Bugün öğrendim ki: İngiliz ordusu köprüleri geçerken adım atıyor. Bunun nedeni, 1831'de birlikte yürüyen tüm askerlerden bir asma köprünün çökmesidir.
Bridge in Manchester, England, completed in 1826 **Broughton Suspension Bridge** was an [iron chain suspension bridge](/wiki/Suspension_bridge "Suspension bridge") built in 1826 to span the [River Irwell](/wiki/River_Irwell " River Irwell") between [Broughton](/wiki/Broughton,_Greater_Manchester "Broughton, Greater Manchester") and [Pendleton](/wiki/Pendleton,_Greater_Manchester "Pendleton, Greater Manchester"), now in [Salford, Greater Manchester]( /wiki/Salford,_Greater_Manchester "Salford, Greater Manchester"), England. One of Europe's first suspension bridges, it has been attributed to [Samuel Brown](/wiki/Samuel_Brown_\(Royal_Navy_officer\) "Samuel Brown \(Royal Navy officer\)"), though some suggest it was built by Thomas Cheek Hewes, a Manchester [millwright](/wiki/Millwright "Millwright") and [textile machinery manufacturer](/wiki/Textile_manufacture_during_the_Industrial_Revolution "Textile manufacture during the Industrial Revolution").[1][2] On 12 April 1831, the bridge collapsed, reportedly due to [mechanical resonance](/wiki/Mechanical_resonance "Mechanical resonance") induced by troops marching in step.[3] As a result of the incident, the [British Army](/wiki/British_Armed_Forces "British Armed Forces") issued an order that troops should "break step" when crossing a bridge. Though rebuilt and strengthened, the bridge was subsequently propped with temporary [piles](/wiki/Timber_piling "Timber piling") whenever crowds were expected. In 1924 it was replaced by a [Pratt truss](/wiki/Pratt_truss "Pratt truss") footbridge, still in use.