en christiaan huygens
― field ⟶
Weight: 0.5
en physics Source: DBPedia 2015
en christiaan huygens
― field ⟶
Weight: 0.5
en horology Source: DBPedia 2015
en christiaan huygens
― field ⟶
Weight: 0.5
en astronomy Source: DBPedia 2015
en christiaan huygens
― field ⟶
Weight: 0.5
en mathematics Source: DBPedia 2015