43. Triangulating in Alaska
One of the main things these explorers did when going to new places was gather data, and the best way to measure a mountain is Triangulating. Here we see William McCaslan Scaife, an Army captain with his team of explorers, triangulating a mountain in Alaska in 1923. Nowadays, triangulating is more manageable than climbing a mountain and taking measurements; we now get help from satellites, making measurements even more accurate and less dangerous. Having to do this manually put everyone at risk of slipping and falling to their deaths.
