Iron Beam [SEP] designer
Iron Beam
Iron Beam (, "") is an air defense system which is in development by Israeli defense contractor Rafael Advanced Defense Systems. Unveiled at the Singapore Air Show on February 11, 2014. The system is designed to destroy short-range rockets, artillery, and mortars with a range of up to , too small for the Iron Dome system to intercept effectively. In addition, the system could also intercept unmanned aerial vehicles. Iron Beam will use a "directed high energy laser beam" to destroy hostile targets
Dee Bridge disaster
The Dee Bridge disaster was a rail accident that occurred on 24 May 1847 in Chester, resulting in five fatalities. It revealed the weakness of cast iron beam bridges reinforced by wrought iron tie bars, and brought criticism of its designer, Robert Stephenson, the son of George Stephenson.
Background.
A new bridge across the River Dee was needed for the Chester and Holyhead Railway, a project planned in the 1840s for the expanding British railway system. It was built using cast iron girders produced by