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Karl's Schedule

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.

Recent Articles

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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Fancy a Road Trip around Tassie with me and a bunc

Fancy a Road Trip around Tassie with me and a bunch of scientists!?
Come along for walks, talks, dinners, drinks and take in all of Beaker Street Festival along the way! Learn more at beakerstreet.com.au/roadtrip/
@beakerstreetsci

If you can't be bothered going to a Street Demonst

If you can't be bothered going to a Street Demonstration, instead, you can at least go to a Street Dance Party.
See you in August in Tassie in National Science Week - for the Best Science Festival in the Known Universe (at least).
@beakerstreetsci
www.beakerstreet.com.au

This Thursday, March 10, 0900-1000 (Sydney time),

This Thursday, March 10, 0900-1000 (Sydney time), TikTok Live with Hank Green!

At the famous Cornelia street… ❤️T.S (ps I l

At the famous Cornelia street… ❤️T.S (ps I love the vibrant nature of NYC and how there’s something new around every corner)

Check out @wagovernment for ‘You’ve Got Questi

Check out @wagovernment for ‘You’ve Got Questions’, where I answer some of the common concerns about the COVID-19 vaccines.

#rollup4wa

Join me on a fantastical journey from icy polar se

Join me on a fantastical journey from icy polar seas to pulsating coral reefs at Blue Planet II with the Adelaide Symphony Orchestra ✨. Take part in this mesmerising concert experience on Saturday 4 December, 8pm, at the Adelaide Showgrounds.

My favourite children’s book growing up was ‘T

My favourite children’s book growing up was ‘Thunderbolt of the Spaceways’. ABC Perth are asking for donations of new children’s and young adult’s books for their Brekky Book Bank. The books will be given to disadvantaged children across WA. Children’s books can bring back so many happy memories and if you’d like to share that magic with children, donate your books to the appeal. For drop off locations in WA: abc.net.au/brekkybookbank #brekkybookbank

Hoorah!! AstraZeneca second shot.

Hoorah!! AstraZeneca second shot.

Instagram post 17891605928078774

Instagram post 17891605928078774

It's #GeekPrideDay! 🎉One of my favourite pieces

It's #GeekPrideDay! 🎉One of my favourite pieces of Science Kit is the Galileo Thermometer (not actually invented by Galileo). It's a lovely combination of Function and Form (+art that is useful, like a tea towel).
Water will change its density a little bit with temperature, but ethanol does it 3.7 times better – and the modern liquids in a Galileo Thermometer are better again. This liquid is inside a sealed container – to avoid the effects of the changing air pressure.
Inside the container are a bunch of hollow, weighted glass balls – each carefully calibrated to have a different density, and each with a brass tag indicating the temperature. The single ball that is floating freely indicates the temperature of the liquid.
So what is your favourite super-geek item/collection, and why? And is it useful or beautiful, or both, like the Galileo Thermometer?