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<title>Answerpail Q&amp;A - Recent activity in Science/Mathematics</title>
<link>https://answerpail.com/index.php/activity/science-mathematics</link>
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<item>
<title>Answered: How does the sun not run out of fuel?</title>
<link>https://answerpail.com/index.php/1804/how-does-the-sun-not-run-out-of-fuel?show=1810#a1810</link>
<description>The Sun does not run out of fuel as the Sun is powered by nuclear fusion and not burning like a normal fire.&lt;br /&gt;
&lt;br /&gt;
The Sun is powered by nuclear fusion, which is a very ultra efficient process, where immense gravitational pressure crushes hydrogen atoms together to form helium.&lt;br /&gt;
&lt;br /&gt;
And because of it&amp;#039;s colossal mass and this efficiency, the Sun still has enough fuel to last around 5 billion more years. &lt;br /&gt;
&lt;br /&gt;
To keep burning, the sun is fueled by hydrogen which squeezes and converts into helium through a processed called nuclear fusion.&lt;br /&gt;
&lt;br /&gt;
The Sun is not literally burning like a campfire for example, as a normal fire requires oxygen.&lt;br /&gt;
&lt;br /&gt;
And instead the Sun functions as a giant natural nuclear reactor.&lt;br /&gt;
&lt;br /&gt;
The Sun is composed of around 73 percent hydrogen and 25 percent helium.&lt;br /&gt;
&lt;br /&gt;
And deep in the Sun&amp;#039;s core, under extreme gravitational pressure and temperatures, the hydrogen and the atoms fuse together to form helium.&lt;br /&gt;
&lt;br /&gt;
And every single second, the Sun also fuses around 600 million tons of hydrogen into helium.&lt;br /&gt;
&lt;br /&gt;
This process also converts a small fraction of that mass into pure, raw energy.&lt;br /&gt;
&lt;br /&gt;
The Sun also has been fusing hydrogen for around 4.6 billion years and still has enough hydrogen remaining in it&amp;#039;s core to fuel the process for around another 5 billion years.&lt;br /&gt;
&lt;br /&gt;
The Sun could eventually stop burning, but it would take billions of years for that to occur. &lt;br /&gt;
&lt;br /&gt;
Inertia and the conservation of angular momentum is also what keeps the planet Earth spinning as the earth does not need a constant energy source or engine to keep it turning.&lt;br /&gt;
&lt;br /&gt;
The solar system formed over 4.5 billion years ago from a massive, swirling cloud of gas and dust collapsing under it&amp;#039;s own gravity and as the cloud shrank, it spun faster, which is similar to that of how an ice skater pulls in their arms to spin faster.&lt;br /&gt;
&lt;br /&gt;
The debris that clumped together to form Earth inherited the spinning motion and according to Newton&amp;#039;s first law of motion, it states that an object that is in motion will stay in motion unless acted upon by an outside force.&lt;br /&gt;
&lt;br /&gt;
And because space is also practically a vacuum with almost no air resistance or friction to slow it down, Earth continues to coast on this initial, ancient momentum. &lt;br /&gt;
&lt;br /&gt;
The universe and earth and the planets began forming around 13.8 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Although the universe, earth and planets was not formed from literal nothing, but instead was formed from an absence of space and time.&lt;br /&gt;
&lt;br /&gt;
And as space rapidly expanded and cooled, matter condensed.&lt;br /&gt;
&lt;br /&gt;
Then gravity subsequently pulled the gas and dust together to form the stars, planets and the Earth we live on. &lt;br /&gt;
&lt;br /&gt;
Around 13.8 billion years ago is when the universe started, where all matter, energy and space were compressed into an infinitely dense point.&lt;br /&gt;
&lt;br /&gt;
Then the expansion occurred, a the universe was not an explosion in space, by instead an explosive expansion of space itself also known as the Big Bang.&lt;br /&gt;
&lt;br /&gt;
And as the universe expanded and cooled, energy then converted into fundamental particles.&lt;br /&gt;
&lt;br /&gt;
These particles then bonded to form the simplest elements, mostly hydrogen and helium.&lt;br /&gt;
&lt;br /&gt;
The sun and the solar system began forming around 4.6 billion years ago.&lt;br /&gt;
&lt;br /&gt;
The sun and solar system forming started with cloud collapse, where a massive, swirling cloud of interstellar gas and dust, which was triggered by the shockwave of a nearby exploding star, collapsed under it&amp;#039;s own gravity. &lt;br /&gt;
&lt;br /&gt;
And for the igniting of the sun, the vast majority of this material also condensed at the center and created immense pressure and heat, eventually lighting the sun.&lt;br /&gt;
&lt;br /&gt;
And then finally the Earth formed around 4.5 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Earth forming around 4.5 billion years ago started with dust to planets, where leftover dust and debris swirling around the infant sun collided, stuck together and then gradually grew into larger bodies called planetesimals.&lt;br /&gt;
&lt;br /&gt;
And for the formation of earth, these bodies collided and merged over millions of years to build the rocky, terrestrial planets.&lt;br /&gt;
&lt;br /&gt;
And earth formed as a molten ball of rock and metal.&lt;br /&gt;
&lt;br /&gt;
And as it cooled down, heavier elements like iron sank to the core, while lighter materials also rose to form the crust and mantle.&lt;br /&gt;
&lt;br /&gt;
Earth and all the planets and even all life on earth including us humans has always fascinated me and it&amp;#039;s really amazing and mind boggling to think about.&lt;br /&gt;
&lt;br /&gt;
Even the fact that a man and a woman can have intercourse or sex and a new human can be made inside a woman&amp;#039;s body as a result of sperm and eggs and the process that it goes through.</description>
<category>Science</category>
<guid isPermaLink="true">https://answerpail.com/index.php/1804/how-does-the-sun-not-run-out-of-fuel?show=1810#a1810</guid>
<pubDate>Thu, 04 Jun 2026 14:15:58 +0000</pubDate>
</item>
<item>
<title>Answered: What fuels the sun to keep burning?</title>
<link>https://answerpail.com/index.php/1803/what-fuels-the-sun-to-keep-burning?show=1809#a1809</link>
<description>To keep burning, the sun is fueled by hydrogen which squeezes and converts into helium through a processed called nuclear fusion.&lt;br /&gt;
&lt;br /&gt;
The Sun is not literally burning like a campfire for example, as a normal fire requires oxygen.&lt;br /&gt;
&lt;br /&gt;
And instead the Sun functions as a giant natural nuclear reactor.&lt;br /&gt;
&lt;br /&gt;
The Sun is composed of around 73 percent hydrogen and 25 percent helium.&lt;br /&gt;
&lt;br /&gt;
And deep in the Sun&amp;#039;s core, under extreme gravitational pressure and temperatures, the hydrogen and the atoms fuse together to form helium.&lt;br /&gt;
&lt;br /&gt;
And every single second, the Sun also fuses around 600 million tons of hydrogen into helium.&lt;br /&gt;
&lt;br /&gt;
This process also converts a small fraction of that mass into pure, raw energy.&lt;br /&gt;
&lt;br /&gt;
The Sun also has been fusing hydrogen for around 4.6 billion years and still has enough hydrogen remaining in it&amp;#039;s core to fuel the process for around another 5 billion years.&lt;br /&gt;
&lt;br /&gt;
The Sun could eventually stop burning, but it would take billions of years for that to occur. &lt;br /&gt;
&lt;br /&gt;
Inertia and the conservation of angular momentum is also what keeps the planet Earth spinning as the earth does not need a constant energy source or engine to keep it turning.&lt;br /&gt;
&lt;br /&gt;
The solar system formed over 4.5 billion years ago from a massive, swirling cloud of gas and dust collapsing under it&amp;#039;s own gravity and as the cloud shrank, it spun faster, which is similar to that of how an ice skater pulls in their arms to spin faster.&lt;br /&gt;
&lt;br /&gt;
The debris that clumped together to form Earth inherited the spinning motion and according to Newton&amp;#039;s first law of motion, it states that an object that is in motion will stay in motion unless acted upon by an outside force.&lt;br /&gt;
&lt;br /&gt;
And because space is also practically a vacuum with almost no air resistance or friction to slow it down, Earth continues to coast on this initial, ancient momentum. &lt;br /&gt;
&lt;br /&gt;
The universe and earth and the planets began forming around 13.8 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Although the universe, earth and planets was not formed from literal nothing, but instead was formed from an absence of space and time.&lt;br /&gt;
&lt;br /&gt;
And as space rapidly expanded and cooled, matter condensed.&lt;br /&gt;
&lt;br /&gt;
Then gravity subsequently pulled the gas and dust together to form the stars, planets and the Earth we live on. &lt;br /&gt;
&lt;br /&gt;
Around 13.8 billion years ago is when the universe started, where all matter, energy and space were compressed into an infinitely dense point.&lt;br /&gt;
&lt;br /&gt;
Then the expansion occurred, a the universe was not an explosion in space, by instead an explosive expansion of space itself also known as the Big Bang.&lt;br /&gt;
&lt;br /&gt;
And as the universe expanded and cooled, energy then converted into fundamental particles.&lt;br /&gt;
&lt;br /&gt;
These particles then bonded to form the simplest elements, mostly hydrogen and helium.&lt;br /&gt;
&lt;br /&gt;
The sun and the solar system began forming around 4.6 billion years ago.&lt;br /&gt;
&lt;br /&gt;
The sun and solar system forming started with cloud collapse, where a massive, swirling cloud of interstellar gas and dust, which was triggered by the shockwave of a nearby exploding star, collapsed under it&amp;#039;s own gravity. &lt;br /&gt;
&lt;br /&gt;
And for the igniting of the sun, the vast majority of this material also condensed at the center and created immense pressure and heat, eventually lighting the sun.&lt;br /&gt;
&lt;br /&gt;
And then finally the Earth formed around 4.5 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Earth forming around 4.5 billion years ago started with dust to planets, where leftover dust and debris swirling around the infant sun collided, stuck together and then gradually grew into larger bodies called planetesimals.&lt;br /&gt;
&lt;br /&gt;
And for the formation of earth, these bodies collided and merged over millions of years to build the rocky, terrestrial planets.&lt;br /&gt;
&lt;br /&gt;
And earth formed as a molten ball of rock and metal.&lt;br /&gt;
&lt;br /&gt;
And as it cooled down, heavier elements like iron sank to the core, while lighter materials also rose to form the crust and mantle.&lt;br /&gt;
&lt;br /&gt;
Earth and all the planets and even all life on earth including us humans has always fascinated me and it&amp;#039;s really amazing and mind boggling to think about.&lt;br /&gt;
&lt;br /&gt;
Even the fact that a man and a woman can have intercourse or sex and a new human can be made inside a woman&amp;#039;s body as a result of sperm and eggs and the process that it goes through.</description>
<category>Science</category>
<guid isPermaLink="true">https://answerpail.com/index.php/1803/what-fuels-the-sun-to-keep-burning?show=1809#a1809</guid>
<pubDate>Thu, 04 Jun 2026 14:13:23 +0000</pubDate>
</item>
<item>
<title>Answered: What would happen to Earth if Jupiter stopped spinning?</title>
<link>https://answerpail.com/index.php/1801/what-would-happen-to-earth-if-jupiter-stopped-spinning?show=1808#a1808</link>
<description>If Jupiter stopped spinning, nothing would happen to Earth because of the vast distances in space, Jupiter&amp;#039;s rotation rate actually has no direct physical effect on planet Earth, Earth&amp;#039;s orbit or Earth&amp;#039;s weather.&lt;br /&gt;
&lt;br /&gt;
The gas giant&amp;#039;s rotation would also only change Jupiter&amp;#039;s own atmospheric dynamics, like smoothing out it&amp;#039;s famous storms. &lt;br /&gt;
&lt;br /&gt;
If Earth stopped spinning it would trigger a global extinction event and the momentum of the Earth ceasing to spin would also send everything that was and is not physically anchored to bedrock, which includes the oceans and atmosphere flying eastward at speeds as fast as 1,000 mph.&lt;br /&gt;
&lt;br /&gt;
And devastating supersonic winds and colossal tsunamis would also instantly wipe out nearly all surface life on earth. &lt;br /&gt;
&lt;br /&gt;
The planet earth if it stopped spinning would also undergo several catastrophic changes to it&amp;#039;s shape, climate and habitability.&lt;br /&gt;
&lt;br /&gt;
The Earth&amp;#039;s rotation, currently creates a bulge at the equator, if the rotation of Earth did stop, the gravity would slowly pull the planet Earth back into a perfect sphere and cause massive earthquakes and redistribute the oceans.&lt;br /&gt;
&lt;br /&gt;
And without rotation of the Earth, a single day on Earth would also last an entire year.&lt;br /&gt;
&lt;br /&gt;
One side of the planet Earth would face the Sun continuously for 6 months and cause the oceans to boil and the forests to burn and the other side would also be plunged into 6 months of eternal night, causing temperatures to plummet to arctic extremes.&lt;br /&gt;
&lt;br /&gt;
And Earth would also experience a loss of magnetic field if it were to stop spinning.&lt;br /&gt;
&lt;br /&gt;
The protective magnetic field of Earth is generated by the swirling of liquid metal in it&amp;#039;s core, which is also heavily driven by planetary rotation.&lt;br /&gt;
&lt;br /&gt;
And if Earth stopped spinning, the magnetic field would also eventually collapse.&lt;br /&gt;
&lt;br /&gt;
And without the magnetic field, the planet Earth would also be bombarded by deadly solar radiation and cosmic rays, which would also strip away the atmosphere and destroy any remaining life. &lt;br /&gt;
&lt;br /&gt;
The water would also flood toward the poles and create 2 massive oceans and leave a single, continuous ring of dry land around the equator. &lt;br /&gt;
&lt;br /&gt;
Inertia and the conservation of angular momentum is what keeps the planet Earth spinning as the earth does not need a constant energy source or engine to keep it turning.&lt;br /&gt;
&lt;br /&gt;
The solar system formed over 4.5 billion years ago from a massive, swirling cloud of gas and dust collapsing under it&amp;#039;s own gravity and as the cloud shrank, it spun faster, which is similar to that of how an ice skater pulls in their arms to spin faster.&lt;br /&gt;
&lt;br /&gt;
The debris that clumped together to form Earth inherited the spinning motion and according to Newton&amp;#039;s first law of motion, it states that an object that is in motion will stay in motion unless acted upon by an outside force.&lt;br /&gt;
&lt;br /&gt;
And because space is also practically a vacuum with almost no air resistance or friction to slow it down, Earth continues to coast on this initial, ancient momentum. &lt;br /&gt;
&lt;br /&gt;
The universe and earth and the planets began forming around 13.8 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Although the universe, earth and planets was not formed from literal nothing, but instead was formed from an absence of space and time.&lt;br /&gt;
&lt;br /&gt;
And as space rapidly expanded and cooled, matter condensed.&lt;br /&gt;
&lt;br /&gt;
Then gravity subsequently pulled the gas and dust together to form the stars, planets and the Earth we live on. &lt;br /&gt;
&lt;br /&gt;
Around 13.8 billion years ago is when the universe started, where all matter, energy and space were compressed into an infinitely dense point.&lt;br /&gt;
&lt;br /&gt;
Then the expansion occurred, a the universe was not an explosion in space, by instead an explosive expansion of space itself also known as the Big Bang.&lt;br /&gt;
&lt;br /&gt;
And as the universe expanded and cooled, energy then converted into fundamental particles.&lt;br /&gt;
&lt;br /&gt;
These particles then bonded to form the simplest elements, mostly hydrogen and helium.&lt;br /&gt;
&lt;br /&gt;
The sun and the solar system began forming around 4.6 billion years ago.&lt;br /&gt;
&lt;br /&gt;
The sun and solar system forming started with cloud collapse, where a massive, swirling cloud of interstellar gas and dust, which was triggered by the shockwave of a nearby exploding star, collapsed under it&amp;#039;s own gravity. &lt;br /&gt;
&lt;br /&gt;
And for the igniting of the sun, the vast majority of this material also condensed at the center and created immense pressure and heat, eventually lighting the sun.&lt;br /&gt;
&lt;br /&gt;
And then finally the Earth formed around 4.5 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Earth forming around 4.5 billion years ago started with dust to planets, where leftover dust and debris swirling around the infant sun collided, stuck together and then gradually grew into larger bodies called planetesimals.&lt;br /&gt;
&lt;br /&gt;
And for the formation of earth, these bodies collided and merged over millions of years to build the rocky, terrestrial planets.&lt;br /&gt;
&lt;br /&gt;
And earth formed as a molten ball of rock and metal.&lt;br /&gt;
&lt;br /&gt;
And as it cooled down, heavier elements like iron sank to the core, while lighter materials also rose to form the crust and mantle.&lt;br /&gt;
&lt;br /&gt;
Earth and all the planets and even all life on earth including us humans has always fascinated me and it&amp;#039;s really amazing and mind boggling to think about.&lt;br /&gt;
&lt;br /&gt;
Even the fact that a man and a woman can have intercourse or sex and a new human can be made inside a woman&amp;#039;s body as a result of sperm and eggs and the process that it goes through.</description>
<category>Science</category>
<guid isPermaLink="true">https://answerpail.com/index.php/1801/what-would-happen-to-earth-if-jupiter-stopped-spinning?show=1808#a1808</guid>
<pubDate>Thu, 04 Jun 2026 13:16:30 +0000</pubDate>
</item>
<item>
<title>Answered: What would happen if Earth stopped spinning?</title>
<link>https://answerpail.com/index.php/1800/what-would-happen-if-earth-stopped-spinning?show=1807#a1807</link>
<description>If Earth stopped spinning it would trigger a global extinction event and the momentum of the Earth ceasing to spin would also send everything that was and is not physically anchored to bedrock, which includes the oceans and atmosphere flying eastward at speeds as fast as 1,000 mph.&lt;br /&gt;
&lt;br /&gt;
And devastating supersonic winds and colossal tsunamis would also instantly wipe out nearly all surface life on earth. &lt;br /&gt;
&lt;br /&gt;
The planet earth if it stopped spinning would also undergo several catastrophic changes to it&amp;#039;s shape, climate and habitability.&lt;br /&gt;
&lt;br /&gt;
The Earth&amp;#039;s rotation, currently creates a bulge at the equator, if the rotation of Earth did stop, the gravity would slowly pull the planet Earth back into a perfect sphere and cause massive earthquakes and redistribute the oceans.&lt;br /&gt;
&lt;br /&gt;
And without rotation of the Earth, a single day on Earth would also last an entire year.&lt;br /&gt;
&lt;br /&gt;
One side of the planet Earth would face the Sun continuously for 6 months and cause the oceans to boil and the forests to burn and the other side would also be plunged into 6 months of eternal night, causing temperatures to plummet to arctic extremes.&lt;br /&gt;
&lt;br /&gt;
And Earth would also experience a loss of magnetic field if it were to stop spinning.&lt;br /&gt;
&lt;br /&gt;
The protective magnetic field of Earth is generated by the swirling of liquid metal in it&amp;#039;s core, which is also heavily driven by planetary rotation.&lt;br /&gt;
&lt;br /&gt;
And if Earth stopped spinning, the magnetic field would also eventually collapse.&lt;br /&gt;
&lt;br /&gt;
And without the magnetic field, the planet Earth would also be bombarded by deadly solar radiation and cosmic rays, which would also strip away the atmosphere and destroy any remaining life. &lt;br /&gt;
&lt;br /&gt;
The water would also flood toward the poles and create 2 massive oceans and leave a single, continuous ring of dry land around the equator. &lt;br /&gt;
&lt;br /&gt;
Inertia and the conservation of angular momentum is what keeps the planet Earth spinning as the earth does not need a constant energy source or engine to keep it turning.&lt;br /&gt;
&lt;br /&gt;
The solar system formed over 4.5 billion years ago from a massive, swirling cloud of gas and dust collapsing under it&amp;#039;s own gravity and as the cloud shrank, it spun faster, which is similar to that of how an ice skater pulls in their arms to spin faster.&lt;br /&gt;
&lt;br /&gt;
The debris that clumped together to form Earth inherited the spinning motion and according to Newton&amp;#039;s first law of motion, it states that an object that is in motion will stay in motion unless acted upon by an outside force.&lt;br /&gt;
&lt;br /&gt;
And because space is also practically a vacuum with almost no air resistance or friction to slow it down, Earth continues to coast on this initial, ancient momentum. &lt;br /&gt;
&lt;br /&gt;
The universe and earth and the planets began forming around 13.8 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Although the universe, earth and planets was not formed from literal nothing, but instead was formed from an absence of space and time.&lt;br /&gt;
&lt;br /&gt;
And as space rapidly expanded and cooled, matter condensed.&lt;br /&gt;
&lt;br /&gt;
Then gravity subsequently pulled the gas and dust together to form the stars, planets and the Earth we live on. &lt;br /&gt;
&lt;br /&gt;
Around 13.8 billion years ago is when the universe started, where all matter, energy and space were compressed into an infinitely dense point.&lt;br /&gt;
&lt;br /&gt;
Then the expansion occurred, a the universe was not an explosion in space, by instead an explosive expansion of space itself also known as the Big Bang.&lt;br /&gt;
&lt;br /&gt;
And as the universe expanded and cooled, energy then converted into fundamental particles.&lt;br /&gt;
&lt;br /&gt;
These particles then bonded to form the simplest elements, mostly hydrogen and helium.&lt;br /&gt;
&lt;br /&gt;
The sun and the solar system began forming around 4.6 billion years ago.&lt;br /&gt;
&lt;br /&gt;
The sun and solar system forming started with cloud collapse, where a massive, swirling cloud of interstellar gas and dust, which was triggered by the shockwave of a nearby exploding star, collapsed under it&amp;#039;s own gravity. &lt;br /&gt;
&lt;br /&gt;
And for the igniting of the sun, the vast majority of this material also condensed at the center and created immense pressure and heat, eventually lighting the sun.&lt;br /&gt;
&lt;br /&gt;
And then finally the Earth formed around 4.5 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Earth forming around 4.5 billion years ago started with dust to planets, where leftover dust and debris swirling around the infant sun collided, stuck together and then gradually grew into larger bodies called planetesimals.&lt;br /&gt;
&lt;br /&gt;
And for the formation of earth, these bodies collided and merged over millions of years to build the rocky, terrestrial planets.&lt;br /&gt;
&lt;br /&gt;
And earth formed as a molten ball of rock and metal.&lt;br /&gt;
&lt;br /&gt;
And as it cooled down, heavier elements like iron sank to the core, while lighter materials also rose to form the crust and mantle.&lt;br /&gt;
&lt;br /&gt;
Earth and all the planets and even all life on earth including us humans has always fascinated me and it&amp;#039;s really amazing and mind boggling to think about.&lt;br /&gt;
&lt;br /&gt;
Even the fact that a man and a woman can have intercourse or sex and a new human can be made inside a woman&amp;#039;s body as a result of sperm and eggs and the process that it goes through.</description>
<category>Science</category>
<guid isPermaLink="true">https://answerpail.com/index.php/1800/what-would-happen-if-earth-stopped-spinning?show=1807#a1807</guid>
<pubDate>Thu, 04 Jun 2026 13:10:17 +0000</pubDate>
</item>
<item>
<title>Answered: What keeps the planet Earth spinning?</title>
<link>https://answerpail.com/index.php/1802/what-keeps-the-planet-earth-spinning?show=1806#a1806</link>
<description>Inertia and the conservation of angular momentum is what keeps the planet Earth spinning as the earth does not need a constant energy source or engine to keep it turning.&lt;br /&gt;
&lt;br /&gt;
The solar system formed over 4.5 billion years ago from a massive, swirling cloud of gas and dust collapsing under it&amp;#039;s own gravity and as the cloud shrank, it spun faster, which is similar to that of how an ice skater pulls in their arms to spin faster.&lt;br /&gt;
&lt;br /&gt;
The debris that clumped together to form Earth inherited the spinning motion and according to Newton&amp;#039;s first law of motion, it states that an object that is in motion will stay in motion unless acted upon by an outside force.&lt;br /&gt;
&lt;br /&gt;
And because space is also practically a vacuum with almost no air resistance or friction to slow it down, Earth continues to coast on this initial, ancient momentum. &lt;br /&gt;
&lt;br /&gt;
The universe and earth and the planets began forming around 13.8 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Although the universe, earth and planets was not formed from literal nothing, but instead was formed from an absence of space and time.&lt;br /&gt;
&lt;br /&gt;
And as space rapidly expanded and cooled, matter condensed.&lt;br /&gt;
&lt;br /&gt;
Then gravity subsequently pulled the gas and dust together to form the stars, planets and the Earth we live on. &lt;br /&gt;
&lt;br /&gt;
Around 13.8 billion years ago is when the universe started, where all matter, energy and space were compressed into an infinitely dense point.&lt;br /&gt;
&lt;br /&gt;
Then the expansion occurred, a the universe was not an explosion in space, by instead an explosive expansion of space itself also known as the Big Bang.&lt;br /&gt;
&lt;br /&gt;
And as the universe expanded and cooled, energy then converted into fundamental particles.&lt;br /&gt;
&lt;br /&gt;
These particles then bonded to form the simplest elements, mostly hydrogen and helium.&lt;br /&gt;
&lt;br /&gt;
The sun and the solar system began forming around 4.6 billion years ago.&lt;br /&gt;
&lt;br /&gt;
The sun and solar system forming started with cloud collapse, where a massive, swirling cloud of interstellar gas and dust, which was triggered by the shockwave of a nearby exploding star, collapsed under it&amp;#039;s own gravity. &lt;br /&gt;
&lt;br /&gt;
And for the igniting of the sun, the vast majority of this material also condensed at the center and created immense pressure and heat, eventually lighting the sun.&lt;br /&gt;
&lt;br /&gt;
And then finally the Earth formed around 4.5 billion years ago.&lt;br /&gt;
&lt;br /&gt;
Earth forming around 4.5 billion years ago started with dust to planets, where leftover dust and debris swirling around the infant sun collided, stuck together and then gradually grew into larger bodies called planetesimals.&lt;br /&gt;
&lt;br /&gt;
And for the formation of earth, these bodies collided and merged over millions of years to build the rocky, terrestrial planets.&lt;br /&gt;
&lt;br /&gt;
And earth formed as a molten ball of rock and metal.&lt;br /&gt;
&lt;br /&gt;
And as it cooled down, heavier elements like iron sank to the core, while lighter materials also rose to form the crust and mantle.&lt;br /&gt;
&lt;br /&gt;
Earth and all the planets and even all life on earth including us humans has always fascinated me and it&amp;#039;s really amazing and mind boggling to think about.&lt;br /&gt;
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Even the fact that a man and a woman can have intercourse or sex and a new human can be made inside a woman&amp;#039;s body as a result of sperm and eggs and the process that it goes through.</description>
<category>Science</category>
<guid isPermaLink="true">https://answerpail.com/index.php/1802/what-keeps-the-planet-earth-spinning?show=1806#a1806</guid>
<pubDate>Thu, 04 Jun 2026 12:59:58 +0000</pubDate>
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<item>
<title>Answered: How did the universe and earth and the planets begin from nothing?</title>
<link>https://answerpail.com/index.php/1799/how-did-the-universe-and-earth-and-planets-begin-from-nothing?show=1805#a1805</link>
<description>The universe and earth and the planets began forming from nothing around 13.8 billion years ago.&lt;br /&gt;
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Although the universe, earth and planets was not formed from literal nothing, but instead was formed from an absence of space and time.&lt;br /&gt;
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And as space rapidly expanded and cooled, matter condensed.&lt;br /&gt;
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Then gravity subsequently pulled the gas and dust together to form the stars, planets and the Earth we live on. &lt;br /&gt;
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Around 13.8 billion years ago is when the universe started, where all matter, energy and space were compressed into an infinitely dense point.&lt;br /&gt;
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Then the expansion occurred, a the universe was not an explosion in space, by instead an explosive expansion of space itself also known as the Big Bang.&lt;br /&gt;
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And as the universe expanded and cooled, energy then converted into fundamental particles.&lt;br /&gt;
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These particles then bonded to form the simplest elements, mostly hydrogen and helium.&lt;br /&gt;
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The sun and the solar system began forming around 4.6 billion years ago.&lt;br /&gt;
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The sun and solar system forming started with cloud collapse, where a massive, swirling cloud of interstellar gas and dust, which was triggered by the shockwave of a nearby exploding star, collapsed under it&amp;#039;s own gravity. &lt;br /&gt;
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And for the igniting of the sun, the vast majority of this material also condensed at the center and created immense pressure and heat, eventually lighting the sun.&lt;br /&gt;
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And then finally the Earth formed around 4.5 billion years ago.&lt;br /&gt;
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Earth forming around 4.5 billion years ago started with dust to planets, where leftover dust and debris swirling around the infant sun collided, stuck together and then gradually grew into larger bodies called planetesimals.&lt;br /&gt;
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And for the formation of earth, these bodies collided and merged over millions of years to build the rocky, terrestrial planets.&lt;br /&gt;
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And earth formed as a molten ball of rock and metal.&lt;br /&gt;
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And as it cooled down, heavier elements like iron sank to the core, while lighter materials also rose to form the crust and mantle.&lt;br /&gt;
&lt;br /&gt;
Earth and all the planets and even all life on earth including us humans has always fascinated me and it&amp;#039;s really amazing and mind boggling to think about.&lt;br /&gt;
&lt;br /&gt;
Even the fact that a man and a woman can have intercourse or sex and a new human can be made inside a woman&amp;#039;s body as a result of sperm and eggs and the process that it goes through.</description>
<category>Science</category>
<guid isPermaLink="true">https://answerpail.com/index.php/1799/how-did-the-universe-and-earth-and-planets-begin-from-nothing?show=1805#a1805</guid>
<pubDate>Thu, 04 Jun 2026 12:38:37 +0000</pubDate>
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<item>
<title>Answered: What is the meaning of detritus?</title>
<link>https://answerpail.com/index.php/713/what-is-the-meaning-of-detritus?show=1022#a1022</link>
<description>The meaning of detritus is loose waste, debris or even discarded fragments that are left behind when something decays, breaks down or is destroyed. &lt;br /&gt;
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In biology and ecology, detritus means decaying organic matter, like fallen branches, dead leaves or animal waste, that provides food for decomposers.&lt;br /&gt;
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In geology, detritus means loose sand, silt, or gravel that is created naturally by the physical wearing away or the erosion of rocks. &lt;br /&gt;
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Detritus is also known as wreckage or fragments, rubbish or refuse, debris and trash.&lt;br /&gt;
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In biology and ecology, detritus is also known as litter, humus, marine snow and Mulm.&lt;br /&gt;
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In Geology, detritus is also known as clasts, or individual rock fragments, rubble, debris and sediment. &lt;br /&gt;
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In biology, detritus is organic matter that is made up of the decomposing remains of plant material and organisms, including feces.&lt;br /&gt;
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Examples of detritus are dead plant and animal material and even waste products.&lt;br /&gt;
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The detritus serves as a vital source of energy for ecosystems.&lt;br /&gt;
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Examples of detritus in land ecosystems include.&lt;br /&gt;
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Leaf litter, like twigs, fallen leaves and branches.&lt;br /&gt;
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Plant remains, like roots, dead stalks and rotted bark.&lt;br /&gt;
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Animal waste, like feces, molted exoskeletons and shed feathers.&lt;br /&gt;
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Carron, like decomposing animal carcasses.&lt;br /&gt;
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And hummus, like fully decayed organic matter that is mixed with topsoil.&lt;br /&gt;
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Examples of detritus in aquatic and marine ecosystems include.&lt;br /&gt;
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Marine snow, like organic particles, dead plankton, and fecal pellets, which sink to the deep ocean floor.&lt;br /&gt;
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Algae blooms, like dead and decaying algae that floats or rests on the waterbed.&lt;br /&gt;
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Dead coral, like fragments and powdery remains of coral reefs.&lt;br /&gt;
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Mangrove leaves, like decaying mangrove leaves that fall into estuaries.&lt;br /&gt;
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In earth science, the term detritus can also refer to inorganic, loose debris that is formed by erosion.&lt;br /&gt;
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For example, silt and clay, like fine particles that are worn away from larger rock formations and gravel and sand, like small, eroded rock fragments.&lt;br /&gt;
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Detritus is both good and bad.&lt;br /&gt;
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When it comes to detritus, the dead organic matter, waste in the ecosystem and shed skin, the detritus is naturally a good thing and beneficial.&lt;br /&gt;
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Although too much detritus can be bad if the detritus accumulates faster than the ecosystem is able to process it, which leads to poor water quality, algae blooms and toxic ammonia.&lt;br /&gt;
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Detritus is also the cornerstone of the food web, as well as being decomposers and scavengers consume detritus to recycle the vital nutrients back into the environment.&lt;br /&gt;
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Some ways that detritus are good is through nature&amp;#039;s recycling like through biofilm support and nutrient cycling.&lt;br /&gt;
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For biofilm support, the detritus creates a rich base for biofilms, which also serve as an essential food source for smaller organisms.&lt;br /&gt;
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For nutrient cycling, detritivores like fungi, worms, bacteria and insects break down decaying matter into simple elements.&lt;br /&gt;
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And some ways that detritus can be bad include oxygen depletion and fouling the water.&lt;br /&gt;
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In enclosed systems like aquariums for example, detritus in excessive amounts from overfeeding or overstocking decays and spikes nitrate and phosphate levels.&lt;br /&gt;
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And the rapid breakdown of large amounts of waste, also consumes significant amounts of dissolved oxygen.&lt;br /&gt;
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To maintain balance of detritus, in nature the natural cycles of consumption and decomposition keep the detritus in check, which makes human intervention unnecessary.&lt;br /&gt;
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And in aquariums, you can manage detritus by not overfeeding and routinely changing the water out as well as gently siphoning the substrate to prevent toxic buildup of detritus in dead spots.&lt;br /&gt;
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If the detritus is left untreated, the accumulation of detritus can cause nitrate and phosphates to rise, which can cause algae outbreaks in aquariums where there was previously none.&lt;br /&gt;
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If the detritus levels are left unchecked, the nitrogen waste can also become so high that it eventually becomes lethal to the aquatic life.</description>
<category>Science</category>
<guid isPermaLink="true">https://answerpail.com/index.php/713/what-is-the-meaning-of-detritus?show=1022#a1022</guid>
<pubDate>Tue, 19 May 2026 03:24:13 +0000</pubDate>
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