You can catch Karl all over the airways, radio and television as well as some special events. View the calendar below to see when and where you can catch him next. Please note all times are the local station broadcast times. To check the time in your area, please go here.

The week's events

Brain hotter than body

Tuesday 12th July 11:30 am

The highest standard for measuring body temperature is via a heart sensor—after that, it's from inside a body cavity; and you can do it from inside the mouth or the ear, but that's not as accurate, and even less so when measured on the skin. Measuring brain temperature is different again—and be astonished that the temperature of the human brain differs from the rest of the body.

What happens when you get winded?

Tuesday 5th July 11:30 am

Have you ever been winded? You suddenly lose the ability to do something you've done 15 times each minute of your life. It's one part anatomy, one part physiology, and one part don't panic.

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Karl's Schedule

The week's events

Dr Karl joins Matt Webber on ABC Gold Coast

Dr Karl joins Matt Webber on ABC Gold Coast

Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

Dr Karl joins Christine Layton for ABC Perth

Dr Karl joins Christine Layton for ABC Perth

Dr Karl joins Nicole Chvastek on ABC Regional Victoria

Dr Karl joins Nicole Chvastek on ABC Regional Victoria

Dr Karl joins Rafael Epstein on ABC Melbourne

Dr Karl joins Rafael Epstein on ABC Melbourne

Find Karl on Instagram