• discoveries caffeine

    Pierre Jean Robiquet discoveries caffeine
  • discovered cocoa powder.

    discovered cocoa powder.

    Coenraad Johannes van Houten discovered cocoa powder.
  • Bunsen burner.

    Bunsen burner.

    Robert Bunsen invented the aptly named Bunsen burner.
  • periodic table of elements.

    periodic table of elements.

    Dmitri Mendeleev is credited with publishing the periodic table of elements.
  • invented plastic.

    Leo Hendrik Baekeland invented plastic.
  • solar panel.

    solar panel.

    Giacomo Luigi Ciamician is the father of solar panel.