How does a water softener work?

Water hardness, metals, MRI scans and gravity go under scrutiny this week...
11 September 2021
Presented by Chris Smith with Lester Kiewit, 567 CapeTalk. 
Production by Chris Smith.


Washing hands under running water at a sink


What causes r-rolling difficulties otherwise known as rhotacism? Also, why do we have to stay still in an MRI scanner, why is calcium a metal, what makes water hard and how does a water softener work, what is the impact of a caesarian birth on health and why, what's the reason dementia affects short but not long term memory, and how does gravity work? Join Lester and Dr Chris for the answers to this week's crop of questions...


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