Gustave Eiffel built the Eiffel Tower as a centerpiece for the 1889 Exposition Universelle (World's Fair) held in Paris to celebrate the 100th anniversary of the French Revolution. The tower was intended to showcase French engineering and architectural prowess to the world. Eiffel also saw the tower as a symbol of modernity and progress, representing the industrial age and the advancements in iron construction techniques. **

"The Trout" is a painting by French artist Gustave Courbet, created in 1872. The painting depicts a serene and idyllic scene of a woman fishing in a stream, with a trout caught on her line. Courbet's realistic style captures the natural beauty of the landscape and the peacefulness of the moment. The painting is considered a prime example of Courbet's ability to capture the essence of everyday life in a simple yet powerful way. **

"Die Forelle" is a painting by the French artist Gustave Courbet, completed in 1872. The title "Die Forelle" translates to "The Trout" in English, and the painting depicts a dead trout lying on a bed of grass and wildflowers. The work is part of Courbet's series of still-life paintings, which often featured scenes of hunting and fishing. "Die Forelle" is known for its detailed and realistic portrayal of the fish and its surroundings, showcasing Courbet's skill in capturing the natural world. **

Prometheus was depicted by Gustave Moreau as a heroic figure, often shown in a dramatic and powerful pose. Moreau's paintings of Prometheus often emphasized his defiance against the gods and his willingness to suffer for the benefit of humanity. The artist's use of vibrant colors and intricate details in his depictions of Prometheus conveyed a sense of strength and resilience in the face of adversity. Overall, Moreau's portrayal of Prometheus captured the mythological figure's rebellious spirit and his enduring legacy as a symbol of human struggle and progress. **

Yes, Adolf Hitler did read 'The Crowd: A Study of the Popular Mind' by Gustave Le Bon. Hitler was known to have been influenced by the ideas presented in the book, particularly the concept of manipulating the emotions and psychology of the masses to gain power and control. This book helped shape Hitler's understanding of crowd psychology and how to use it to further his political agenda. **

The title of the painting by Gustave Caillebotte that depicts a street in Paris on a rainy day is "Paris Street; Rainy Day." This masterpiece, created in 1877, is known for its realistic portrayal of urban life in Paris during the late 19th century. The painting captures the reflections of the wet cobblestones, the bustling activity of pedestrians, and the elegant architecture of the city. **

Self-luminous bodies are objects that emit their own light, as opposed to reflecting light from another source. Examples of self-luminous bodies include stars, the sun, and certain types of light bulbs. These objects generate their own energy through processes like nuclear fusion or electrical current, which produces light as a byproduct. **

No, the luminous clock is not radioactive. The luminescence in the clock is typically achieved using a phosphorescent material that absorbs light and then slowly releases it over time. This process does not involve any radioactive materials. The glow from the clock is simply a result of this light-absorption and emission process. **