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.
Tag: Dr Karl Kruszelnicki
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.