Minoru Yamasaki's Model of the World Trade Center

Origin
Minoru Yamasaki (December 1, 1912 – February 7, 1986) was an American architect, best known for designing the original World Trade Center in New York City and several other large-scale projects. Yamasaki was one of the most prominent architects of the 20th century. He and fellow architect Edward Durell Stone are generally considered to be the two master practitioners of "New Formalism".

Effect
When the model is displayed in a building, the building will remain sturdy for 35 years. After the 35 years are up, the building will collapse in a violent manner. The model is sprayed by neutralized once every week through an automated system.