All About Our Planet Earth

Its mass is 97 x 1024 kg. The equatorial circumference is slightly larger than the polar range due to the sun's gravitational pull between the Earth rotation above that axis and the early melting stage of the Earth. Over 6 billion years ago, the huge clouds of the branches of the Milky Way were places where some superstars were formed, and these stars became supernovae. These stars originally consisted of hydrogen and helium produced during the origin of the Big Bang.

This is the earth when we talked about our hometown, the earth, its understanding in the context of our planet, and our planetary exploration about how to give and stimulate information for us to explore ! (Look at the first part - Episode 031 - About the planet: Why explore and why we know) This week we will enter space, but we will not deviate so much. Our quest starts with the definition of our planet's house - solar system. What is it, where it came from, and how far is it actually? From there we sneak into the center and talk about the sun, the mother of all the planets. As we enter the inner solar system (ie rocky planets, Mercury, Venus, Earth, and Mars) our adventure keeps moving outward. We will talk about the exploration, knowing things we have done so far and why it is very exciting. We stopped even on the moon on the earth.

If Earth is our mother and Mars is our father, Venus must be our aunt. Together with Uncle Mercury, they form all the Earth's planet around their grandparents. All of this is important as Venus has the most precise atmosphere of the four continents in this particular astronomical structure. It contains more than 96% of carbon dioxide. Fortunately, the Earth is still only about 1% and is still rising. Therefore, Venus is still hotter than the Earth. The former average surface temperature is currently 800 ° F higher than the latter. Even though Mercury is closest to the sun, this actually makes Venus the hottest planet in the solar system. Because of the carbon-rich atmosphere of Venus, the planet is covered with a thick, opaque layer of highly reflective sulfuric acid covering the surface.

The effective temperature of the earth is much lower than our experience. The average surface temperature of our planet is around 288 K (or 15 ° C) worldwide regardless of the season. This difference lies in the influence of the endothermic component of our atmosphere. This effect is known as the greenhouse effect and refers to a way to change the garden plot by covering them with a glass (or plastic) shell. How the greenhouse effect works is as follows: the Earth 's atmosphere contains many traces of components (or traces) (see Figure 9 for atmospheric composition). The main atmospheric constituents (nitrogen and oxygen) absorb little or no radiation, but some minor components are effective absorbers (Figure 10). Water vapor is particularly effective and effectively absorbed in the infrared wavelength range (Figure 10).