Jump!!!

[Carfanman]

http://www.worldjumpday.org/ :rofl::rofl:

[Foz]

How about fart day and everyone does it at the same time. We don't need no bloody ozone.

[BerserkerCatSplat]

Let's assume that each person jumping has an average mass of 70kg, and can jump an average of 0.5m.

The kinetic energy transferred to the earth's crust by each person is Ke=mgh

Ke = (70kg)(9.81m/s^2)(0.5m)

Ke= 343.35 J per person.

Ke(total) = (343.35)(7,000,000,000)

Ke(total) = 2.40345 x 10^12 J total

The crust of the Earth makes up a mere 0.374% of its total mass.
The mass of Earth is 5.9742 × 10^24kg.

Thus, m(crust) = (5.9742 × 10^24)(0.00374)

m(crust) = 2.234 x 10^22 kg


To create earthquake-like effects, we'd have to cause the earth's crust to flex (thus creating the earthquake-like waves). A medium-sized earthquake would have a surface wave height of approx. 10cm. Thus, to get earthquake-like results, we have to generate earthquake-like energy. To counteract the crust's potential energy and cause that 0.1m change, we need to calculate the potential energy of the crust.

Kp = [m(crust)](g)(d)

Kp = (2.234 x 10^22 kg)(9.81 m/s^2)(0.1m)

Kp = 2.192 x 10^22 J


Therefore, the energy needed to create surface waves, divided by the energy exerted on the earth's crust by jumping everyone is:

Kp = 21920000000000000000000 J
/ Ke = 2403000000000 J
---------------------------------------------
= 9121930920


We would need 9.12 trillion times more people jumping to cause that effect. Human beings just don't have enough mass, nor can they jump high enough, to cause earthquakes!

[01RedDX]

.

[gpomp]

Originally posted by BerserkerCatSplat
Let's assume that each person jumping has an average mass of 70kg, and can jump an average of 0.5m.

The kinetic energy transferred to the earth's crust by each person is Ke=mgh

Ke = (70kg)(9.81m/s^2)(0.5m)

Ke= 343.35 J per person.

Ke(total) = (343.35)(7,000,000,000)

Ke(total) = 2.40345 x 10^12 J total

The crust of the Earth makes up a mere 0.374% of its total mass.
The mass of Earth is 5.9742 × 10^24kg.

Thus, m(crust) = (5.9742 × 10^24)(0.00374)

m(crust) = 2.234 x 10^22 kg


To create earthquake-like effects, we'd have to cause the earth's crust to flex (thus creating the earthquake-like waves). A medium-sized earthquake would have a surface wave height of approx. 10cm. Thus, to get earthquake-like results, we have to generate earthquake-like energy. To counteract the crust's potential energy and cause that 0.1m change, we need to calculate the potential energy of the crust.

Kp = [m(crust)](g)(d)

Kp = (2.234 x 10^22 kg)(9.81 m/s^2)(0.1m)

Kp = 2.192 x 10^22 J


Therefore, the energy needed to create surface waves, divided by the energy exerted on the earth's crust by jumping everyone is:

Kp = 21920000000000000000000 J
/ Ke = 2403000000000 J
---------------------------------------------
= 9121930920


We would need 9.12 trillion times more people jumping to cause that effect. Human beings just don't have enough mass, nor can they jump high enough, to cause earthquakes!
i think that's too much math for carfanman

[Vagabond142]

Bloody engineers (Splatman) ;)

[Newk]

Originally posted by 01RedDX
^^^^^Can you write a formula for fart day?^^^^^^









:rofl: :rofl:

[Carfanman]

Originally posted by gpomp

i think that's too much math for carfanman

HAHA, I bet that was too much math for most people. At least half the readers of this thread probably skimmed it and decided it was too hard to even bother figuring out. At least I read it a couple of times, and though I'll admit its complicated, and I didn't fully understand it all, I at least got the gist of it.
He was basically figuring out what the density of the electric current produced by EACH person is, and multiplying it by the approximate amount of people in the world. Then he figured out what the amount of resistance the earth would be giving, and concluded that the resistance is too great for mankind to move 0.1m, and told us how many more people we would need to move the earth 0.1m. I also followed how he got to each number although I admit some parts did confuse me.

He forgot one thing though.
He forgot to factor in the amount of people who would read that site, and then how many people out of that would give enough of a shit to do it. So really we will only have about 5 people jumping, not 7 billion:rofl:

He basically did a lot of advanced algebra. I love looking at things like this!

[izzoblitzo]

So if half a million people jumped on this half the planet, and half a million people jumped in asia, would the world implode?:D

[BerserkerCatSplat]

Originally posted by 01RedDX
^^^^^Can you write a formula for fart day?^^^^^^



There's less solid nembers involved with flatulence, but I'm really bored and I'll see what I can do. :D

The average person gives off 0.5L of anal gas per day. It's tough to measure flatus volume, but research indicates the true figure is around this volume.

Now, to make Fart Day more flatulent than normal days, let's pretend that the world's population consumed the world's bean supply and thus tripled their daily flatus volume - that is to say, they tripled their fart capacity.

So, now our average volume is a whopping 1.5 litres of ass gas.

Now, farts themselves are minmally harmful to the environment in their natural state, since they are primarily made up of nitrogen, hydrogen, and in 1/3 of the population, methane. That's right, only 1/3 of the population actually give off methane. The other 2/3 will have to be content in the fact they can't actually harm the ozone layer.

So, for the sake of discussion, we'll assume that that 1/3 of the population give off farts that are 100% pure methane, since I can't track down concrete info on the composition of methane-based farts.

So, 1/3 of 7 billion people at 1.5L of methane:

Volume (MethaneHuman)

vol(Mh)= (7,000,000,000)(1/3)(1.5)

vol(Mh) = 3,500,000,000

Wow! 3 and a half billion litres of methane! Goodbye ozone layer!


...well, not exactly.


There are 1.4 billion cows on the planet Earth, and each one of them gives off an average of 500 litres of methane per day.

Volume (MethaneCow)

vol(Mc) = (1,400,000,000)(500)

vol(Mc) = 700,000,000,000

Yegads! That's seven hundred billion litres of methane!

But that's not all! Cows account for only 14% of global daily methane emissions!

Volume (MethaneTotal)

vol(Mtot) = (700,000,000,000)(100/14)

vol(Mtot) = (5,000,000,000,000)

That's five trillion litres of methane every day, on a global scale.

Now, how much of that would our farting people make up?

vol(Mh)/vol(Mtot)

(3,500,000,000)/(5,000,000,000,000)

= 0.0007

Our methane-producing people would only give off 0.07% of the world's total methane output, a figure far too small to affect the ozone layer or global warming in any significant manner. :D


:poosie:

[Foz]

I nominate BerserkerCatSplat for Nobel Peace Prize Award!!

<phrratttttt> crap, I just let one go..


:clap: :thumbsup:

[Newk]

Originally posted by Foz
I nominate BerserkerCatSplat for Nobel Peace Prize Award!!

&lt;phrratttttt&gt; crap, I just let one go..


:clap: :thumbsup:

Damn, now we have to start all over again.

[BerserkerCatSplat]

Originally posted by Foz


&lt;phrratttttt&gt; crap, I just let one go..

:clap: :thumbsup:


3,500,000,001.5 litres and counting... ;)

[Carfanman]

Originally posted by BerserkerCatSplat


There's less solid nembers involved with flatulence, but I'm really bored and I'll see what I can do. :D

The average person gives off 0.5L of anal gas per day. It's tough to measure flatus volume, but research indicates the true figure is around this volume.

Now, to make Fart Day more flatulent than normal days, let's pretend that the world's population consumed the world's bean supply and thus tripled their daily flatus volume - that is to say, they tripled their fart capacity.

So, now our average volume is a whopping 1.5 litres of ass gas.

Now, farts themselves are minmally harmful to the environment in their natural state, since they are primarily made up of nitrogen, hydrogen, and in 1/3 of the population, methane. That's right, only 1/3 of the population actually give off methane. The other 2/3 will have to be content in the fact they can't actually harm the ozone layer.

So, for the sake of discussion, we'll assume that that 1/3 of the population give off farts that are 100% pure methane, since I can't track down concrete info on the composition of methane-based farts.

So, 1/3 of 7 billion people at 1.5L of methane:

Volume (MethaneHuman)

vol(Mh)= (7,000,000,000)(1/3)(1.5)

vol(Mh) = 3,500,000,000

Wow! 3 and a half billion litres of methane! Goodbye ozone layer!


...well, not exactly.


There are 1.4 billion cows on the planet Earth, and each one of them gives off an average of 500 litres of methane per day.

Volume (MethaneCow)

vol(Mc) = (1,400,000,000)(500)

vol(Mc) = 700,000,000,000

Yegads! That's seven hundred billion litres of methane!

But that's not all! Cows account for only 14% of global daily methane emissions!

Volume (MethaneTotal)

vol(Mtot) = (700,000,000,000)(100/14)

vol(Mtot) = (5,000,000,000,000)

That's five trillion litres of methane every day, on a global scale.

Now, how much of that would our farting people make up?

vol(Mh)/vol(Mtot)

(3,500,000,000)/(5,000,000,000,000)

= 0.0007

Our methane-producing people would only give off 0.07% of the world's total methane output, a figure far too small to affect the ozone layer or global warming in any significant manner. :D


:poosie:

haha, where did you get those figures?

i.e., .5 liters per person, approx. 1/3 people produce methane, if everyone ate the worlds beans, that would specifically TRIPLE out gas output, the amount of cows, the amount of methane they produce, cows=14 percent of daily emissions ect.

[Goblin]

This math is not hard, its maybe physics 30? Not hard.

Potential, Kenetic, Elastic, engery etc.

Good work tho catspalt.

I knew this stupid jump day would not work, and you said to "produce earthquake type effects", uhh. we need a lot more than eartquake type effects to change orbit. lol

[Phy]

Originally posted by Carfanman


haha, where did you get those figures?

i.e., .5 liters per person, approx. 1/3 people produce methane, if everyone ate the worlds beans, that would specifically TRIPLE out gas output, the amount of cows, the amount of methane they produce, cows=14 percent of daily emissions ect.

Call it a worst-case estimate?

[BerserkerCatSplat]

Originally posted by Carfanman


haha, where did you get those figures?

i.e., .5 liters per person, approx. 1/3 people produce methane, if everyone ate the worlds beans, that would specifically TRIPLE out gas output, the amount of cows, the amount of methane they produce, cows=14 percent of daily emissions ect.

The only figure I had to guess at for discussion's sake was the bean-tripling figure. The rest were from these two sites:

http://www.heptune.com/farts.html

http://www.timesonline.co.uk/article/0,,2087-1903311,00.html

[Carfanman]

I'd hate to know what you do on the web to find sites like those.;)