Angular Momentum Puzzle

Nonfiction, Science & Nature, Science, Physics, Gravity
Cover of the book Angular Momentum Puzzle by James Constant, James Constant
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: James Constant ISBN: 9781310409462
Publisher: James Constant Publication: January 28, 2015
Imprint: Smashwords Edition Language: English
Author: James Constant
ISBN: 9781310409462
Publisher: James Constant
Publication: January 28, 2015
Imprint: Smashwords Edition
Language: English

Observation shows that all of the planets orbit the Sun in the same direction (counterclockwise as seen from above the north pole of Earth); that just about all of the planets spin in the same direction they orbit (the exceptions are Venus, Uranus, and Pluto), and this is in the same direction in which the Sun rotates; and that most of the biggest moons of each of the planets orbits around their planet in the same direction the planet spins. Moreover, the orbits are arranged, we see that they almost lie in a single plane (except Pluto and, to a lesser degree, Mercury). The most widely accepted theory of planetary formation is known as the nebular hypothesis. The Laplacian nebular model dominated in the 19th century, but it encountered a number of difficulties. The main problem was angular momentum distribution between the Sun and planets. The planets have 99% of the angular momentum, and this fact could not be explained by the nebular model. As a result this theory of planet formation was largely abandoned at the beginning of the 20th century. However, the resuscitated theory still encounters a number of problems: how does the material, which is accreted by the proto-star, lose its angular momentum?; how do 1cm sized particles coalesce into 1km planetesimals?; and how are giant planets formed? The nebular hypothesis tells us that there is an angular momentum puzzle in the solar system. Certainly, there is angular momentum in the solar system. But, is there a puzzle?

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

Observation shows that all of the planets orbit the Sun in the same direction (counterclockwise as seen from above the north pole of Earth); that just about all of the planets spin in the same direction they orbit (the exceptions are Venus, Uranus, and Pluto), and this is in the same direction in which the Sun rotates; and that most of the biggest moons of each of the planets orbits around their planet in the same direction the planet spins. Moreover, the orbits are arranged, we see that they almost lie in a single plane (except Pluto and, to a lesser degree, Mercury). The most widely accepted theory of planetary formation is known as the nebular hypothesis. The Laplacian nebular model dominated in the 19th century, but it encountered a number of difficulties. The main problem was angular momentum distribution between the Sun and planets. The planets have 99% of the angular momentum, and this fact could not be explained by the nebular model. As a result this theory of planet formation was largely abandoned at the beginning of the 20th century. However, the resuscitated theory still encounters a number of problems: how does the material, which is accreted by the proto-star, lose its angular momentum?; how do 1cm sized particles coalesce into 1km planetesimals?; and how are giant planets formed? The nebular hypothesis tells us that there is an angular momentum puzzle in the solar system. Certainly, there is angular momentum in the solar system. But, is there a puzzle?

More books from James Constant

Cover of the book Greek Elites and Debt Crisis by James Constant
Cover of the book Petition for Certiorari – Patent Case 94-782 - Federal Rule of Civil Procedure 12(h)(3) - Patent Statute 35 USC 261 – Judgment lien Statute 12 USC 1963 by James Constant
Cover of the book Petition for Certiorari: Denied Without Opinion Patent Case 93-1413 by James Constant
Cover of the book How the Supreme Court Emasculates Patent Law by James Constant
Cover of the book Petition for Certiorari Denied Without Opinion: Patent Case 93-1518 by James Constant
Cover of the book Einstein's Fictional Gravitational Waves by James Constant
Cover of the book Petitions Denied Without Opinion: Supreme Court Cases by James Constant
Cover of the book The Navier-Stokes Millenium Problem by James Constant
Cover of the book Motion to Void Judgment by James Constant
Cover of the book Argument and Program for Certainty in Law by James Constant
Cover of the book The Causes of Law by James Constant
Cover of the book Extended Zeta Functions Prove or Dis-prove Riemann's Hypothesis by James Constant
Cover of the book Newton's Gravitation and Cosmic Expansion (I. Non-Relativistic) by James Constant
Cover of the book Einstein's Geometry and Tests by James Constant
Cover of the book Innovation and Population Growth by James Constant
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy