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poster

(Encyclopedia)poster, placard designed to be posted in some public place for purposes of commercial announcement or propaganda. Advertising makes wide use of posters, as do charitable and political organizations. I...

Duhamel du Monceau, Henri Louis

(Encyclopedia)Duhamel du Monceau, Henri Louis äNrēˈ lwē düämĕlˈ dü môNsōˈ [key], 1700–1782, French agriculturist and tree expert. He did experimental work on plant physiology and ecology and wrote The...

Merle d'Aubigné, Jean Henri

(Encyclopedia)Merle d'Aubigné, Jean Henri zhäN äNrēˈ mĕrl dōbēnyāˈ [key], 1794–1872, Swiss ecclesiastical historian and Protestant preacher. After studying theology at Geneva and in Berlin, he was pasto...

Diels, Otto Paul Hermann

(Encyclopedia)Diels, Otto Paul Hermann, 1876–1954, German chemist, Ph.D. Univ. of Berlin, 1899. From 1899 to 1915, Diehls was on the faculty at the Univ. of Berlin. In 1916, he joined the Univ. of Kiel, where he ...

Deschanel, Paul Eugéne Louis

(Encyclopedia)Deschanel, Paul Eugéne Louis dāshänĕlˈ [key], 1855–1922, president of the French republic (1920); son of Émile Deschanel. A member of the chamber of deputies from 1885 and several times its p...

Dirac, Paul Adrien Maurice

(Encyclopedia)Dirac, Paul Adrien Maurice dĭrăkˈ [key], 1902–84, English physicist. He was educated at the Univ. of Bristol and St. John's College, Cambridge, and became professor of mathematics at Cambridge in...

Drude, Paul Karl Ludwig

(Encyclopedia)Drude, Paul Karl Ludwig poul kärl lo͝otˈvĭkh dro͞oˈdə [key], 1863–1906, German physicist. Drude first experimented with the physical determinants of optical constants, measuring the optical c...

Du Chaillu, Paul Belloni

(Encyclopedia)Du Chaillu, Paul Belloni pōl bĕlōnēˈ dü shāyüˈ [key], c.1831–1903, French-American explorer in Africa. Born probably in Paris, he spent his youth on the west coast of Africa, where his fath...

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