Gadgets
How standard screws cracked a 173-year-old architectural mystery
A long-standing mystery surrounding one of Victorian England’s iconic architectural wonders has finally been solved by historians and researchers. The answer lies in simple, standardized nuts and bolts, which allowed engineers to construct the Crystal Palace at unprecedented speeds in 1851.
The Great Exhibition of 1851 showcased Britain’s industrial capabilities, with the Crystal Palace designed by architect Joseph Paxton as the highlight of the event. Measuring over 1,827 feet long, the Crystal Palace was the world’s largest building at the time, featuring a massive glass roof supported by 3,300 cast iron columns. The mystery of how the construction was completed in just 190 days has puzzled historians for nearly 175 years.
A study published in The International Journal for the History of Engineering & Technology reveals that the Crystal Palace relied on a revolutionary screw thread designed by Joseph Whitmore, solving the construction mystery. Before Whitworth’s standardized concept, each screw and bolt was unique, leading to delays in construction projects. The Crystal Palace required 30,000 nuts and bolts, yet the standardized threading system ensured smooth progress.
After the Crystal Palace was deconstructed and rebuilt, it burned down in 1936, making the original bolts rare artifacts. However, curator Ken Kiss excavated one of the last known bolts for analysis, confirming that they matched Whitworth’s measurements. Gardner’s study involved manufacturing new bolts to BSW threading, demonstrating a perfect fit with the original nut.
By adopting Whitworth’s standardized option, builders were able to complete the monumental endeavor within a short timeframe, attracting millions of visitors to the Great Exhibition. Despite the significance of this innovation, it was overlooked for decades due to the rapid pace of technological advancements during the Victorian era.
[Related: Milwaukee wants to build the world’s tallest timber skyscraper (again).]
The legacy of the Crystal Palace and the BSW specifications continues to influence modern architecture, showcasing the lasting impact of this historic engineering marvel.
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