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He developed the theory that planets move in concentric circles around the earth?
Wiki User
∙ 13y ago
AAristotle developed the theory that planets are spheres and move in concentric circles around the sun
Wiki User
∙ 13y ago
This theory was developed by the ancient Greek astronomer Claudius Ptolemy. Known as the Ptolemaic system, it held that planets move in circular orbits around the Earth. This geocentric model was widely accepted until the heliocentric model proposed by Copernicus in the 16th century.
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∙ 12y agoPtolemy.
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Bone Cells are arranged in concentric circles around the osteonic harversian canals T or F?
True. Bone cells, such as osteocytes, are indeed arranged in concentric circles around the Haversian canals in compact bone tissue to form structural units called osteons.
What is the matrix hard owing to calcium salts?
Osseous tissue has cells that are arranged in concentric circles around a nutrient canal matrix and is hard due to calcium salts.
For an observer at the north pole what would the star trails look like?
At the North Pole, stars appear to move in circular paths around the celestial pole, forming concentric circles. The North Star, Polaris, is located almost directly above the North Pole, so it remains nearly stationary while other stars appear to rotate around it. This creates the illusion of circular star trails centered around Polaris.
Do moon orbits or circles the sun?
Moons orbit around its planet while the planets orbit the Sun, therefore moons circle the Sun.
Who thought that planets moved in little circles which moved in bigger circle?
Ancient astronomer Ptolemy proposed the geocentric model of the universe in the 2nd century AD. According to this model, planets moved in small circles called epicycles, which in turn moved in larger circles around the Earth. This theory was later replaced by the heliocentric model proposed by Copernicus in the 16th century.
What is the use of concentric circles?
The use of concentric circles is most commonly used on a target. Concentric circles are placed around a target in which each concentric circle has the same center.
Bone Cells are arranged in concentric circles around the osteonic harversian canals T or F?
True. Bone cells, such as osteocytes, are indeed arranged in concentric circles around the Haversian canals in compact bone tissue to form structural units called osteons.
What is the matrix hard owing to calcium salts?
Osseous tissue has cells that are arranged in concentric circles around a nutrient canal matrix and is hard due to calcium salts.
The earth and all the planets does what around the sun?
Circle around the sun some say the sun circles the planets but it does not
Bone cells are arranged in concentric circles around longitudinal tubes called?
osteonic canals
What are epicycles?
In ancient astronomy, epicycles were imaginary circles within orbits used to explain the retrograde motion of planets. The concept was developed to account for the observed movements of planets in the sky.
How Do Planets Travel Around The Sun?
Planets travel around the Sun in elliptical orbits due to the gravitational pull of the Sun. This gravitational force keeps the planets in their respective paths, causing them to move in a continuous loop around the Sun. The speed at which a planet travels around the Sun depends on its distance from the Sun and the mass of the Sun.
What are the layers of calcified matrix called?
The layers of calcified matrix in bone tissue are called lamellae. These lamellae are arranged in concentric circles around central canals called Haversian canals, forming the structure known as an osteon or Haversian system.
What type of bone has lacunae in concentric circles around central canals and is found on the wall of the middle prtion of the long bone?
The type of bone you are referring to is compact bone. It contains osteocytes housed in lacunae arranged in concentric circles called lamellae around central canals (Haversian canals). Compact bone is found on the outer wall of the middle portion of long bones.
What is the Difference between concentric and conglomerate?
Concentric relates to circles or spheres with a common center, while conglomerate refers to a group of diverse or disparate elements that are combined together. In a geological context, a concentric structure has layers arranged around a center, while a conglomerate rock consists of various different types of rock fragments bound together.
Is a magnetic field line about a current-carrying wire extend radially from the wire true?
No, magnetic field lines around a current-carrying wire form concentric circles perpendicular to the wire. The direction of these circles is determined by the right-hand rule.
Are you moving around the sun or it is the sun that moves around the planets?
The planets are considered moving around the sun, even though the sun moves too (in tiny circles opposite the planets' motions). The planets are circling the sun. The sun (dragging the planets along with it) is circling our galaxy's center. Our galaxy (dragging the sun, the planets, and all the other stars) is moving through the universe as well.
