Which of the following was not an accomplishment of the Office of Scientist Research? A. Improvements in sonar B. Improvements in radar C. Improved Internet access D. The development of “wonder drugs” like penicillin

 The option that was not an accomplishment of the Office of Scientific Research and Development (OSRD) during World War II is C. Improved Internet access. The Internet as we know it today did not come into existence until long after World War II, with its early foundations in the ARPANET project of the 1960s, which was overseen by the Advanced Research Projects Agency (ARPA).

Extra: The Office of Scientific Research and Development (OSRD), led by Vannevar Bush during World War II, was responsible for some significant advances in technology that contributed to the war effort. The OSRD helped to improve sonar technology, which uses sound propagation under water, primarily for navigating submarines and detecting enemy vessels. Additionally, the OSRD played a crucial role in the advancements of radar technology, which uses radio waves to detect the range, speed, and other characteristics of distant objects like planes and ships.

The development of "wonder drugs" such as penicillin is another important achievement associated with the OSRD. Penicillin, discovered by Alexander Fleming in 1928, was mass-produced during World War II and became a vital resource for treating bacterial infections in wounded soldiers.

The rise of the Internet came about later in the 20th century and can be attributed to work done by researchers and programs supported by the U.S. Department of Defense, including ARPA, which later became the Defense Advanced Research Projects Agency (DARPA). The initial goal of the ARPANET was to create a reliable and decentralized network that would allow computers to communicate with each other, sharing resources and information. This project laid down the foundational protocols that would eventually evolve into the global Internet.