Two that I know of are a sextant, and maybe an astrolabe
Answer:
Naval bases , Refueling stations.
Explanation:
The Europeans have developed the pacific island of the Fiji, Nauru, Palau, Tonga and the Samoa, Vanuatu for the naval base and the refueling activities, similar to those of the Chinese there traces have been found in the 420 and the 200 B.C. The Melanesians, and Micronesians, Polynesians are some of the island groups that are explored by the Europeans and they are by the Portuguese explorers.
Explanation:
Answer:
sorry I really don't know the answer
In 1880, coal powered a steam engine attached to the world's first
electric generator. Thomas Edison's plant in New York City provided the
first electric light to Wall Street financiers and the New York Times.Only a year later, the world's first hydroelectric plant went on-line in Appleton, Wisconsin.By the late 1800s, a new form of fuel was catching on: petroleum.With the low-cost automobile and the spread of electricity, our
society's energy use changed forever. Power plants became larger and
larger, until we had massive coal plants and hydroelectric dams. Power
lines extended hundreds of miles between cities, bringing electricity to
rural areas during the Great Depression.(this is just a brief description)
Answer:
the center of the earth is called the core
