Showing posts with the label science

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Visiting the uOttawa Aquariums for World Water Day

Did you know that uOttawa recycles water? As in use it, get it dirty, and use it again? I'll bet you didn’t. Now, of course, you can’t just use it immediately after dirtying it, but with the right filtration system, the water can be used over and over. That’s what they are doing in the uOttawa Aquatic Care facilities on campus. So in honour of World Water Day, with this year's theme being waste water, we spoke to Bill Fletcher from the Aquatic Care facility on how they are reducing water waste right here on campus. The Aquatic Care facility focuses on the research related to fish and amphibians, so you can imagine they use a lot of water. (I asked why the frogs were all like this. I learned that this is how they relax, a little creepy in my opinion but you know, I am not a frog). The facilities currently use 30 Million litres of water a year! Wow. But 85% of that water is getting reused right in the facility. How you might ask? One word: Bio-filters. ...

Hey remember acid rain? Yeah... not cool

As I drive along a road to my grand-father’s house on the week-end, I can’t help but notice the monster smokestacks that spoil Sudbury’s landscape. They can be spotted from miles away; towering over the (unusually) short vegetation and blackened granite. You can actually see a line where the exposed rocks have been blackened, and the recently broken or weathered rocks are pink and light grey (their natural color). Then it happened; a terribly geeky science moment! I remembered reading about acid rain problems in Sudbury being the cause for the lack of lush forest and bountiful wildlife; all because of the mega-smokestacks: Acid rain is produced when pollutants such as sulfur dioxide (SO2) are chemically transformed to sulphuric acid in the atmosphere; they are then transported and eventually deposited in the form of rain or snow. Over 90% of acid rain in North America is the result of burning fossil fuels for energy (such as coal), and more importantly smelting or refining sulphur...