
Iowa Motorcycle Scout
Carlisle Motorcycle Listings
| Laverty Performance Center P.O. BOX Q Carlisle, IA 50047-0716 (515)989-4001 | Tri-Bike Inc 115 N 1st St Carlisle, IA 50047-7810 (515)989-3244 |
The sciences do not try to explain, they hardly even try to interpret, they mainly make models. By a model is meant a mathematical construct which, with the addition of certain verbal interpretations, describes observed phenomena. The justification of such a mathematical construct is solely and precisely that it is expected to work - Johann von Neumann


