When we consider just how much of our world we manipulate with our fingers it may feel surprising that our fingers themselves don't have muscles, our powerhouses of force and motion. But the structure of the whole arm allows for muscles in the palm and forearm to lever the fingers into action. In many cases in life, we must engineer creative ways of maneuvering through and accomplishing tasks. Along with all the basic physical tools human life has relied on, the wheel, ramps, levers, hammers, screws, and pulleys, we have developed throughout history a wide range of emotional, social, and technological tools as well. What is one or more tools or adaptations that you cannot imagine living without?
RSS Feed
