The Earth

You know our planet, the earth is not necessarily regarded as a planet. Until the 16 th century, Greek astronomers believed that the Earth is the center of the solar system when Copernicus discovered that the earth is another planet orbiting the sun. The earth is also the only planet not derived from Greek / Roman mythology. When the Earth was first discovered, astronomers could only study it on space ships. It was not until the 20th century that we had a map of the entire planet.

"A small, vivid, lonely, scenery of the Earth brought about a change in science and philosophical thinking, freeing from the assumption that the earth is a fixed environment and is given permanently to humans. : "This is the decisive moment of the 20th century and he wrote:" Since the Earth's perspective is nowhere else, there is no sign, "These two images and their descendants are the Earth's In commemoration of a day stamp and a poster advertising suicide bombing terrorism, it became an elegant T-shirt and tote bag, a cartoon, a coffee cup. "" Everywhere on the planet means " I have stopped thinking about that. "

In the history before the Earth industry revolution, the climate of the Earth had changed due to nature's cause unrelated to human activities. In most cases, the climate of the earth has changed with changes in sunlight. When the sun's light strikes the surface of the earth, the small vibration of the Earth's orbit has changed. Changes in the sun itself will alternately increase or decrease the amount of solar energy reaching the Earth. Particles from volcanic eruptions reflect sunlight, illuminate the earth, and cool the climate. In the past, volcanic activity has also increased greenhouse gases for millions of years. And it brought global warming.