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Author Topic: Is the Earth getting heavier?  (Read 4813 times)

Offline thedoc

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Is the Earth getting heavier?
« on: 22/09/2013 16:43:33 »
Is the Earth getting heavier? As the human population grows, are we putting on weight as a planet?

Asked by David Hubble, US


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« Last Edit: 22/09/2013 16:43:33 by _system »


 

Offline Don_1

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Is the Earth getting heavier?
« Reply #1 on: 02/10/2008 13:55:34 »
No. Matter can neither be created nor destroyed.

Each individual must consume food & water in order to grow. What we eat is either used for the growth of our bodies, energy to power them, then passed out as waste or passed straight through as waste. The total weight of our bodies cannot exceed that which we put in.
 

blakestyger

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Is the Earth getting heavier?
« Reply #2 on: 02/10/2008 14:06:11 »
Don_1 is spot on but you could argue that if the loss of atmosphere to space has stopped then the Earth is getting imperceptibly heavier with the arrival of meteorites and other interstellar stuff that lands here.
 

Offline Don_1

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Is the Earth getting heavier?
« Reply #3 on: 02/10/2008 14:25:19 »
Yes, you could take the weight of such interstellar bodies and subtract the weight of space probes sent out by man, never to return, to arrive at a figure. But as you say it would be so infinitesimal by comparison to the weight of the planet as to be as to be imperceivable.
 

Philip Feeley

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« Reply #4 on: 30/12/2013 08:13:12 »
Don't the plants add mass from sunlight?
 

Philip Feeley

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« Reply #5 on: 30/12/2013 08:13:14 »
Don't the plants add mass from sunlight?
 

phaz

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« Reply #6 on: 03/10/2015 16:11:02 »
Sun light and photosynthesis. A plant will not grow without it. Energy added  E=MC˛ end of story!
We have been hit with photons for billions of years which are a part of an atom and has mass. How much energy has hit the planet over billions of years?
 

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« Reply #7 on: 12/10/2015 18:35:54 »

 

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