The Life Scientific Folgen

A world in which planes are silent may sound like a pipe dream; but University of Cambridge engineer, Dame Ann Dowling, and her team proved it is possible to build an aircraft that barely makes any noise. A brilliant mathematician and a keen pilot, Ann now heads of one of the largest engineering departments in Europe. Her design for a silent aircraft could improve the quality of life for millions of people living near airports worldwide: so does she mind that it never got off the ground? Jim talks to Ann Dowling about mathematics, engines and how she always wanted to do something useful. Producer: Anna Buckley.

For fifteen years, Martin Siegert has dreamt about Lake Ellsworth, a hidden lake buried beneath the Antarctic ice that's been cut off from the rest of the world for millions of years. Having studied data from airborne radar surveys, Martin knew the lake must exist and was determined to find out more. Finally, this winter, a team of British scientists led by Martin will drill through three kilometres of ice to unlock the secrets of this hidden lake. Can life exist in such a cold, dark and isolated place? And if so what form will it take? Martin describes working in Antarctica as being like an episode of Mash and explains why, unlike so many Antarctic scientists, he prefers analysing data to having icy adventures.

Jim Al-Khalili talks to botanist, Pat Wolseley about her obsession with lichen and the environmental secrets it holds. This humble and ancient organism contains a wealth of information about the quality of air we breathe. Certain species thrive on road traffic pollution: others prefer acid rain. And, for the last five years, thousands of people throughout the UK have been gathering scientific data on different lichen populations in their local area and using it to monitor air pollution.