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Next up on the Radio

  • Wednesday 30th April 2025
    9:30 am - 10:00 am

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 30th April 2025
    7:00 pm - 7:30 pm

    Dr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland

  • Thursday 1st May 2025
    11:00 am - 12:00 pm

    Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

  • Thursday 1st May 2025
    2:00 pm - 2:30 pm

    Dr Karl joins Joel Rheinberger on ABC Hobart


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Great Moments in Science

Is a vegan diet healthy?

Can you be truly healthy on a diet that excludes both meat and dairy?

Great Moments in Science

Carrington Event

What was the mysterious Carrington Event of 1859? And why did it affect telegraph systems?


Great Moments in Science

5G hysteria is coming: part 2

If mobile phones don’t cause cancer, why did two US studies show they do?

Great Moments in Science

How does the heart work?

Your life depends on the regular beat of your heart. Dr Karl explains how this mighty four-stage pump works.