Why does spaghetti break into 3 pieces?

05 September 2014
Presented by Chris Smith, Redi Tlhabi.

Can we rear people in a germ-free environment? Can you be born with only one kidney? Why does spaghetti always break into 3 pieces? What exactly is temperature? When you add more water to the bath and then pull the plug - what water goes down the drain first, the new or the old? Why do birds live longer than their size would suggest?

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