Fresh rainwater can become polluted as it passes through stormwater drains, picking up debris and micro organisms.
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Coloured lights can be combined (or subtracted) to create new colours.
During Dr Yuri Blashtov’s performance at Questacon, he’ll try and launch 10 rockets.
Coloured light beams and electronics work together to play music or funny sound effects.
Extracting freshwater from brackish or salt water using reverse osmosis is an energy-intensive technique.
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