Engineering has always been about solving real problems. What has changed is how those problems are solved. With today’s technology, engineers can now work faster, think bigger, and create smarter solutions than ever before. For example, if engineers wanted to test how a bridge design would handle heavy loads, they often built small physical models and performed repeated stress tests. This process took a long time, required a lot of materials, and mistakes were usually discovered late.Today, the same research can be done using computer stimulation and digital modeling . Engineers can design the bridge on a computer, simulate different load conditions, and identify weak points within hour and Changes can be made instantly without rebuilding physical models, saving time, cost, and effort.