Gustav Kirchhoff & Robert Bunsen used this prismed "scope" to see the bands of colored light each element produced
... where physicist Gustav Kirchhoff and chemist Robert Bunsen 
used... [DOC] [TLE] Week 7 Readings - UCI [PAR] When Newton's new theory on light and color appeared in print in 1672, it 
created quite a ... he had provided about his experimental design and the prisms 
he had used.