Where does amniotic fluid come from?

07 September 2012
Presented by Chris Smith, Redi Tlhabi


A heavily pregnant woman. Notice the arch in her lower back. At this time in pregnancy she will be experiencing back strain from the heavy weight she is carrying.


How did NASA get their cameras to work in the cold on the moon? How does a cordless electric toothbrush charge itself? What is adult respiratory distress syndrome? Where does the amniotic fluid around a baby come from? Why are Olympic races run anticlockwise? Why is sunscreen advised even on cloudy days? What is more accurate, my speedometer, or the speed recorded by my GPS? And why do my sunglasses make LCD displays look strange? This week Dr Chris takes on more of your science questions...


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