Wind tunnels. The workshop attached to DSTO's wind tunnel used to be a model maker's (and foreign order) paradise. I'd imagine that wind tunnels are gradually

Wind tunnels. The workshop attached to DSTO's wind tunnel used to be a model maker's (and foreign order) paradise. I'd imagine that wind tunnels are gradually being supplanted by simulation, but that there is still a demand for the physical test and the associated modeling. I think the biggest thing we've lost in the transition from physical modeling to simulation is the widespread ability to manipulate materials. The process of model making has an inherent value, whose payoff is the ability to imagine what is possible in the physical world and to make it happen.