Satellite Navigation

07 May 2010
Presented by Meera Senthilingam.

This week, we explore the science behind satellite navigation to find out how our global positioning system, GPS, works to identify our location and how it may be possible to hack into these signals and dupe our receivers into thinking we're elsewhere! We also reveal a new finding into why HIV infected adults are more prone to infection with salmonella and in question of the week we investigate if the doppler effect can be heard through a radio!


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