Dr Karl: Need to Know
The thorny devil lizard’s drinking habits
How the thorny devil takes “flat out like a lizard drinking” to the extreme.
Tag: Dr Karl Kruszelnicki
Dr Karl: Need to Know
The Australian pedestrian button
Dr Karl’s ode to the ergonomic and elegant design of the pedestrian button.
Dr Karl: Need to Know
The Fred Hollows Foundation’s Arclight
Dr Karl looks at how the Foundation’s portable and cheap ophthalmoscope is helping save lives and prevent avoidable blindness across the developing world.
Dr Karl: Need to Know
Australian breakthroughs: the Bionic Ear
Dr Karl takes a look at how the Bionic Ear – developed with the help of Australian expertise – helps nearly 300,000 people worldwide hear again.
Dr Karl: Need to Know
The invention that saved soldiers’ lives in WWI
Australian physicist William Lawrence Bragg located enemy artillery with a makeshift infrasound reader.
Dr Karl: Need to Know
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.
Dr Karl: Need to Know
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.
Dr Karl: Need to Know
Australian breakthroughs: stomach ulcers
Two Australian doctors were awarded a 2005 Nobel Prize for uncovering the bacterial cause of most stomach ulcers.
Dr Karl: Need to Know
Australian breakthroughs: dark energy
Dr Karl outlines what we do and don’t know about the mysteriously named dark energy, which makes up around 70 per cent of the entire universe.
Dr Karl: Need to Know
Australian breakthroughs: the cervical cancer vaccine
Dr Karl looks at how scientists have combated cervical cancer since the early 20th century.