orgin of the Earth - breif note?

Question

i want to know about the zero seconds of earth born.

Answer 1

I don't believe there was any zero seconds to earth's birth. The whole process took a very long time. When the sun was born it has accretion disk, this disk is what everything in the solar system is made of. Think if it this way… You have a whirlpool and there are many things in it. The only exception is that instead of slowly moving towards the center of the whirlpool everything is stable as it circles. Well, depending upon the size of material as it circles it will be moving at different rates, this material collides sometimes massing together sometimes not. Eventually material will start to mass up together. This massing is the actual formation of a planet. Left over from this time period are the Comets, due to their large orbit outside of the plain of the solar system they never came into contact with any other solar bodies and stayed in their orbit. Hope this helps.

Answer 2

Megsman's answer is good, but let me add my own "spin".

In the beginning, what became the entire solar system was a slowly rotating cloud of material. A lot of it was hydrogen and helium, but there were other elements created from explosions (supernovas) of other stars.

Gravity made the cloud get smaller. As it got smaller, it started rotating faster (like a figure skater doing a spin). As it spun faster, centrifugal force made it spread out horizontally, while the gravity made it continue to get smaller vertically (like a pizza crust being spun).

The vast majority of this material coalesced at the center in a big ball that became the sun. Close in, the gravity was stronger than the centrifugal force, and that's why there was a ball rather than a flat disk.

But outside the center region, a lot of material was still revolving, including some clumps and eddy currents. These clumps and eddy currents had their own spin, as the whole thing continued to revolve around the forming sun. The spinning clumps, which had their own gravity, became bigger as they swept nearby regions clean. Eventually the growing clumps turned into the planets.

The inner planets -- Mercury, Venus, Earth, and Mars -- had most of their lighter, gaseous elements swept away, leaving the rocky remains that we know today. The outer planets such as Jupiter and Saturn held onto the light elements and became gas giants.

That's how the earth was born.

Answer 3

Earth is not born like you were born. Earth was a collection of derbies in the space that was attracted by the suns gravitational force. It took a long time. For instance scientists believe moon was part of earth and was blown out by a colliding object from space

Answer 4

The origin of the Earth////////////////////////////////////////////////////////////////////
The age of the Earth was once, and still is, a matter great debate. In 1650 Archbishop Ussher used the Bible to calculate that the Earth was created in 4004BC. Later on in the mid-nineteenth century Charles Darwin believed that the Earth must be extremely old because he recognised that natural selection and evolution required vast amounts of time.

It wasn't until the discovery of radioactivity that scientists began to put a timescale on the history of the Earth. Rocks often contain heavy radioactive elements which decay over long periods of time, the decay is unaffected by the physical and chemical conditions and different elements decay at different rates (These rates are slow and half-lifes of several hundred million years are not uncommon)

Throughout this century the race has been on to discover the oldest rocks in the world. The oldest volcanic rock found so far has been dated at 3.75 billion years old, but this is not the whole story. Meteorites created at the same time as the Earth hit us all the time, radioactive dating shows that they are about 4.55 billion years old.

THE EARLY ATMOSPHERE

The present composition of the atmosphere is: 21% OXYGEN
78% NITROGEN
0.04% CARBON DIOXIDE
~0.9% ARGON

The atmosphere wasn't like this when the Earth was created over 4½ billion years ago.

THE FIRST BILLION YEARS

The Earth's surface was originally molten, as it cooled the volcanoes belched out massive amounts of CARBON DIOXIDE, STEAM, AMMONIA and METHANE. There was NO OXYGEN. The STEAM condensed to form water which then produced shallow seas.

Evidence points to bacteria flourishing 3.8 billion years ago so this means that life got under way about 700 million years after the Earth was created. Such early forms of life existed in the shallow oceans close to thermal vents, these vents were a source of heat and minerals.

THE NEXT BILLION YEARS

These primitive life forms then took the next evolutionary step and started to PHOTOSYNTHESISE (using sunlight to convert carbon dioxide and water to food energy and oxygen). This was an important turning point in Earth history because the carbon dioxide in the atmosphere was being converted to oxygen.

These green plants went on producing oxygen (and removing the CO2).
Most of the carbon from the carbon dioxide in the air became locked up in sedimentary rocks as carbonates and fossil fuels. Carbon dioxide also dissolved into the oceans.
The ammonia and methane in the atmosphere reacted with the oxygen.
Nitrogen gas was released, partly from the reaction between ammonia and oxygen, but mainly from living organisms such as denitrifying bacteria. (remember that nitrogen is a very unreactive gas and it has built up slowly).

THE LAST 2½ BILLION YEARS OR SO

As soon as the oxygen was produced by photosynthesis it was taken out again by reacting with other elements (such as iron).This continued until about 2.1 billion years ago when the concentration of oxygen increased markedly. As oxygen levels built up and then . . . . . .

The ozone layer was formed which started to filter out harmful ultraviolet rays. This allowed the evolution of new living organisms in the shallow seas.

ANOTHER THOUGHT

Earth, along with the other planets, is believed to have been born 4.5 billion years ago as a solidified cloud of dust and gases left over from the creation of the Sun. For perhaps 500 million years, the interior of Earth stayed solid and relatively cool, perhaps 2,000°F. The main ingredients, according to the best available evidence, were iron and silicates, with small amounts of other elements, some of them radioactive. As millions of years passed, energy released by radioactive decay—mostly of uranium, thorium, and potassium—gradually heated Earth, melting some of its constituents. The iron melted before the silicates, and, being heavier, sank toward the center. This forced up the silicates that it found there. After many years, the iron reached the center, almost 4,000 mi deep, and began to accumulate. No eyes were around at that time to view the turmoil that must have taken place on the face of Earth—gigantic heaves and bubblings on the surface, exploding volcanoes, and flowing lava covering everything in sight. Finally, the iron in the center accumulated as the core. Around it, a thin but fairly stable crust of solid rock formed as Earth cooled. Depressions in the crust were natural basins in which water, rising from the interior of the planet through volcanoes and fissures, collected to form the oceans. Slowly, Earth acquired its present appearance

Answer 5

Refer Big Bang's theory in any one of Sir Stephen Hawkings' books.

Answer 6

well the earth was just rock, with not too much atmosphere, it was extermemly hot, desolate, arid adn little life--for now anyway. It happened becasue of a big bang--when a black hole absorbed so much it exploded.

Answer 7

took billions of years to form nothing happens in zero seconds for gas to collect and gravity to pull particles togther.

Answer 8

birth took much longer that 0 seconds
when do you define earth to be earth ?
when it is composed of 1 atom?
you need to be more specific.