I wonder whether this is serious. However, I will give you the bvenefit of the doubt

What a laser here does, what any laser can do, is determine wheter there is something between sender en collector. This could be a fish, or it could be, for instance, a floating leaf. The laser will not be able ...

Hi to all, Have you thought about this as well as for me? 8-| in fish farming the fish are fed at a percentage of their weight. i measured the weight of the fish that i put into the tank, and i can remove the fish once in a while to reweigh them but that is very stressful to them. i would like to ...