Earth

Earth rotation is the movement of the Earth around its axis. It is the basis for determining time on Earth. One day on Earth is one rotation of the Earth around its axis, which lasts approximately 24 hours. However, the speed of the Earth's rotation is not constant and can vary at different times of the year and in different years. This requires time adjustments to synchronize it with the rotation of the Earth.

Coordinated Universal Time (UTC) is the standard time used worldwide to coordinate clocks and calendars. It is based on atomic clocks and takes into account time adjustments to synchronize it with the rotation of the Earth. Time adjustments include adding or subtracting "positive" or "negative" seconds to keep UTC synchronized with the rotation of the Earth.

The International Earth Rotation and Reference Systems Service (IERS) monitors the rotation of the Earth and regularly makes time adjustments to keep UTC accurate. This is necessary to ensure that international communications, navigation, and other systems that depend on accurate time can function correctly.

Euler circles are a graphical representation used in logic and set theory to illustrate relationships between sets. They consist of two or more intersecting circles, each of which represents a set, and the area shared by multiple circles represents the intersection of those sets.

Euler circles allow for a visual representation of which sets intersect and which do not. For example, if there are two sets - "dogs" and "animals" - the circle representing the "dogs" set intersects with the circle representing the "animals" set, since all dogs are animals.

Euler circles were invented by Leonhard Euler in the 18th century and have since been widely used in logic, mathematics, computer science, and other fields related to set theory. They provide a simple and intuitive way to visualize complex relationships between sets.

Etymology

The triliteral root hamza rā ḍād (أ ر ض) occurs in the Quran 461 times.

Compare with Hebrew. אֶרֶץ - erets - earth.

Arabic word أرض - ard is earth, like the English earth, along with Middle English erthe, derived from Old English eorþe (earth); Earth"), derived from Proto-Germanic "*erþō" ("land"), from Old Saxon "ertha", Danish "aarde", Middle Danish "eerde", goes back to Proto-Indo-European "*h₁er

Creation of the Earth

(31:25) If you ask them: "Who created the Universes and the Earth (Arab. وَالْأَرْضَ, wal-arḍa)?" They will say, "God." Say, "Praise be to God." Yet, most of them do not know.

(16:3) He created the universes and the earth (Arab. وَالْأَرْضَ, wal-arḍa) with the truth. He is High above the partners they have set up.

Initiator of the Universes and the Earth

(2:117) Initiator of the Universes and the Earth (Arab. وَالْأَرْضِ, wal-arḍi), when He decrees a command, He merely says to it, "Be," and it is.

(6:101) Initiator of the Universes and the Earth (Arab. وَالْأَرْضِ, wal-arḍi), how can be for Him a son, when He did not take a wife? And He created all things and He is knowledgeable over all things.

Creation in the Earth

(2:29) He is the One who created for you all that is in The Earth (Arab. الْأَرْضِ, al-arḍi), then He attended to the Universe and made it seven universes, and He is aware of all things.

(13:3) And He is the One who solidified The Earth (Arab. الْأَرْضَ, l-arḍa) (crust), established on it mountain ranges and rivers, and from every fruit He made on it, a pair of two. He (causes) the night to cover the day. Verily, in that are (solid) signs for a people who use allegorical thinking.

Signs in the Earth

(45:3) Surely, in the universes and the earth (Arab. وَالْأَرْضِ, wal-arḍi) are signs for those who acknowledge.

(51:20) In the earth (Arab. الْأَرْضِ, l-arḍi) are signs for those who are certain.

Other

(5:17) Ingrates indeed are those who have said, "God is the Messiah the son of Mary."Say, "Who has any power against God if He had wanted to destroy the Messiah son of Mary, and his mother, and all who are on earth!" To God is the sovereignty of the heavens and the earth (Arab. وَالْأَرْضِ, wal-arḍi) and all that is inbetween; He creates what He pleases. God is capable of all things.

(17:55) Your Lord is fully aware of who is in the Universes and the earth (Arab. وَالْأَرْضِ, wal-arḍi). We have preferred some prophets over others, and We gave David psalms.

(28:19) But when he intended to grip the one, who was their enemy, he said, "O Moses! Do you intend to kill me, as you killed a person yesterday? Obviously, you intend to be a despot on the Earth (Arab. وَالْأَرْضِ, wal-arḍi)! And you do not intend to be among (self) improvers."

(31:27) If all the trees on the earth (Arab. الْأَرْضِ, l-arḍi) were made into pens, and the sea (of ink) were supplied by seven more seas, words of God would not run out. God is Noble, Wise.