Some connections among the heroes.
Heilbron
J L
JL
D002621:Chemistry / Q000193:education / Q000266:history; D004560:Electricity / Q000266:history; D055590:Electromagnetic Phenomena / Q000266:history; D005740:Gases / Q000266:history; D049671:History, 18th Century; D008962:Models, Theoretical; D010811:Natural Science Disciplines / Q000193:education / Q000266:history; D010825:Physics / Q000193:education / Q000266:history
D005740:Gases