Spectroscope

The Spectroscope first appears in The Lost Metal as a sophisticated electricity-powered analytical instrument that records light frequency graphs with a pen arm on paper, functioning like a seismograph for spectral analysis. This device represents a significant technological advancement in Scadrial's industrial era, bridging the gap between Allomantic metals and scientific measurement. Its introduction marks the series' progression from purely magical detection methods to hybrid technological approaches for analyzing Investiture and metallic properties.