• Isaac Newton used prisms and lenses
    • Saw rainbows coming from sunlight
  • Fraunhofer in 1814 magnified rainbows to look closer
  • Bunsen burners in 1857
    • Different chemicals into flame --> different colours
  • Gustav Kirchhoff --> prism
    • Tied together the gaps and the different colours
    • Found colours were made up of emission lines
    • Number of lines and colours were unique to each element

Space Astronomy