Which advancements were prominent during the second phase of the Industrial Revolution?

The second phase of the Industrial Revolution, often referred to as the Technological Revolution, saw significant advancements in various technologies, with a strong emphasis on electricity and steel production. This phase occurred roughly from the late 19th century to the early 20th century and marked a dramatic transformation in production processes and infrastructure.

Electricity emerged as a game-changing power source, leading to innovations in communication, manufacturing, and transportation. The ability to harness electric power allowed factories to operate machinery more efficiently, expanded the capabilities of industries, and improved the quality of life through electric lighting and new consumer products.

The steel industry also underwent tremendous progress during this period. The introduction of the Bessemer process greatly increased the production of steel, making it cheaper and more accessible. This led to the expansion of railroads, construction of skyscrapers, and advances in transportation technologies, facilitating rapid urbanization and economic growth.

While the steam engine and railroads were indeed significant inventions of the earlier Industrial Revolution, and the telegraph and photography also played important roles in communication and culture, the defining advancements of the second phase are most accurately identified as advancements in electricity and steel. This makes the choice of electricity and steel the most appropriate answer.