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Next up on the Radio

  • Wednesday 29th May 2024
    9:30 am - 10:00 am

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 29th May 2024
    3:00 pm - 3:30 pm

    Dr Karl joins Katherine Feeney on ABC Brisbane

  • Thursday 30th May 2024
    11:00 am - 12:00 pm

    Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

  • Thursday 30th May 2024
    2:00 pm - 2:30 pm

    Dr Karl joins Michael Tetlow for ABC Perth

  • Thursday 30th May 2024
    2:30 pm - 3:00 pm

    Dr Karl joins Alice Matthews on ABC Canberra


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Great Moments in Science

The flat earth myth myth

Medieval people thought the world was flat right? Wrong.

Great Moments in Science

Why we need a leap second added to our clocks

As New Year’s Eve ticked over to 2017, scientists added an extra second to atomic clocks to compensate for the Earth’s variable rotation. But there are pros and cons to doing this, as Dr Karl Kruszelnicki explains.


Uncategorized

Soft copper, blue tyres and compression pants

Can copper pipes be made hard again after they have been overheated then cooled? Why do new tyres sometimes leave a blue mark on the ground? Do sports compression shorts work?

Great Moments in Science

Mirror Universe: part two

A nine second difference between physics experiments could have big implications. A whole universe worth of them!