What is a decibel? - 5 Sep 13
James O'Brien's Mystery Hour - Een podcast door Global - Donderdagen

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Could Chickens survive a fall from a tall building? What is a decibel? Why does salt melt ice? And other mysteries...
James O'Brien's Mystery Hour - Een podcast door Global - Donderdagen
Could Chickens survive a fall from a tall building? What is a decibel? Why does salt melt ice? And other mysteries...