:''To meet these goals … NIST and its contractors … analyzed 236 pieces of steel that were obtained from the wreckage; performed laboratory tests, measured material properties, '''and performed computer simulations of the sequence of events that happened from the instant of aircraft impact to the initiation of collapse for each tower'''.'' (Quelle: Dito, S. xxxvi) | :''To meet these goals … NIST and its contractors … analyzed 236 pieces of steel that were obtained from the wreckage; performed laboratory tests, measured material properties, '''and performed computer simulations of the sequence of events that happened from the instant of aircraft impact to the initiation of collapse for each tower'''.'' (Quelle: Dito, S. xxxvi) |