What causes the rainbow of colours around an aircraft's shadow, why are moths and mosquitoes attracted to lights, plasma vs LCD TV - what's the difference, how does a mosquito know when it's full of blood, are you ever too old to learn, and how do scientists calculate the calories in foods?  Join Dr Chris for this week's bumper crop of questions from TalkRadio 702...

• Why Don't Mosquitoes Burst? - Naked Scientists Science Podcasts and Science Radio Shows
• Can a Mobile Phone Compromise your Sperm Count? - Podcasts
• SETI, Aliens and the Origins of Life - Podcasts
• Dear Naked Scientists, My 7 year old daughter asked me this evening, why we don't see rainbows un... - Questions
• Analysing Asteroids - Podcasts
• The Science of Farming - Podcasts