Dr Karl

About Karl

When NASA classified Karl as non-astronaut material in 1981 he walked straight into ABC Radio station Double J and offered to talk about the Space shuttle launch. They said ‘Okay’ and his radio career took off from there. ‘Great Moments In Science’ ran on Double J while Karl moonlighted as a medical student. read full bio

Where is Karl?

You can catch Karl all over the airwaves, check out his upcoming time slots.

  • Dr Karl joins Robbie Brechin ABC Adelaide

    Wednesday 2nd September 2015
    11:00 am - 11:30 am

  • BBC Radio 5 live’s Up All Night

    Thursday 3rd September 2015
    3:00 am - 4:00 am

  • Dr Karl joins Steve Austin on ABC 612 Brisbane

    Thursday 3rd September 2015
    10:30 am - 11:00 am

  • Triple J on Mornings with Zan Rowe

    Thursday 3rd September 2015
    11:00 am - 12:00 pm

View full schedule

From the Blog

The smartphone is a universal machine (iStockphoto: krystiannawrocki)

Evolution of the universal machine

GREAT MOMENTS IN SCIENCE: What do Apple, the smartphone and Alan Turing have in common? Dr Karl cracks the history of the universal machine.

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

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.

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Honk if you’re being hacked

GREAT MOMENTS IN SCIENCE: Dr Karl goes back to the beginning of the car hacking era in part one of a three-part series.

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