The Hidden Power of Sewage. St. Paul’s Co-educational College. Lo Ka Shun, Parco Tsang Tin Ki, Angela Wong Ho Gan, Albert Poon Wing Yiu, Sarah. How much sewage we Hong Kong people produce each day?. X 1400. 2.6 million cubic metres!!. Working Principle.
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St. Paul’s Co-educational College
Lo Ka Shun, Parco
Tsang Tin Ki, Angela
Wong Ho Gan, Albert
Poon Wing Yiu, Sarah
A dynamo changes kinetic energy to electricity