Gestalt
Today, a curious word: Gestalt. The University of Houston presents this series about the machines that make our civilization run, and the people whose ingenuity created them.
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The German word, gestalt, means simply “shape” or “form”. Yet it’s grown into a monster of a word. The German scientist and poet, Goethe, expanded it to mean the morphology of plants. Since then it’s grown to embody the very important idea of wholeness – the full functioning of many elements.
I suppose it’s most familiar today as a school of psychology: The idea that we must consider the whole of a person’s psyche, not just this fragment or that. But let’s not follow that thread today. Instead, let’s see how the word might apply to our technical world.
Medicine has adopted the term, since diagnoses have to take in far more than what’s obvious. You know the old saying, “If you’re a hammer, every problem is just a nail.” Specialists are in danger of limiting diagnoses to what they know best – without looking at the whole patient.
Well, I’m an engineer, and it applies to our work, as well. Long ago, I worked for a West Coast company that designed equipment for tractors. We spent months designing an attachment for laying pipe. It looked competitive until – suddenly – someone checked the cost of scrap iron for its huge counterweight.
Turns out, shipping iron all the way out West and back, priced us out of business. We hadn’t seen the whole problem we were working on. We engineers are in constant danger of missing subtle elements of the whole problem we need to solve.
Far larger engineering designs all too often fail when we do that. Bridge designs have been haunted by such issues. Think of the Tacoma Narrows Bridge collapsing in a storm when its designers failed to account for its aerodynamics in the wind.
Movie of the Tacoma Narrows Bridge Failing
Or think about airplanes. They have to function in so many dimensions: economy, range, reliability ... the list is endless. Add wartime use, and a huge array of factors go into that pot.
I give you, for example, our most advanced (if yet untested) fighter plane, just as World War II began: The P-39 Airacobra. They meant it to be a high altitude fighter. But they’d missed things – like an creating an adequate supercharger. And: a misplaced center of gravity made it dangerously hard to fly. We finally gave our Airacobras to the Russians. They used them to make low-level ground attacks against an army protected by a depleted Luftwaffe. But, this airplane’s designers had, quite simply, failed to see it whole.
Bell Airacobra P-39Q: Late version in use by the Russians in WW-II
I could go on. Engineering, like medicine – like any large undertaking – lays bare the difficulty of seeing the gestalt while we work on component pieces. How do we go about seeing the trees and understanding the forest at the same time? That remains our inescapable challenge.
I’m John Lienhard, at the University of Houston, where we’re interested in the way inventive minds work.
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Gestalt psychology - Wikipedia
The Tacoma Narrows Bridge Failure
See the Engines Episodes, P-39, Bell Airacobra
The Wikipedia article about the Engineering Design Process pays a great deal of attention to considering all the factors involved. But there is always that factor that did not occur to us.
This Episode first aired on June 1, 2026.