What is meant by the SECOND industrial revolution?

What is meant by the SECOND industrial revolution? What’s new here, compared with the first, in materials, production, technology, social impact? What is “mass society”? What’s good about it and why did (do!) many criticism the concept? How does “mass society” relate to the second industrial revolution? How is feminism and new forms of politics (see chapter 22, part 22-3!) related to economic development in this period? 23-3 & 23-4. Art, Literature, Science, Social Science What new forms of ‌‍‍‍‌‍‍‌‌‌‍‌‍‍‍‍‌‍‌‌artistic expression arose in these years? How did (some) realist painters and writers use their art to critique society? Why did some artists choose increasingly abstract methods of artistic expression? Which of these artists appeal to you most and why? How did “social science” as a category continue the Enlightenment project? Why do we remember Marie Curie / Maria Sk?odowska? Why did thinkers / social scientists such as Nietzsche and Freud critique “reason” (in particular in the form of “positivism” – what was that?) — what were their arguments‌‍‍‍‌‍‍‌‌‌‍‌‍‍‍‍‌‍‌‌?