• 1 · Religion and Magic
• 2 · Nature
• 3 · Human Being, Man in General
• 4 · Society, Civilization, Culture
• 5 · Abstract Ideas and Concepts
• 6 · History
• 7 · Bible
• 8 · Literature
• 9 · Classical Mythology and Ancient History

• Top
• 4 · Society, Civilization, Culture
• 49 · education, science and learning

49E · science and technology

• 49E1 · astronomy (and cosmography)
• 49E2 · physics and mechanics
• 49E3 · chemistry
• 49E5 · geology
• 49E6 · meteorology
• 49E7 · technology
• 49E8 · laboratory
• 49E9 · experiment, test ~ science and technology
• 49E(+1) · science and technology (+ scholar, scientist (at work))
• 49E(+2) · science and technology (+ scholar, scientist in non-work situations)
• 49E(+3) · science and technology (+ portrait of scholar, scientist)