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From a urine testing kit for elite athletes, to a washer-dryer that requires no electricity ; and a specialised face shield to protect doctors from radiation.
We meet three young inventors, finalists in the annual James Dyson Award.
It's an international design contest that challenges young engineers to create a solution to a problem.
It's open to university level students or recent graduates. Nick Holland is a 22 year old Industrial designer from Wellington, and the National Winner of the 2023 James Dyson Award.
His invention is a more user friendly urine drug testing kit. Finalists, Joshua Unwin, invented a sustainable solution for washing and drying clothes, that requires no electricity.
And Oliver Mortimer, has designed a head mask protecting physicians from exposure to ionizing radiation.
All three will now all go on to be considered for spot in the coveted global top 20.