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I live in a hard water area and use a stainless steel mesh ball in my kettle to stop it 鈥渇urring up鈥�. The steel mesh traps the scale that would otherwise form inside my kettle. How does it work?

鈥淢ust I absorb sunshine 鈥榙irectly鈥� to make vitamin D, or can it shine on me through glass windows?鈥�

V. M. Koritsas Otley, West Yorkshire, UK

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