Origin of universe and life
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The solar system consists of the Sun and objects that orbit around it. It formed from a large cloud of gas and dust collapsing under gravity around 4.6 billion years ago. The Sun provides energy to the solar system in the form of radiation. There are 8 major planets that orbit the Sun at varying distances and speeds, with Earth being the third planet from the Sun.
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A nebula is a cloud of gas and dust that remains after a supernova explosion. As the nebula collapsed due to gravitational forces, most material formed the Sun and planets closest to the Sun lost their light gases, while planets further out retained them to become gas giants. The Solar System formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago.
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The document summarizes the formation of the solar system based on the nebular hypothesis. It explains that the solar system formed from the gravitational collapse of a giant gas and dust cloud about 4.6 billion years ago. As the cloud collapsed and spun faster, the heavier elements collected in the center to form the inner terrestrial planets, while the outer parts formed the outer gaseous jovian planets. Over time, small particles collided and merged to form larger bodies called planetesimals, which eventually formed the planets.
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Solar system
SOLAR SYSTEM
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COMPOSITION OF SOLAR SYSTEM
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Planets: 0.135%
Comets: 0.01%
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Minor Planets: 0.0000002%
Meteoroids: 0.0000001%
Interplanetary Medium: 0.0000001%
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The document discusses the universe and the solar system. It begins by explaining that the Big Bang occurred approximately 13.7 billion years ago and provides evidence for this theory. It then describes different models of the universe throughout history, from the geocentric to heliocentric models. The document also discusses the size of the universe, noting that galaxies are vast collections of stars, dust and gases that appear in clusters. Our galaxy is the Milky Way. It then provides details about the components of the solar system, including the sun, inner and outer planets, dwarf planets, asteroids, comets and moons.
The Solar System
The universe contains everything that exists, including stars, planets, and other celestial bodies. The Sun is a star that formed around 4.6 billion years ago from a cloud of gas and dust. It is extremely hot at its core and powers the solar system. The Sun has internal layers and surface features like sunspots and solar flares. Orbiting the Sun are eight planets in our solar system, including four terrestrial planets closest to the Sun and four gas giants further out.
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This document provides information about the solar system and its key components. It lists the nine planets in our solar system, from the Sun to Pluto. It explains that the solar system formed from a giant cloud of gas and dust in space that was disturbed by a supernova explosion, causing it to squeeze and form the Sun and planets. It provides details about each planet's characteristics, sizes and conditions. It also describes the Sun as the center of the system containing 98% of the mass, and notes Earth's moon Luna's proximity and surface features like mountains and craters.
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The document defines war as an armed contest between independent political units using military force to pursue policy goals. It discusses the causes of World War 1, including nationalism, alliances, and the assassination of Archduke Franz Ferdinand. The key events of the war are summarized, from the Schlieffen Plan to the Christmas truce. Major consequences included the collapse of several empires, emergence of new states, and the signing of peace treaties like Versailles.
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Origin of universe and life
- 2. WHAT IS A SOLAR SYSTEM? The solar system is the sun and all the objects that travel around it.
- 4. MOON COMES TO JUT SUN M VEMS TO J. SUN
- 5. FUNCTION OF THE SUN � It gives, energy, ultraviolet, X & Gama Rays � Radio Waves & Plasma � Plages & Sunspots Wait a Minute to Compare the Sun with the Protostar
- 7. MONISTIC …?
- 8. MONISTIC …? Solar system was formed from single flat cloud of gas. Rene Descartes 1600
- 9. Formation of Solar System Supernova Nebular Protostar Protoplanetary Disk Nebular Theory, Simon De Laplace-1796
- 10. DUALISTIC …?
- 11. DUALISTIC …? Solar system was formed when some huge object passed near the sun. Comte do Buffon 1700
- 12. Formation of Solar System Nebulae Protoplanetary disk Gravity Pulls Planets & Moons Planetesimal Theory, Viktor Safronov -Russia
- 13. PLANETS
- 14. Piazzi 1801
- 16. Planet Distance M km Diameter km Revolution days Moon Mercury 58 4,843 88 0 Venus 108 12.310 225 0 Earth 150 12, 746 365 1 Mars 228 6,790 1.9 years 2 Jupiter 779 142, 836 11.9 years 12 Saturn 1,427 119,348 29.5 years 10 Uranus 2,869 47,100 84 years 5 Neptune 4,495 44,700 164.8 years 2
- 17. Minor planets, irregular shapes Shooting stars/rocks attracted by gravity Debris of an object Glowing gas and dust particles near the sun
- 18. EARTH SHAPE
- 19. OBLATE SPHEROID
- 20. CIRCUMFERENCE, DIAMETER, RADIUS 40,075 km 12,760 km 6,380 km 12,715 km
- 22. ToP
- 24. FORMULA Y/400 (00) OR Y/4 � 2000 � 2004 � 2008 � 2012 � 2016 � 2020 � 2024 � 2028, � 2032 � 2036 � 2040 � 2044 � 2048 � 2100 � 2010 � 1700 � 1800 � 1900 Leap Years Not a Leap Year
- 25. PERIHELION, APHELION & APSIDE
- 27. CONTENTS OF THE ATMOSPHERE � Constant Gases (nitrogen 78%, oxygen 21%, Argon 1%) � Variable Gases 1. Carbon Dioxide 0.04% (absorb energy, photosynthesis) 2. Water Vapor 1% � Ozone Layer � Impurities