Need To Know with Dr Karl
The invention that saved soldiers’ lives in WWI
Australian physicist William Lawrence Bragg located enemy artillery with a makeshift infrasound reader.
Category: Need To Know with Dr Karl
Need To Know with Dr Karl
The fate of our first submarine
Dr Karl tells the story of Australia’s first submarine in World War One, the AE2.
Need To Know with Dr Karl
Which way does water go down a drain?
Dr Karl investigates if water really drains anti-clockwise in the Northern Hemisphere and clockwise Down Under.
Need To Know with Dr Karl
Arthritic cane toads?
Did you know cane toads in Australia get arthritis and have weaker immune systems? Dr. Karl teaches us more about the toxic toads spreading across the nation.
Need To Know with Dr Karl
Australian breakthroughs: the invention of wi-fi
Dr Karl looks at the story behind how Australian black hole researchers invented wi-fi.