What are two technologies that have influenced human population growth since 1700.?

Two significant technologies that have influenced human population growth since 1700 are the steam engine and modern medicine. The steam engine revolutionized transportation and industry, leading to increased productivity and urbanization, which in turn supported larger populations. Meanwhile, advancements in medicine, such as vaccines and antibiotics, dramatically reduced mortality rates and improved health, contributing to rapid population growth in the 19th and 20th centuries.