September 22nd, 2016
Episode 114 of 158 episodes
It may sound like the plot of a bad thriller, but it’s a fascinating tale of a 2000 year old shipwreck off the Greek island of Antikythera. Archaeologists have already discovered what they think is the earliest proto- computer – the Antikythera Mechanism – a clockwork device that modelled the motion of the Sun. Other than this, very little is known about the ship and its contents. Now divers have found a leg bone of one of the ship’s passengers. They hope DNA analysis will shed more light on the mystery. Out of Africa and Into Australia The result of in depth analysis of the genomes of the world’s most diverse populations reveals that all modern human ancestry outside of Africa including Australasians is consistent with descending from a single founding population. Kuwait’s Controversial DNA Law Last year, after a terrorist attack, Kuwait passed a law requiring all its citizens, residents and visitors to provide DNA samples, for a National Database. The law is about to be enforced in November, and scientists and human rights advocates argue that there needs to be more clarification and legislation checks and measures to avoid any abuse of an individual’s privacy. Humming Fish At night, underwater, the male Midshipman fish woos his mate by humming. We now know that this unusual behaviour is down to an inner biological clock, regulated by the hormone melatonin. It doesn’t make the humming any more tuneful though! Picture credit Brett Seymour, EUA/WHOI/ARGO Presenter: Marnie Chesterton Producer: Fiona Roberts
Welcome to the Brain Training Podcast, the daily audio workout for your head. In this podcast we have two games for you, each with three rounds which get progressively harder. To enjoy the full experience, relax, and avoid distractions whilst you listen.