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 Nicole Dyer on ABC Gold Coast

    Wednesday 16th August 2017
    9:30 am - 10:00 am

  • Dr Karl joins Paula Tapiolis on ABC Townsville

    Wednesday 16th August 2017
    10:30 am - 11:00 am

  • Dr Karl joins Ali Clarke on ABC Adelaide

    Wednesday 16th August 2017
    11:00 am - 11:30 am

View full schedule

From the Blog

How many places of pi do we need?

GREAT MOMENTS IN SCIENCE: Pi is a very long and a very important number, but how many decimal places of it do we really need to know? Dr Karl investigates.

Under the skin: Hand-rolled cigarettes are both less natural and more harmful than factory-made cigarettes (Source: winterling/iStockphoto)

Cigarettes: roll your own vs factory-made

GREAT MOMENTS IN SCIENCE: There’s no such thing as a ‘less harmful’ cigarette, even if you roll your own. In fact, rollies are deceptively deadly, says Dr Karl.

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