Toilets can generate power
The HighDro Power harnesses the energy of wastewater as it falls through pipes, similar to the way a hydroelectric dam does.
If installed it's in a commercial building, the inventor estimates it could save $1,400 in electricity costs per year in a seven-story building. In a hotel, it might even let the owners sell electricity back to the grid.
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3-layer non-medical masks now recommended by Canada's top public health doctor
TORONTO - The Public Health Agency of Canada is now recommending Canadians choose three-layer non-medical masks with a filter layer to prevent the spread of COVID-19 as they prepare to spend more time indoors over the winter.
Chief Public Health Officer Dr. Theresa Tam made the recommendation during her bi-weekly pandemic briefing in Ottawa Tuesday.
"To improve the level of protection that can be provided by non-medical masks or face coverings, we are recommending that you consider a three-layer nonmedical mask," she said.
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According to recently updated guidelines, two layers of the mask should be made of…
