Go to the original post for the full account.
Edit: I see that some people have found my site by searching for terms about blue/green streaks over Halifax or or things in the sky. If you saw anything similar to my own accounts, or even just the laser display that I observed later, please comment as to the accuracy and completeness of my descriptions.
Update: Today alone people found my site through these search terms related to my observations. I would say a number of people are seeing similar things.
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I took a little walk this evening and saw that the Dalhousie laser was on again. I took a detour to look for its exact location. The laser is situation on top of the Kenneth C. Rowe Management building. Two other people happened to be looking for the source of the Laser as well, so we all piled in an elevator to the top floor to look for the source. After wandering into a lab declaring a class IV laser product warning (instant damage to exposed tissue) we found the people running the laser. They told us that it was an air quality monitoring experiment, measuring particulate mattering an vapor. I mentioned the scintillations that I had seem as the laser passed through thin clouds. The young woman answering my questions said she had seen the same thing, but didn’t know what caused them. I would have asked more questions but she was more concerned with carefully removing me from the lab filled with hazardous and expensive equipment before her supervisor returned.