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Como uma escada feita à mão no século XIX desafia as leis da física? Engenheiros revelam que a estrutura helicoidal funciona como uma mola gigante, onde a curvatura contínua da madeira distribui o peso de forma circular e cada degrau sustenta o próximo. A flexibilidade do abeto é o segredo, mas a maestria necessária para projetar isso sem ferramentas modernas continua sendo um enigma fascinante que nem mesmo especialistas conseguem explicar totalmente. #engenhariacivil #misterio #historia #arqu...
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