The right tools can make any job easier. In fact, without the right tools, some jobs might not be possible at all.
For a long time, lengthy sea expeditions, or voyages, were simply not worth the effort. As technology improved, crews became able to sail farther and farther from shore. Navigation, or the science of planning and following a route, became more reliable. Thanks to these advances, European explorers were able to set foot on continents they hadn’t even known existed.