The resistant virtues of the structure that we make depend on their form; it is through their form that they are stable and not because of an awkward accumulation of materials. There is nothing more noble and elegant from an intellectual viewpoint than this; resistance through form.
Dieste's unique and innovative method of design, a melding of architecture and engineering, elevated these often humble buildings to masterworks of art.
There are deep moral/practical reasons for our search which give form to our work: with the form we create we can adjust to the laws of matter with all reverence, forming a dialogue with reality and its mysteries in essential communion... For architecture to be truly constructed, the materials must be used with profound respect for their essence and possibilities; only thus can 'cosmic economy' be achieved... in agreement with the profound order of the world; only then can have that authority that so astounds us in the great works of the past.
These days I am more interested in the reverse case [of Da Vinci's helicopter]: ideas that could have worked many centuries before they actually appeared. The economist Alex Tabarrok calls these “ideas behind their time”
Curious minds want to know why these ideas appeared so late — and whether there might be anything that would prevent delays in future. One explanation is that the ideas aren’t as simple as they appear.
The bicycle is not as straightforward an invention as it seems. To move from ox-hauled cart to human-powered bicycle requires smooth-rolling wheel bearings, which in turn need precisely engineered bearing balls. Modern steel ball bearings were not patented until the late 1700s, and demand from the 19th-century bicycle industry helped to improve their design.