Final answer:
During the Civil War, railroads and the electric telegraph were two significant new technologies that changed logistics and communications, giving an advantage to the Northern states.
Step-by-step explanation:
The Civil War saw the introduction of many new technologies that changed the nature of warfare. Two notable examples are the railroads and the telegraph. The use of railroads during the Civil War allowed for quicker and more efficient troop transportation and movement of supplies. The electric telegraph revolutionized military communication by providing a means of transmitting messages over long distances instantaneously, which also made war news more readily available. Both technologies played essential roles in the industrialized war effort and significantly benefited the Northern states due to their more developed infrastructure.