degarb
Flashlight Enthusiast
Gen, http://www.yorku.ca/eye/lambdas.htm is a good link.
The take away is that there is a saturation level of the rods. As far as a predawn early morning wakeup light positioning goes, I suspect if I had two lights only, I would position them at 45 degrees off center of vision on either side of straight on, rather than totally off to either side.
The take away from the doctor, Gen, is that everyone has theories, but few test those theories. Empirical observation beats theory, every time. It amazes me, though it shouldn't by now, how certain people are about theories they never tested. I have tested many crazy things, and often (perhaps, a third of the time) got results that are the opposite of what you would expect. You just need to be careful, by researching, calculating, consulting many experts, small scale, safety measures, midscale, before full scale, especially if life or property is on the line.... The problem with the Doctor's melatonin advice, is safety has been established, but he had all kinds of opinions, without ever bothering to test. I will say, there is a huge brand difference in effectiveness. So, if one brand doesn't work, try another. Though again, melatonin alone is not enough, it needs no more than half a benedryl 1.5 hours before sleep target, to work all the time. ... Though as you say, anything that works for anything physical condition, is addictive. Asprin, included.
The take away is that there is a saturation level of the rods. As far as a predawn early morning wakeup light positioning goes, I suspect if I had two lights only, I would position them at 45 degrees off center of vision on either side of straight on, rather than totally off to either side.
The take away from the doctor, Gen, is that everyone has theories, but few test those theories. Empirical observation beats theory, every time. It amazes me, though it shouldn't by now, how certain people are about theories they never tested. I have tested many crazy things, and often (perhaps, a third of the time) got results that are the opposite of what you would expect. You just need to be careful, by researching, calculating, consulting many experts, small scale, safety measures, midscale, before full scale, especially if life or property is on the line.... The problem with the Doctor's melatonin advice, is safety has been established, but he had all kinds of opinions, without ever bothering to test. I will say, there is a huge brand difference in effectiveness. So, if one brand doesn't work, try another. Though again, melatonin alone is not enough, it needs no more than half a benedryl 1.5 hours before sleep target, to work all the time. ... Though as you say, anything that works for anything physical condition, is addictive. Asprin, included.