    Additive manufacturing has extended past manufacturing and into prototyping, fashion and even med...

    How does 3D printing work? 3D printing: it converts digital models into real-life objects and makes it possible to ...

    Materials December 7, 2021
  • What is osteoarthritis?

    Osteoarthritis can be largely asymptomatic until it’s too late.

    When I was 28 years old, I was diagnosed with advanced stage osteoarthritis in my knee. I had injured it playing socc...

    Biology December 3, 2021
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