Which product innovation revolutionized modern architecture by enabling the creation of curtain walls and extensive glazed facades in skyscrapers?

Test your knowledge of revolutionary product innovations that transformed architectural design and construction practices! This trivia challenges you to identify which groundbreaking material innovation allowed architects to reimagine building facades and interior spaces with unprecedented flexibility. Each option represents a significant advancement, but only one sparked a fundamental shift in how architects approach transparency and light in modern structures.

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Float glass process (developed by Pilkington in the 1950s)
Reinforced concrete (patented by François Hennebique in 1892)
Structural silicone sealants (introduced by Dow Corning in the 1970s)
Extruded aluminum framing systems (standardized in the 1940s)