Johann Heinrich Lambert

E57361

Enlightenment thinker astronomer human mathematician philosopher physicist polymath

Johann Heinrich Lambert was an 18th-century German-Swiss polymath of the Enlightenment, renowned for his pioneering work in mathematics, physics, astronomy, and philosophy, including the first rigorous proof of the irrationality of π.

Statements (49)

Predicate	Object
instanceOf	Enlightenment thinker → astronomer → human → mathematician → philosopher → physicist → polymath →
citizenship	German → Swiss →
contributedTo	continued fractions → foundations of trigonometric functions → theory of irrational numbers →
dateOfBirth	1728-08-26 →
dateOfDeath	1777-09-25 →
era	Enlightenment →
familyName	Lambert →
fieldOfWork	astronomy → cartography → geometry → mathematics → optics → philosophy → physics → probability theory → trigonometry →
givenName	Heinrich → Johann →
influenced	Immanuel Kant → development of non-Euclidean geometry →
influencedBy	Leonhard Euler →
knownFor	Lambert W function (later named in his honor) → Lambert azimuthal equal-area projection → Lambert conformal conic projection → Lambert quadrilateral in hyperbolic geometry → Lambert series → Lambertian reflectance law in optics → contributions to photometry → work on hyperbolic geometry →
languageOfWorkOrName	German →
memberOf	Prussian Academy of Sciences →
notableFor	first rigorous proof of the irrationality of pi →
notableWork	Anlage zur Architectonic oder Theorie des Einfachen und Ersten in der philosophischen und mathematischen Erkenntnis → Beiträge zum Gebrauche der Mathematik und deren Anwendung → Photometria →
placeOfBirth	Alsace → Holy Roman Empire → Mulhouse →
placeOfDeath	Berlin → Kingdom of Prussia →

Referenced by (2)

Subject (surface form when different)	Predicate
German Enlightenment →	hasKeyFigure
Deutsche Aufklärung →	notableFigure