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is our planet getting bigger?
coz like you know how when things die there bodies go into the earth? well wouldnt that mean the planet is getting bigger and bigger?
18-21, F
25 replies
Jun 27, 2018
ImperialAerosolKidFromEP · 46-50, M Best Answer
But they come [i]from[/i] the Earth. However, meteors and so on land on the Earth all the time, yet the only materials permanently expelled from the Earth are a handful of probes, so yes, it must be getting bigger
Flenflyys · 26-30, F
I feel stupid for not knowing the answer to this
Lackwittyname · 46-50, M
No just heavier
NorthernRoses · 18-21, F
Nah, because matter doesn't appear all out of nowhere.
Jennifer15 · 18-21, F
[@427579,NorthernRoses] huh?
FordPrefect42 · 46-50, M
Not for that reason as all the things that go into making a baby creature come from the planet already so it's a net sum zero. However the planet is getting heavier due to debris from space falling into the atmosphere. The Earth gains roughly 150,000 tons per year that way.
pentacorn · F
the earth might be getting bigger, but not for that reason.
to get bigger, it would have to be from matter entering our atmosphere from outer space.
Pseudonym · 22-25, M
Well yes, but not because of living bodies adding to the mass of the Earth. Celestial bodies on the other hand, such as comets or asteroids, are gradually increasing the Earth's mass when they collide with it.

Interestingly, the atmosphere is actually losing mass. That is because the lightest elements such as hydrogen or helium are simply more buoyant than the gases that form air. These are being lost to space once they're high enough in the atmosphere.

Overall though, the effect of mass loss is massively outweighed by impact gains, so there is a net gain every year.🤓
SW User
And where did the material that those bodies are made out of come from? (It wasn’t outer space!)
Does a room get smaller every time you paint it 🤔
[@527654,FordPrefect42] technically

.. are you sure.. 🤔
pentacorn · F
[@1060,KingLionHeart] yeah, it does, albeit only a very tiny bit each coat.
FordPrefect42 · 46-50, M
[@1060,KingLionHeart] Yep, unless you're striping the old paint before you repaint it anyway... lol
HoraceGreenley · 56-60, M
No. There is conservation of mass and energy. So the only was to change the mass of the Earth is to bring in objects from outside the atmosphere or remove objects from the planet beyond Earth's orbit.

So as things die and get buried, they eventually get recycled. Remember, any organic material is made from things that already exist on the planet.
HoraceGreenley · 56-60, M
[@6578,HoraceGreenley] And as objects fall to the planet from outside Earth's orbit, i.e., meteorites, the Earth gains mass.
Lackwittyname · 46-50, M
[@6578,HoraceGreenley] What the hell, you’re not answering in meme or joke and providing a best answer
HoraceGreenley · 56-60, M
[@1430,Lackwittyname] Once in a while I will surprise you. I have a degree in Biology, so I am educated in Chemistry and Physics too. So I actually know the answer to this question because it comes up in Physics when discussing Conservation of Mass and Energy.

Thanks for your compliment. I actually paid attention in class

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is our planet getting bigger? | Education | Similar Worlds