1846 ⟶ Discovery of the Planet Neptune

Johann Gottfried Galle and Heinrich Louis d'Arrest: discover...
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Year
1801
1846
1861
1897
1915

🔭 Giuseppe Piazzi Discovers Dwarf Planet Ceres

Italian astronomer Giuseppe Piazzi discovers the dwarf planet Ceres.⟶
Giuseppe Piazzi Discovers Dwarf Planet Ceres (1801)
AstronomyPlanetary ScienceSolar System
ItalyItaly

🪐 Discovery of the Planet Neptune

Johann Gottfried Galle and Heinrich Louis d'Arrest: discovery of Neptune.⟶
Discovery of the Planet Neptune (1846)
AstronomyPlanetsSolar System
GermanyGermanyFranceFrance

🔬 Pasteur Proposes Germ Theory of Disease

Louis Pasteur: Germ theory.⟶
Pasteur Proposes Germ Theory of Disease (1861)
BiologyMedicineGerm TheoryLouis PasteurInfectious DiseasesScientific RevolutionPublic HealthMicrobiology
FranceFrance

🥼 Cloth Surgical Masks Developed in Europe

Surgical masks made of cloth were developed in Europe by physicians Jan Mikulicz-Radecki at the University of Breslau and Paul Berger in Paris, as a result of increasing awareness of germ theory and the importance of antiseptic procedures in medicine.⟶
Cloth Surgical Masks Developed in Europe (1897)
MedicineHygieneGerm TheorySurgeryMedical Technology
GermanyGermanyFranceFrance

⚫ Karl Schwarzschild Calculates the Schwarzschild Radius

Karl Schwarzschild: discovery of the Schwarzschild radius leading to the identification of black holes⟶
Karl Schwarzschild Calculates the Schwarzschild Radius (1915)
PhysicsCosmologyRelativityBlack HolesTheoretical PhysicsAstronomyGerman Science
GermanyGermany