Can a Mobile Phone Unlock a Car?

24 December 2010
Presented by Chris Smith, Redi Tlhabi.

What's a light-year, why is the earliest dawn not on the solstice, is the Sun hotter in South Africa, what causes neuropathy, can batteries short out in my pocket, is there a non-surgical solution to a squeaky voice, can my cell phone unlock my car and why does tapping a cup of cocoa make the pitch go up? Join Dr Chris for this week's festive selection of scientific conundra, on Talk Radio 702...

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