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Annual. Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range of events coordinated globally by EARTHDAY.ORG (formerly Earth Day Network) [1] including 1 billion people in more than 193 countries. [2][1][3] In 1969 at a UNESCO Conference in San ...
Flag of Earth proposed by James W. Cadle in 1970. In May 1970, James W. Cadle, a farmer from Homer, Illinois, proposed his version of the flag of Earth, that consisted of a blue circle representing the Earth, placed in the centre of the flag, in front of a segment of a larger yellow circle, representing the Sun, placed on the left side of the map, and a smaller white circle, representing the ...
In 1970, millions of Americans concerned about the environment observed the first 'Earth Day.' Forty-four years later, the tradition and message of conserving our beautiful planet is still going ...
A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but, unlike maps, they do not distort the surface that they portray except to scale it down. A model globe of Earth is called a terrestrial globe. A model globe of the celestial sphere is called a celestial globe.
There are 400 trees for every person on earth. Earth Day Facts (Jessica Zaccaria / Getty Images/iStockphoto) A 2015 study estimated that there are roughly 3 trillion trees on earth, give or take a ...
First dedicated and first published Earth observation images from outer space, first published on March 25, 1947. [9][10][11][12] July 26, 1948. First prepared wide-angle panorama of Earth from outer space (the 1946 flight did already record a panorama swing). [citation needed] October 5, 1954. Aerobee AJ10-24.
In Chinese mysticism, the classical element "Earth" is represented by the trigram of three broken lines in the I Ching (☷). [6] The Western (early modern) alchemical symbol for earth is a downward-pointing triangle bisected by a horizontal line (🜃). [7] Other symbols for the earth in alchemy or mysticism include the square and the serpent.
Earth is rounded into an ellipsoid with a circumference of about 40,000 km. It is the densest planet in the Solar System. Of the four rocky planets, it is the largest and most massive. Earth is about eight light-minutes away from the Sun and orbits it, taking a year (about 365.25 days) to complete one revolution.