The Forth Rail Bridge Double Cantilever
"A historical demonstration at Imperial College in 1887 showing the weight of the central span of a bridge being transmitted to the banks through diamond shaped supports. The central "weight" is Kaichi Watanabe, one of the first Japanese engineers who came to study in the UK. Sir John Fowler and Benjamin Baker of Imperial College provide the supports."
"To commemorate the centenary of the construction of the Forth Rail Bridge, undergraduate students at Imperial College re-enacted the demonstration in 1988."