Several of you have expressed interest in the webcamera that I have mounted in the lab. As I have said, there was a time when I was concerned because I was alone in the lab with the students and would have appreciated a second set of eyes and an impartial account of what happened and when in the lab. So here we are. These are the images from the Intro Chem Lab 23 November:
And the Organic Chem Lab 25 November:
Friday, November 26, 2010
Sunday, November 07, 2010
A River Runs Through It
So we are in the middle of the biggest storm of the season and I decided to make a quick visit to the culvert (click on image for video).
The video isn't perfect (I see I forgot to reset the date in the camera when I changed the batteries)but it shows the culvert releasing water at 3 meters per second and pooling over the lower rock field which clearly was created without thinking about the water table. The lower rock field will not act as a filter, the landscape fabric hoarding has been torn out and is now not holding anything in. If you look closely you can also see the demarcation line of the muddy outflow as it mixes with the stream. I have to admit though that the dilution factor has to be a significant factor with the stream volume so high.
I think this confirms pretty much everything I suspected and feared. Now we just need to wait until the city starts salting the streets to see what impact that has on the stream. Something tells me the stream doesn't freeze over this winter.
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| From 2010-11-07(stream) |
The video isn't perfect (I see I forgot to reset the date in the camera when I changed the batteries)but it shows the culvert releasing water at 3 meters per second and pooling over the lower rock field which clearly was created without thinking about the water table. The lower rock field will not act as a filter, the landscape fabric hoarding has been torn out and is now not holding anything in. If you look closely you can also see the demarcation line of the muddy outflow as it mixes with the stream. I have to admit though that the dilution factor has to be a significant factor with the stream volume so high.
I think this confirms pretty much everything I suspected and feared. Now we just need to wait until the city starts salting the streets to see what impact that has on the stream. Something tells me the stream doesn't freeze over this winter.
 |
| From 2010-11-07(stream) |
 |
| From 2010-11-07(stream) |
 |
| From 2010-11-07(stream) |
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