On another note about the BSFs ... I'm sitting here at 11:30, in the dark. The BSFs are buzzing around. I've gotten to think about this, because mostly during dark days, they just SIT. And SIT. They do nothing but conserve energy.
Yet here we are, in the dark, and they buzz.
So thinking about it ... there is this orangey, not-much-light, mercury vapor lamp in the yard. It is rather old ... over 20 years I think ... and it turns on sometime in the evening.
Googling it, it seems mercury vapor lamps give too much UV, and so nowadays they are supposed to have filters. I don't think this one has those filters. Might be why I need eyeshades to sleep ... maybe my eyes are tuned to UV too. The light seems very dim, but it certainly gets the BSFs going.
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