Field and Stream has posted its picks, complete with video, of the five dumbest guns ever seen in TV and movies.
Also in today's links: a clever octopus, a live pink dolphin, and mold versus art.

Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.


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I won't say that the medical link is without merit. However, I do not believe that is entirely accurate.
Efficacy studies, I would guess, focus on the results for the symptom being treated. Do they, I wonder, note side effects. In my own case, I have switched to a different blood pressure midicine. It is slightly more effective than the old one, but that's not the main issue. With the old one, I developed a chronic cough, which was severe enough to inerfere with sleep. My insurance and I split the cost increase, although they do complain.
I also quesstion the studies to some extent. "Study" implies that there is a straightforward procedure to come to an objective conclusion. This is not, in fact, easy to do. You have to make sure that the measurement technique is comprehensive and accurate. You have to have a large enough sample to be meaningful. And, your sample has to truly represent the variables in the population.
Years ago insurance companies had inaccurate weight vs risk charts. It turned out that their sample was not really representative of the population.
And while I doubt that any of the studies are intentionally biased, they seem to be done by folks with a vested interest in reducing cost.
This is not to suggest that physicians are entirely right.
I am just raising issues with the accuracy of the other side.