Post: Dose the Earth weigh more Now or when it was first Created?
01-05-2011, 05:52 AM #1
Shadow_Killer
UnderCover Adrninistrator
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Shepleklet
01-12-2011, 03:02 AM #29
xXHardyKingXx
Sly Cooper 4 coming soon!
Originally posted by E0000B6FAF25838 View Post
READ! The law of conservation of mass states that matter is neither made nor destroyed, meaning, in a closed system, no additional mass can be created. Which in turn means that in and of itself, humanity can have no bearing on the weight of the earth.

---------- Post added at 07:59 PM ---------- Previous post was at 07:35 PM ----------

Wait, I just realized, this is a trick question...

The earth can't "weigh" more or less, because the earth can't "weigh" at all. It's weight is 0. By definition, an object's weight is the mass of an object multiplied by the acceleration it's experiencing. (w=ma) So, we would be taking an object's mass times the acceleration of gravity on earth. However, the earth has gravity acting upon it in all directions (which is the gravity we've come to know and love) and therefore cannot accelerate, meaning it's acceleration is 0. Anything times 0 = 0 meaning that earth's weight is 0.

tl;dr: semantics, condescending explanation, Earth has no weight


Ignoring the law of conservation of mass, think for a minute. Let's say you have a man and a woman, man is 185 lbs, woman is 132. They have a child. The child is born in at 7 pounds. The world just gained an extra 7 pounds, because the child was created.

However, I do like how you took the angle of gravity into the effect of weight.
01-12-2011, 03:42 AM #30
E0000B6FAF25838
Nikolai Reznov
Originally posted by xXHardyKingXx View Post
Ignoring the law of conservation of mass, think for a minute. Let's say you have a man and a woman, man is 185 lbs, woman is 132. They have a child. The child is born in at 7 pounds. The world just gained an extra 7 pounds, because the child was created.


:wtf:

What do you think happens during 9 months of pregnancy? A baby magically forms in a closed off system by creating mass? No. In short (for what is applicable here) the mother increases her amount of food consumed in order to provide additional sustenance for her offspring. Meaning: She eats food, she gets nutrients, then baby gets nutrients, then baby grows (over time of course). The matter that the baby is made up of comes from the mother. Not from no where. The womb is not a portal to another dimension, no matter what they taught you in health class.
01-12-2011, 06:25 AM #31
King_Cobra11
Do a barrel roll!
Humanity has no bearing on this as the mass humans are made up can't just be created as mass is a constant it can not be created nor destroyed (Well there is one way-read the end of my post).
So only with the loss of gases due to the destruction of the ozone layer (ozone being O[3]) part of the outer atmosphere, has there been a loss to the earths mass.
Also there is the very minute value of man made structures being sent into space.
Next there is the issue of when the water came? there is no proof of this only theories with the most recognised theory being that Earth did not have water present in the beginning it came sometime in the 1st 5 million years.
Next the point of the space matter constantly hitting earth which in my opinion would counter-act my 2nd and 3rd points.
Lastly the point on mass/matter being a constant; matter can be destroyed but only when it comes into direct contact with anti-matter which result in total annhilation. And as scientists believe that the only time there has been anti-matter present in our solar system is during 'the big bang' so there evidently has been no mass lost to total annhilation. So in conclusion this arguement is heavily one sided and i would say the Earth now ways more.

If you read all of this thanks because i spent the time to write it.
01-13-2011, 12:26 AM #32
Shadow_Killer
UnderCover Adrninistrator
Originally posted by elfmotat View Post
Do you honestly think that the materials humans are made of magically appear every time someone is born?


The sperm finds its way into the seed, then wait 9 months and you will see a child..

When did i say that the materials we are made of magically appear when we are born?

---------- Post added at 04:26 PM ---------- Previous post was at 04:23 PM ----------

Originally posted by Amon
HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAAAAAAAA.

Are you ****ing serious, anyone that uses that argument needs a slap and an education.


lol i know thats why i said "Some people think that.." ask around i yo will hear that answer.lol

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Shepleklet
01-13-2011, 12:29 AM #33
It weighs the same. You cannot create or destroy matter or energy, so the weight of the Earth will be the same today and the same 4.5 billion years ago.
01-13-2011, 03:02 AM #34
drunkenrepublicn
NGU Retired Staff
It does in America with all us fat ass' walking around! lol
01-13-2011, 03:11 AM #35
Hard to tell.
01-13-2011, 11:16 PM #36
elfmotat
Rᵤᵥ - ½gᵤᵥR ∝ Tᵤᵥ
Originally posted by Killer View Post
The sperm finds its way into the seed, then wait 9 months and you will see a child..


This has what to do with what?

Originally posted by Killer View Post
When did i say that the materials we are made of magically appear when we are born?


"You would have to remember that when humans live they are at regular 130-230 Lbs Regularly and when they Die their Bodies Decompose, so there body is just bones with no meat on it and the bones probably weigh around 10lbs in all. We have millions of people being born everyday and at the same dieing everyday"

You are inferring that humans leave behind ~10 lbs of bone when they die. Where did the materials that form the bone come from? You seem to be suggesting that they appear out of thin air when children are created.

---------- Post added at 06:16 PM ---------- Previous post was at 05:32 PM ----------

Alright people, I've been too lazy to give a thorough answer as of yet, but here you go:


The first thing I have to address is the nature of the question. When someone asks for the "weight" of an object we have to know 3 different values to give an answer. We need to have a larger mass generating a gravitational field with which to compare the mass of the Earth and the distance between their centers of mass.

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I am therefore assuming that the OP meant to say the mass (amount of matter) of the Earth when he posted the question.


As many of you have said, matter cannot be created or destroyed. Most of the matter on and in Earth today is the same matter that was on or in Earth a billion years ago. It is constantly changing, being transformed, and otherwise altered, however the net amount remains the same. What most of you seem to be forgetting, however, is that the Earth is bombarded by debris and energy (from the sun and otherwise which has a small mass equivalent E=mc²) from space that the Earth retains. When compared to the energy emitted by the Earth and the matter sent out into space, the latter is obviously minuscule. I therefore have no doubt in mind that the Earth contains more mass, and therefore would "weigh" more today when compared to a massive object like the sun than it did when the modern Earth was first formed.

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Shadow_Killer
01-15-2011, 09:10 PM #37
the stuff
League Champion
I would say it weighs more. Lets put it at the beginning of this newly formed planetesimal. That was the start. Technically our moon is part of our Earth, that once collided against another planetesimal/asteroid. So when is the starting point here? Many Meteorites have struck Earth, including one that was more than a football field in length, so technically that's more mass to be accounted for.

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