For many centuries, the demands of gravity appeared to give architecture one requirement that was largely unquestionable: that structures must rise vertically. However, with the advent of steel it was revealed that this limit had not been provided by gravity but by our own limited technologies. In this text, originally published by Domus Magazine in Italian and shared with ArchDaily by the author, Alberto Campo Baeza reflects on the architectural freedom offered by steel structures and the arbitrariness they bring to architectural space. Isaac Newton was resting under an apple-tree in his garden when an apple fell on his head. Being endowed with such a privileged head and thoughts faster than lightning, he rose forthwith from his afternoon nap and set about calculating the acceleration of gravity.
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