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Discussion forum => Legacy => Archives => General Discussion => Topic started by: Wyboth on February 01, 2013, 03:52:36 am

Title: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 01, 2013, 03:52:36 am
[deleted]
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: caseyboy123 on February 01, 2013, 06:26:31 am
What did I just read
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Xeadin on February 01, 2013, 06:44:23 am
I haven't read it all yet, but...

(click to show/hide)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: clawstrider on February 01, 2013, 08:09:06 am
Larger muscles on earth than MC
Cuboid bodies could reflect on that fact.
Could also be why it is easier to pick up blocks (all 27*64 of them).
This could also be why it is easier to destroy blocks, due to a smaller gravitational force holding them together and in place.

Also, did you look into air resistance? It could well be different.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: 360OLLIE on February 01, 2013, 11:32:44 am
Most interesting experiment ever. Jeez! (You must be good at math!)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 01, 2013, 12:04:55 pm
[deleted]
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 01, 2013, 12:47:56 pm
I didnt read every single word, but i understand the experiment. Wow its good lol. But i think having a block flow on water and fall, and a narble or something falling too would be better than a dispenser.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: theacp127 on February 01, 2013, 01:21:57 pm
I liked that experiment. Could this be the reason that blocks can float in minecraft...   :P
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: clawstrider on February 01, 2013, 04:51:34 pm
Larger muscles on earth than MC
Cuboid bodies could reflect on that fact.
Could also be why it is easier to pick up blocks (all 27*64 of them).
This could also be why it is easier to destroy blocks, due to a smaller gravitational force holding them together and in place.

Also, did you look into air resistance? It could well be different.

It could be part of the cause of cuboid bodies, but that will require more research.

I don't think it would explain why the player can carry so many blocks, since smaller gravity plus smaller muscles still means that you could carry about the same amount of mass.

This also could explain why it is easier to destroy blocks, but it would only explain a small part of it because the force is 73% of ours.

Also, atmosphere depends on things other than gravity. Take Venus for example. It has nearly the same mass as Earth, but it has 95 times the atmospheric pressure of Earth. I would need other information to determine atmospheric pressure on the ME.

Thank you for the speculation, I appreciate it.

Most interesting experiment ever. Jeez! (You must be good at math!)

Haha, I'm not in Pre-Calculus and AP Physics for nothing. Glad you liked it!

Ofc about the more research, I was just throwing guesses about.

It could be that we have the same size muscles as on MC; the two guesses aren't related.

27% is a decent amount though.

I didn't mean pess gravity = less atmosphere , I meant falling speeds could be changed by atmosphere density, right?
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 01, 2013, 09:12:43 pm
[deleted]
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: kagarium on February 01, 2013, 11:58:43 pm
i have only one response to this:

(https://www.opticraft.net/proxy.php?request=http%3A%2F%2F1.bp.blogspot.com%2F-C5xbRYHUS8s%2FUL60wvTS2II%2FAAAAAAAAA-4%2FBwSCkIqpfgk%2Fs1600%2Fjackie-chan-wtf-face-i16.jpg&hash=f532d0d6aa5b34df6a71a2aa3f882c4d)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 02, 2013, 12:02:47 am
i have only one response to this:

(https://www.opticraft.net/proxy.php?request=http%3A%2F%2F1.bp.blogspot.com%2F-C5xbRYHUS8s%2FUL60wvTS2II%2FAAAAAAAAA-4%2FBwSCkIqpfgk%2Fs1600%2Fjackie-chan-wtf-face-i16.jpg&hash=f532d0d6aa5b34df6a71a2aa3f882c4d)

I was waiting for that.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: kagarium on February 02, 2013, 12:05:13 am
i have only one response to this:

(https://www.opticraft.net/proxy.php?request=http%3A%2F%2F1.bp.blogspot.com%2F-C5xbRYHUS8s%2FUL60wvTS2II%2FAAAAAAAAA-4%2FBwSCkIqpfgk%2Fs1600%2Fjackie-chan-wtf-face-i16.jpg&hash=f532d0d6aa5b34df6a71a2aa3f882c4d)

I was waiting for that.
you already got it though:
I haven't read it all yet, but...

(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FUlah7.png&hash=948241feeee876ef507cc06148a7c3c4)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 02, 2013, 12:06:14 am
i have only one response to this:

(https://www.opticraft.net/proxy.php?request=http%3A%2F%2F1.bp.blogspot.com%2F-C5xbRYHUS8s%2FUL60wvTS2II%2FAAAAAAAAA-4%2FBwSCkIqpfgk%2Fs1600%2Fjackie-chan-wtf-face-i16.jpg&hash=f532d0d6aa5b34df6a71a2aa3f882c4d)

I was waiting for that.
you already got it though:
I haven't read it all yet, but...

(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FUlah7.png&hash=948241feeee876ef507cc06148a7c3c4)
I meant specifically Jackie Chan, should have clarified.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Mr_Mr_Mr on February 02, 2013, 01:13:04 am
(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.minus.com%2Fi2EAQUnIGLyXD.gif&hash=4eff035c71256d052c0e9e64c8083d7a)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: SonicHogSpeed on February 02, 2013, 01:47:58 am
Welp, that was a brain teaser for me :o I read the entire thing
Quite the calculations you made and went through for this.
Now, make a scientific assumption of how Creative mode work ::)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: kagarium on February 02, 2013, 01:58:10 am
I have an idea:

compare the drop of a certain block from the drop key (q), drop from a despensor, and drop from a dropper (1.5)
then compare that to another certain block
then compare those to real life

(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FEvnIRCy.jpg&hash=578c7752f9a8ecff079d6ae701a81a3c)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 02, 2013, 02:34:53 am
I have an idea:

compare the drop of a certain block from the drop key (q), drop from a despensor, and drop from a dropper (1.5)
then compare that to another certain block
then compare those to real life

(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FEvnIRCy.jpg&hash=578c7752f9a8ecff079d6ae701a81a3c)
It doesn't matter what it's dropped from, or what it is, everything falls at 14.4622 m/s2 in Minecraft. I also made the comparison to real life in the article.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: proush600563 on February 02, 2013, 04:55:46 am
I am amazed lol

Wyboth you are both insane and a genius

Edit : also
(click to show/hide)

It seems there is no wind resistance (or that it is so small it does not effect anything) seeing as every block falls at the same rate.
Wyboth why don't your retry this with sand or gravel blocks and drop them with a piston? Since those blocks actually have "gravity" I think it would be a neat twist to the experiment.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 02, 2013, 06:55:01 pm
[deleted]
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: proush600563 on February 03, 2013, 04:06:25 am
(click to show/hide)

This may explain why Steve is dense lol

And I know if it were earth they would be the same but I was suggesting you do it with sand or gravel because they aren't the only two blocks that have gravity so it was just the thought.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: NotABronie on February 03, 2013, 11:46:16 pm
holy crap Wy this is really cool!!!
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 05, 2013, 11:56:29 am
holy crap Wy this is really cool!!!
Thanks!
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Pensfan121 on February 05, 2013, 12:05:42 pm
I think you just put random numbers in and went to minecraft wiki.......nah I'm joking this is cool
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 05, 2013, 12:09:55 pm
I think you just put random numbers in and went to minecraft wiki.......nah I'm joking this is cool
Haha, thanks. I also posted it on Minecraft Wiki. It's still there, so I take that as an accomplishment.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Morrison1996 on February 05, 2013, 12:33:22 pm
All I can say is wow. You sir have to much time on your hands lol. All games operate on rules (I haven't coded any but I have created some games using different programs.) One of the hardest rules to understand is the gravity rule. You explained it very well. Good job.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 05, 2013, 06:47:06 pm
All I can say is wow. You sir have to much time on your hands lol. All games operate on rules (I haven't coded any but I have created some games using different programs.) One of the hardest rules to understand is the gravity rule. You explained it very well. Good job.
Thank you! I would have just looked inside of the code, but I wanted to emulate real world science. I.E. in real life, you can't look inside the code for the acceleration of gravity.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: zwaan111 on February 05, 2013, 06:55:07 pm
It doesn't matter what it's dropped from, or what it is, everything falls at 14.4622 m/s2 in Minecraft. I also made the comparison to real life in the article.

well, there are objects in minecraft that fall slower than that, like sand and dragon eggs.

nice piece of maths and physics.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 05, 2013, 07:46:54 pm
It doesn't matter what it's dropped from, or what it is, everything falls at 14.4622 m/s2 in Minecraft. I also made the comparison to real life in the article.
well, there are objects in minecraft that fall slower than that, like sand and dragon eggs.

nice piece of maths and physics.
I haven't confirmed that yet, but I will check soon. I can't do it today, though. And thank you.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 05, 2013, 07:59:29 pm
I have 2 parties that helped me. Mojang and Issac Newton.

But really, this is awesome. And do items and gravel/sand/anvils fall the same? Also minecarts on slopes?
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 05, 2013, 08:05:52 pm
I have 2 parties that helped me. Mojang and Issac Newton.

But really, this is awesome. And do items and gravel/sand/anvils fall the same? Also minecarts on slopes?
Thanks, and I will test gravel and anvils tomorrow. Minecart kinematics is a different experiment altogether.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 05, 2013, 09:09:36 pm
I have 2 parties that helped me. Mojang and Issac Newton.

But really, this is awesome. And do items and gravel/sand/anvils fall the same? Also minecarts on slopes?
Thanks, and I will test gravel and anvils tomorrow. Minecart kinematics is a different experiment altogether.
Alright. But you could test momentum by  the carts leaving tracks at different angles/speeds. I do know that carts travel farther while occupied. And maybe see if wind resistance slows down the anvil, or if weight has anything to do with it.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: NotABronie on February 06, 2013, 01:22:57 am
Thanks, and I will test gravel and anvils tomorrow. Minecart kinematics is a different experiment altogether.
No need, sand, enderdragon eggs, gravel, anvils and primed trinitrotoluene at a rate of 16 ms^-2
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: DJAlphaWolf on February 06, 2013, 01:30:11 am
I have 2 parties that helped me. Mojang and Issac Newton.

But really, this is awesome. And do items and gravel/sand/anvils fall the same? Also minecarts on slopes?
Thanks, and I will test gravel and anvils tomorrow. Minecart kinematics is a different experiment altogether.
Alright. But you could test momentum by  the carts leaving tracks at different angles/speeds. I do know that carts travel farther while occupied. And maybe see if wind resistance slows down the anvil, or if weight has anything to do with it.
That would be because they have greater potential energy which is translated into kinetic energy when in motion.

Though what do i know? I took physics freshman year and completely forgot everything i ever learned in that class xD

Btw wyboth.
Haha, thanks. I also posted it on Minecraft Wiki. It's still there, so I take that as an accomplishment.
Can we have a link? I can't find it by searching xD
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 06, 2013, 03:34:08 am
I have 2 parties that helped me. Mojang and Issac Newton.

But really, this is awesome. And do items and gravel/sand/anvils fall the same? Also minecarts on slopes?
Thanks, and I will test gravel and anvils tomorrow. Minecart kinematics is a different experiment altogether.
Alright. But you could test momentum by  the carts leaving tracks at different angles/speeds. I do know that carts travel farther while occupied. And maybe see if wind resistance slows down the anvil, or if weight has anything to do with it.
I can't really test minecarts at different angles, since sloped track is always sloped at 45 degrees. I can do different speeds. First, I'll probably have an occupied cart at the bottom of a slope and an occupied cart at the top of a slope. I'll push the occupied cart off and see what happens when they collide. My hypothesis is that the cart that I pushed will completely stop and the cart at the bottom of the hill will take off with the speed of the other cart before they collided (think Newton's cradle). Different speeds will follow that experiment.

As for anvils, it would be air resistance, not wind resistance. Vanilla Minecraft has no wind. However, it'd be impossible to have a control test, since you can't make a vacuum in Minecraft. Weight has nothing to do with it (think dropping a bowling ball and a tennis ball from a high building, they hit the ground at the same time).
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 06, 2013, 03:38:30 am
Alright. You are awesome.


One other thiing. I saw a video where a skele and spider were in 2 minecarts. They both launched off. They hit eachother and made a spider skele. Are powered rails "that" powerful?
Duh
DUH
DUUUHHH!
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 06, 2013, 03:52:18 am
I have 2 parties that helped me. Mojang and Issac Newton.

But really, this is awesome. And do items and gravel/sand/anvils fall the same? Also minecarts on slopes?
Thanks, and I will test gravel and anvils tomorrow. Minecart kinematics is a different experiment altogether.
Alright. But you could test momentum by  the carts leaving tracks at different angles/speeds. I do know that carts travel farther while occupied. And maybe see if wind resistance slows down the anvil, or if weight has anything to do with it.
That would be because they have greater potential energy which is translated into kinetic energy when in motion.

Though what do i know? I took physics freshman year and completely forgot everything i ever learned in that class xD

Btw wyboth.
Haha, thanks. I also posted it on Minecraft Wiki. It's still there, so I take that as an accomplishment.
Can we have a link? I can't find it by searching xD
Link: http://www.minecraftwiki.net/wiki/The_overworld#Trivia

Also, you could find potential and kinetic energy with these:

PE (potential energy) =mgh, m=mass, g=force of gravity, which is 14.4622 m/s, and h=height, which is how high above the ground the minecart is (1 block = 1 meter).

KE (kinetic energy) = 0.5*mv2, m=mass, and v=velocity. Mass cancels in the 2 equations, assuming you are referring to the same object. Let's say that you dropped a button from a dispenser like I did, with a height of 10 meters. You would do:

PE=gh=14.4622*10=144.622J

Then, when it hits the ground, PE=KE, so

144.622=0.5v2

289.244=v2

v=17 m/s

Although this equation would be more efficient:

vf2=vo2+2ad, where vf is final velocity, vo is initial velocity, a is acceleration, which is 14.4622 m/s2, and d is distance fallen, 10 meters. If we assume that the button started from rest at 10 meters, we can do this:

vf2=02+2*14.4622*10

vf2=289.244

vf=17 m/s

And they're the same answer!
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: NotABronie on February 06, 2013, 04:02:27 am
but i think that the physics listed on the minecraft wiki are a load of crap, its just people dont want to do the math like wyboth did and just gave BS numbers to make people satisfied.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: DJAlphaWolf on February 06, 2013, 05:24:36 am
Awesome. Thanks wy!

The PE and KE equations made sense.



Now is it possible to determine if the planet orbits? I know we are given the length of a minecraft day to a year on the wiki. But how fast does the minecraft earth orbit, if at all?

Can we calculate axial tilt, if any?

Is it possible to translate the intensity of the sunlight equipped with the biome its in, into temperature? I doubt this is possible. But how awesome would it be if we could do it.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: joshskiizz on February 06, 2013, 06:12:00 am
Quote
By learning the characteristics of the ME, we can compare and contrast how life on it compares to Earth.
You did all of this to cc life? Usually I just play Flow Free or go out with friends.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: mcoon1 on February 06, 2013, 07:10:31 am
First off, you can's start assuming that the measured constants of our universe would be the same in the minecraft universe. For instance: g=9.816m/s^2 on earth... but (as you noted) you can't assume that this would be the same on any planet! In the same way, you couldn't assume that G would be the same as in this universe. The reason that we have a value for G in the first place is because we conducted experiments in physics to determine it. You'd have to do the same for the Minecraft universe.

Even if we assume that G is the same in this universe, you have used the wrong equations. For instance, you are using equations for gravity that require the Minecraft earth to be spherical. In reality, you very easily could have used Gaussian physics OR Newtonian physics and advanced calculus to show that the vector for gravity on a (relatively) infinite, flat plane is perpendicular to the surface, downward, and equal to 2*pi*G*p*H, where pi=3.1415..., p is the average density of the the object per unit, and H is the thickness of the object. From this, you would get a very accurate value for g. However, even with this, since the Minecraft world could, in theory, expand infinitely outward, you can't use this value to calculate the mass of ME.

If you ask me, in order for the minecraft universe's physics to make sense, there must be a super dense (probably neutron star material-esk) layer of material a few hundred blocks below the layer of bedrock to account for the gravity. This makes sense, since it's density would make it absorb light, explaining the darkness below the map. Also, it would explain why the player dies when they pass to a certain depth below the map (spagetification).
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 06, 2013, 10:43:38 am
You need to show this to your teachers.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 06, 2013, 12:21:33 pm
Awesome. Thanks wy!

The PE and KE equations made sense.



Now is it possible to determine if the planet orbits? I know we are given the length of a minecraft day to a year on the wiki. But how fast does the minecraft earth orbit, if at all?

Can we calculate axial tilt, if any?

Is it possible to translate the intensity of the sunlight equipped with the biome its in, into temperature? I doubt this is possible. But how awesome would it be if we could do it.
We know the ME orbits its star, but it would be impossible to determine its orbital period. The star has no perigee or apogee, and the ecliptic's altitude does not change. The only conclusions we can draw from this are that the ME's orbit around its star is circular, and that its axis is pendicular to its plane of orbit.

It might be possible to translate luminosity into temperature, but our current laws would not work for this, since they rely on the inverse square law, where in Minecraft light decays linearly.

Mcoon, I will respond to you in a bit. I'm out of time right now.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: mcoon1 on February 06, 2013, 09:09:13 pm
Let me point something else out:

We can calculate the average density of ME using Gausse's laws:

g = (2*pi*G)*p*H    (m/sec^2)
g = (4.19338524e-10) * p * H    (m/sec^2)
g = (4.19338524e-10) * p * (64)    (m/sec^2)
g = (2.68376655e-8) * p    (m/sec^2)
(14.4622)     (m/sec^2)  = (2.68376655e-8) * p      (m/sec^2)

p = 538876974.251    Kg / m^3
p = 538876.974 g / cm^3

This means that, on average, ME has to be 27935.56 times as dense as gold (p = 19.29 g/cm^3).

For estimation purposes, we can guess that the average density of minecraft blocks is arround 2 g/cm^3 (water = 1g/cm^3, dirt = 1.22 g/cm^3, stone (granite) = 2.75 g/cm^c). With this approximation, we are accounting for only 0.0000051032% of what it should be.

This means that there MUST be something located below the bedrock layers from 0-4 that is creating the gravity on ME. As I stated earlier, a layer of superdense material located a hundred blocks below the bottom map-layer would do the trick.

The cool thing to note about this would be that, with such a high mass and density, ME's sun would actually orbit it, much like the ancient astonomers thought about the earth-sun system!
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 06, 2013, 10:41:27 pm
Firstly, I would like to note that the paper has been updated. I had used the distance from the origin to the edge of the world as the radius before. In reality, this is half of the circumference. I have applied these changes. The correct mass is 1.924 * 1025kg. The acceleration was not affected.

Now, I will respond to Mcoon.

First off, you can's start assuming that the measured constants of our universe would be the same in the minecraft universe. For instance: g=9.816m/s^2 on earth... but (as you noted) you can't assume that this would be the same on any planet! In the same way, you couldn't assume that G would be the same as in this universe. The reason that we have a value for G in the first place is because we conducted experiments in physics to determine it. You'd have to do the same for the Minecraft universe.

Even if we assume that G is the same in this universe, you have used the wrong equations. For instance, you are using equations for gravity that require the Minecraft earth to be spherical. In reality, you very easily could have used Gaussian physics OR Newtonian physics and advanced calculus to show that the vector for gravity on a (relatively) infinite, flat plane is perpendicular to the surface, downward, and equal to 2*pi*G*p*H, where pi=3.1415..., p is the average density of the the object per unit, and H is the thickness of the object. From this, you would get a very accurate value for g. However, even with this, since the Minecraft world could, in theory, expand infinitely outward, you can't use this value to calculate the mass of ME.

If you ask me, in order for the minecraft universe's physics to make sense, there must be a super dense (probably neutron star material-esk) layer of material a few hundred blocks below the layer of bedrock to account for the gravity. This makes sense, since it's density would make it absorb light, explaining the darkness below the map. Also, it would explain why the player dies when they pass to a certain depth below the map (spagetification).
You are correct in saying that g differs between planets, as it is dependent on mass and radius. However, in our universe, G is a constant. I see no reason why we shouldn't assume that G is the same in the Minecraft universe, and since we cannot replicate Candevish's experiment, we really have no other choice.

Now, for Gauss's equation. g=2piGpH would give you the density of the ME, not the mass. I was specifically looking for mass. The reason why I didn't use this is because you could not accurately calculate the volume of the ME, since there are varying heights, air pockets in caves, etc. etc. etc. If we did know the exact volume of the ME, we could determine an accurate mass. But, since we lack this number, we cannot use Gauss's law to calculate mass.

The alternative is this (http://possiblywrong.wordpress.com/2011/09/09/if-the-earth-were-a-cube/). However, this is for a planet where it is as tall as it is wide, and a planet where Fg does not always point in the negative y direction. So it would not be accurate for Minecraft either.

Also, I would like to use Gauss's law for Earth.

g=(2*pi*G)pH
9.81=(2*3.141592654*6.67e-11)p*6378100
9.81=0.002672988p
p=3670.05 kg/m3
p=36700.5 g/cm3

By this calculation, the Earth is, on average, 1,902.566 times as dense as gold. Obviously something is wrong here.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: mcoon1 on February 06, 2013, 11:59:06 pm
...Once again... what are you doing?

Quote
Also, I would like to use Gauss's law for Earth.

g=(2*pi*G)pH
9.81=(2*3.141592654*6.67e-11)p*6378100
9.81=0.002672988p
p=3670.05 kg/m3
p=36700.5 g/cm3

By this calculation, the Earth is, on average, 1,902.566 times as dense as gold. Obviously something is wrong here.

This equation only works with an infinite planar region... like ME. The Earth is not an infinite plane, so this would not apply in the way that you tried. You can't just pick random equations and use them.

As for your mass equation... it doesn't work. Even a little. Even though you get an answer, it is the result of a misapplication of an incorrect formula. Gausse's law DOES work here for calculating the density of the MC earth, which you would then multiply by it's volume (easily determinable to get it's mass). I was showing that something is OBVIOUSLY going on that we can't see, since the density is so much greater than what we observe.

That is how science works... not random application of formulas.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: CookieMaster on February 07, 2013, 03:54:00 am
ok. so what i learned us ..... potatoes a mamals
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 07, 2013, 04:42:15 am
...Once again... what are you doing?

Quote
Also, I would like to use Gauss's law for Earth.

g=(2*pi*G)pH
9.81=(2*3.141592654*6.67e-11)p*6378100
9.81=0.002672988p
p=3670.05 kg/m3
p=36700.5 g/cm3

By this calculation, the Earth is, on average, 1,902.566 times as dense as gold. Obviously something is wrong here.

This equation only works with an infinite planar region... like ME. The Earth is not an infinite plane, so this would not apply in the way that you tried. You can't just pick random equations and use them.

As for your mass equation... it doesn't work. Even a little. Even though you get an answer, it is the result of a misapplication of an incorrect formula. Gausse's law DOES work here for calculating the density of the MC earth, which you would then multiply by it's volume (easily determinable to get it's mass). I was showing that something is OBVIOUSLY going on that we can't see, since the density is so much greater than what we observe.

That is how science works... not random application of formulas.
I did a bit of research on Gauss's law. I found a video stating that it was g*A=4*pi*G*M, where g= gravitational acceleration, A=Area, G=Gravitational constant, and M=mass. Using this equation, I found M=1.553 * 1025 kg. This wasn't exactly what you had posted, however, so I will wait for your approval of this. The mass I found with Newton's law was 1.924 * 1025 kg, not too far off from what Gauss's law states. Assuming this new value is accurate, my percent error was 23.89%.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 07, 2013, 11:51:04 am
I have done a little bit of Minecart kinematics. I have determined that their collisions are inelastic, contrary to my hypothesis. I will do further research this afternoon.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Booorad on February 07, 2013, 03:18:41 pm
Booorad Logic
(click to show/hide)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: mcoon1 on February 08, 2013, 08:34:09 am
Can you post a link to the video that you watched? I want to put it in context for myself.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 08, 2013, 12:37:17 pm
Sure, here it is: http://youtu.be/hGT2jf4P38o

The beginning is a bit wooey, but it gets to the law at 2:41.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 11, 2013, 03:08:01 am
*bump*
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: iGenerator on February 11, 2013, 05:32:05 am
*rocks in a corner* Make it stop!
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 11, 2013, 07:44:24 pm
*rocks in a corner* Make it stop!
What?
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 11, 2013, 11:33:52 pm
*rocks in a corner* Make it stop!
What?
I dont believe iGen understands physics, so he is trying to stop the brain hurt
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 12, 2013, 01:50:35 am
*rocks in a corner* Make it stop!
What?
I dont believe iGen understands physics, so he is trying to stop the brain hurt
Ok, I thought it had something to do with the bump.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 12, 2013, 03:47:59 am
*rocks in a corner* Make it stop!
What?
I dont believe iGen understands physics, so he is trying to stop the brain hurt
Ok, I thought it had something to do with the bump.
nah, thats fine.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 13, 2013, 10:07:19 pm
Mcoon1, are you going to respond?
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 17, 2013, 09:28:47 pm
I uploaded Minecart Kinematics and this article to Minecraft Forums and Reddit. Check them out:

http://www.minecraftforum.net/topic/1685915-minecraft-science-mass-of-the-minecraft-earth/

http://www.minecraftforum.net/topic/1687211-minecraft-science-minecart-kinematics/

http://www.reddit.com/r/Minecraft/comments/18bt4c/minecraft_science_mass_of_the_minecraft_earth/

http://www.reddit.com/r/Minecraft/comments/18gx2u/minecraft_science_minecart_kinematics/
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Terrewee on February 17, 2013, 09:43:47 pm
(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fsphotos-b.ak.fbcdn.net%2Fhphotos-ak-prn1%2F549382_392704410826548_1199223506_n.jpg&hash=b5831ac429d3005ac5cc13483fdffce7)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 17, 2013, 09:57:56 pm
(click to show/hide)
I'm guessing this is happening?
(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2F88ZoxeV.png&hash=f34c00952ecae217ae5e6024e384503b)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 18, 2013, 01:29:51 pm
I uploaded Minecart Kinematics and this article to Minecraft Forums and Reddit. Check them out:

http://www.minecraftforum.net/topic/1685915-minecraft-science-mass-of-the-minecraft-earth/

http://www.minecraftforum.net/topic/1687211-minecraft-science-minecart-kinematics/

http://www.reddit.com/r/Minecraft/comments/18bt4c/minecraft_science_mass_of_the_minecraft_earth/

http://www.reddit.com/r/Minecraft/comments/18gx2u/minecraft_science_minecart_kinematics/
Read through your comments on the 2nd link. Find the most efficient TnT cannon.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: kagarium on February 18, 2013, 02:03:05 pm
(click to show/hide)
I'm guessing this is happening?
(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2F88ZoxeV.png&hash=f34c00952ecae217ae5e6024e384503b)
yes

yes it is
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 18, 2013, 03:39:22 pm
(click to show/hide)
I'm guessing this is happening?
(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2F88ZoxeV.png&hash=f34c00952ecae217ae5e6024e384503b)
yes

yes it is

I have a feeling that if I tried to explain, I would make things more confusing.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Terrewee on February 18, 2013, 03:50:05 pm
(click to show/hide)
I'm guessing this is happening?
(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2F88ZoxeV.png&hash=f34c00952ecae217ae5e6024e384503b)
yes

yes it is

I have a feeling that if I tried to explain, I would make things more confusing.

oh no I do understand it, but I just don't get 'why'
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 18, 2013, 10:37:15 pm
(click to show/hide)
I'm guessing this is happening?
(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2F88ZoxeV.png&hash=f34c00952ecae217ae5e6024e384503b)
yes

yes it is

I have a feeling that if I tried to explain, I would make things more confusing.

oh no I do understand it, but I just don't get 'why'

Here's a comment I received on the X-post of Minecart Kinematics on Minecraft Forum. I believe it will answer your question.

(click to show/hide)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: zxSM1FFYzx on February 20, 2013, 10:51:02 pm
-_- WTF
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 21, 2013, 01:51:51 am
Why don't you guys understand it? It's pretty simple.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: proush600563 on February 21, 2013, 04:22:08 am
Wyboth I read some of your replies on the forum and I feel like you get much better (and more kind) feedback on the opti forum haha

I like these though so keep em coming
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 21, 2013, 11:56:01 am
Wyboth I read some of your replies on the forum and I feel like you get much better (and more kind) feedback on the opti forum haha

I like these though so keep em coming
Thanks, I probably do. I've decided to wait for 1.5 to do my redstone article, so next I'll be doing stuff with TNT.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 22, 2013, 12:13:57 pm
Wyboth i read that comment before you posted it here. In so hip.
Also: i gave you your hundreth internet. *dances*
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 22, 2013, 08:01:17 pm
Wyboth, I read that comment before you posted it here. I'm so hip.
Also, I gave you your hundredth internet. *dances*
(https://www.opticraft.net/proxy.php?request=http%3A%2F%2Ftroll-face.ru%2Fstatic%2Fimages%2Ffreddie-mercury-pic.jpg&hash=9789dfdd1c225d21015571ef3c33734c)
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: RuthlessTomato on February 22, 2013, 11:32:10 pm
Lol. And when will the tnt 1 be out?
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 23, 2013, 12:48:05 am
Lol. And when will the tnt 1 be out?
I guess I'll do it tonight.
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: CookieMaster on February 23, 2013, 01:49:07 am
wtf did i just read ???
Title: Re: Minecraft Science: Mass of the Minecraft Earth
Post by: Wyboth on February 23, 2013, 07:18:27 am
Hey there, all you Minecraft Science enthusiasts! I have just stayed up half the night to bring you: Minecraft Science: TNT Kinematics! Yes, that's right, the topic you've all been waiting for, the one where we get to make things go boom! Let me tell you, this one wasn't easy to make, so if you enjoyed it, go ahead and slap that internetometer button right in the face! And maybe me too, just so I don't fall asleep while writing this comment. Here's your long-awaited link: http://www.opticraft.net/index.php/topic,16706.msg158927.html#msg158927 Enjoy yourselves, and stay analytic!