I found info on what you're talking about. People had tube-shaped scopes; instruments that weren't too complicated, but what they were looking at wasn't just random materials. There was a mechanism, that I assume heated up the materials and that's what they used the scope on. On top of that...
Nah, that's not it.
It was something like this, maybe.
It was like the light that shined off the material told you what the material largely consisted of. But it had to have a signifigant amount of light shining on the material in order to see any changes on the graph.
A while back, I had one of many experiences my senior year... That made me super interested in science, in general. In my class, we used some type of rainbow graph-binocular-like machine contraption-thingy that basically showed us what stuff contained. It was called a spectrograph/gram/scope/I...
I randomly seen this question on Twitter and it does raise questions. Is there some sort of official etiquette on what to regard as fact in situations concerning fiction, like this? Do we really just disregard the person's thoughts who made the story or is closely involved with its creation? If...