I use the BTi on a regular basis for treating the soil so i was kinda surprised when they popped up. Little did i know i was collecting a pool of water that i could not see in one of the drain trays.BTi, for the win.
Hardly, hardly, off topic.
In the second World war colour blind soldiers were employed as ariel spotters and map interpreters.
With out hue distractions, these people were more adept @ spotting irregularities, as they had adapted to identifying shapes.
My bow-hunting mentor was colourblind. He would critique my camo choices, and tell me what the deer would see.
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