Dr Karl
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Triple J Science Questions

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Next up on the Radio

  • Wednesday 21st February 2018
    10:30 am - 11:00 am

    Dr Karl joins Nicole Dyer on ABC Gold Coast

  • Wednesday 21st February 2018
    11:30 am - 12:00 pm

    Dr Karl joins Phil Staley on ABC Cairns

  • Thursday 22nd February 2018
    11:00 am - 12:00 pm

    Dr Karl joins Linda Marigliano on ABC Triple J Science Mornings

  • Thursday 22nd February 2018
    2:00 pm - 3:00 pm

    Dr Karl joins Rhod Sharp on BBC Radio 5


Latest Books

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Recent Articles & Stories

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Australian Geographic

The Australian pedestrian button

Dr Karl’s ode to the ergonomic and elegant design of the pedestrian button. IN 1884, PLAYWRIGHT Oscar Wilde wrote, in The Value of Art in Modern Life, “I have found that all ugly things are made by those who strive to make something beautiful, and that all beautiful things are made by those who strive […]

Light touch- Veins near the skin's surface re-emit tiny amounts of red light, but lots of blue light (Source- MasazS:iStockphoto) .jpg Great Moments in Science

Why do veins look blue?

GREAT MOMENTS IN SCIENCE: Blood is red, but thanks to physics, chemistry and industrial relations, veins can look blue, explains Dr Karl.


Great Moments in Science

Loud sounds can kill computer hard drives

SOUND POWER: Computer hard drives are such precise pieces of engineering that even shouting at them can affect their performance. The blast from a fire suppression system? That can kill them outright, writes Dr Karl Kruszelnicki.

Australian Geographic

Australian breakthroughs: dark energy

Dr Karl outlines what we do and don’t know about the mysteriously named dark energy, which makes up around 70 per cent of the entire universe. THE LATEST AUSTRALIAN discovery that impresses the heck out of me is really, really weird. We can’t see it or touch it – and yet, it makes up about […]