Our Changing World for Thursday 21 June 2007
On This Programme
Victoria University hosts the ninth annual Chemistry Quiz Night for regional secondary school students. Complete with costumes, spot prizes and an award for the "Least Dressed" competitors, it's a highlight of the school science year.
Justin Gregory explores the phenomenon known as the "methane mega-burp", when massive amounts of methane were released from beneath the sea, 55 million years ago. He speaks to James Crampton and Chris Hollis from GNS Science about the importance of this prehistoric belch.
Tyrone Hayes, endocrinologist and frog specialist from the University of California Berkeley, discusses the effects of pesticides on amphibians around the globe, and the implications of these chemicals for human health.
They say laughter is the best medicine, but is it the best workout? Louise Wallace attends a laughter yoga session with instructor Malcolm Robertson.