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>measure the man beside it as 50 pixels tall, and the cube to be about 250 tall. If the man is 1.6m tall, that makes the cube 8 meters on a side, or 512m cubed.

Oh, no, why am I getting horrible deja vu about measuring in Ryomas?

Fuck yeah.

And this is why I love science.

Carry on, good sir, and know that you are awesome.

SCIENCE

>>2269462

If it is Ryoma, that would explain why Kouji figures its safe to fire the beam anywhere close to him

I want to know the estimated power of the TBR

Movie or TV version, doesn't matter

>>2269492

Hmm...Interesting choice, but difficult to follow through on. Energy calculations work best when we have a material that the energy weapon works on directly, so we can use equations similar to the ones I used with Kaiser up there. But the TBR gets used on Things, rather than materials, making it more difficult to use a simple equation or three.

But consider this: The Colonies in Wing are based on Stanford Toruses, which are supposed to be 1.8 kilometers in diameter minimum. If that's true, I guesstimate the tube of the torus is about 400m wide. This gives the colony an approximate surface area of 4 * pi^2 * 900m * 200m = 7.1 million square meters. Assume the walls of the colony are the equivalent of 10 meter thick iron, then you could have 71 million metres cubed of iron. Now to melt that much iron, you're talking 100,000 times as much energy as I calced for the Fireblaster. I run the figures through my calculator, and I get 91 megatons or so, nearly twice as powerful as the biggest nuke ever set off.

But if anyone uses that figure as the power output of Wing Zero, they are the biggest Heero Wankers known to man. Sure the colony is wrecked afterwards, but it's not like every piece of plating has been melted into those fancy zero-g liquid blobs. That figure is what we call an upper limit: It can't be any higher than that, because we didn't see the colony reduced to blobs.

>>2269817
The movie version, when it hit the bunker, that's a thing. And as far as we saw, it was obliterated

>>2269449
>>2269817

fapfapfapfapfapfapfap.
You sir, are essential to /m/

This thread is why science rocks.

>>2269817
Sciencegar Sciencebolt, a request if I may?

>>2269449
>Also, it takes it only 5 seconds to burn through the cube, so it's got a power output of 768 gigawatts.
Or roughly one billion some HP. You could one-shot a boss with that!

Professor J detected!

Continued

Of course, the main nail in the coffin of anyone trying to convince us that Wing Zero is so powerful it makes nukes obsolete in the ending of Endless Waltz, where the TBR is fired multiple times at the same spot.

The picture shows the final results of 3 shots of the Buster Rifle. It's a pretty impressive explosion. Maybe even nuclear level. But 91 megatons? An explosion that big give would have levelled everything within 30 kilometers of the blast, including the city that the climactic battle had been fought in. And the fact that most of the people inside the targeted bunker are still alive afterward, really puts a damper on that plan.

You have to consider that, once you damage a colony so much, it's going to tear itself apart. The thing weighs 71 million x 7870 = 559 billion tonnes, giving it a moment of inertia of (200^2 + 0.75*900^2)*559B = 3.62x10^17....inertias. It's angular velocity is 1 RPM according to Wikipedia, or 1/9.55 radians/second, so the rotational energy is 1/2*(3.62x10^17)*(1/9.55)^2 = 2x10^15 joules. That's a megaton of energy wrapped up in the spinning of the thing, and that energy has to go somewhere once the buster rifle sets the whole thing off-kilter. Theres a very good argument for the TBR being only a few kilotons in strength max, and the rest of the destruction being nature taking its course.

>>2269900

Er, sure, anonymous with two-zeros-get. What is thine request.

high school level science fuck yeah

>>2270072
Hold on, the TBR has variable output. The thinner beam fired at the bunker was nowhere near the output of the beams fired at colonies, resource satellites and that quarter of Libra.

>>2270072
Fuzzy Memory Nitpick: I thought you need a different formula if you used angular velocity to calculate joules (because units are rad/s instead of m/s)?

Not >>2269900,
but an unusual request of my own. Is it possible to do the Absolute Zero cannon?

>>2270139

You use Moment of inertia instead of mass and angular velocity (rad/s) instead of meters/sec, but the form of the equation is still the same.

Anyone is welcome to double-check my figures. I know I've fucked up before, giving double the right answer for the impact of the zankantou was a big one.

>>2270135

So, you'd make the argument that Heero held back on nuking the shit out of the big bad villain, because of that dull bitch Relena? I'd argue the point, but Heero is so fucking tsundere over that girl that he could do anything.

>>2269817
>>2270072
>>2269449
my god Sciencegar, marry me. I love SCIENCE, but as a biofag can't add for shit. Thanks for doing this

>>2270201
>>So, you'd make the argument that Heero held back on nuking the shit out of the big bad villain, because of that dull bitch Relena? I'd argue the point, but Heero is so fucking tsundere over that girl that he could do anything.

Fuck anything to do with characters, I'm speaking purely from a technical observation that the output of the beam fired at the bunker wasn't anywhere as high as the one that could destroy colonies.

>>2270201
Moment of inertia, right. This does not bode well for the term test...
Also:
>I know I've fucked up before, giving double the right answer for the impact of the zankantou was a big one.
>double the right answer for the impact of the zankantou
>double zankantou
AND THAT IS A FUCK UP HOW?

>>2270201
>>2270262
Also, IIRC Heero was in a semi-non-violent mode there, trying not to lay waste to fucking everyone.
He just wanted to be the little girl. And by be, I mean kill.

>>2270201
Just as a reference to the two previous TBR calculations, would you mind doing the one in the beginning of EW, when Heero fires upon the falling libra block? If the TBR has multiple settings, then this should undoubtably be its highest output.

Wait why is iron the only viable metal around these parts? >_>

>>2270199

I haven't seen G against MG yet, it's on my hard drive I think, but I haven't gotten around to it yet. But a few points:

True Absolute Zero is impossible to get to because of Entropy, which means matter always has a bit of energy and thus always has some temperature. You can cool something down to one degree above Absolute Zero, and it'll have pretty much the same effect on fucking that thing up, but it's not technically absolute zero.

Also, I'd ask how a cannon (something that shoots a thing) can make things cold, cold being the Absence of a thing (energy). At a half-hearted guess, I'd make pretend it's some sort of super-magnetic field, extracting the heat through some method that totally isn't my field of science (but apparently magnetic cooling is a done thing). Of course, to generate that field Kiryu would have to generate many times that much heat, which brings us back to the only-works-once aspect of the cannon.

>>2269449
That's probably even more of an underestimate than you noted, since the beam itself is visible and it's heating the blaster... batsymbol thing on Mazinkaiser.

We're probably talking about a terawatt weapon here. At least. I wish there was more I could contribute but I'm a chemfag with some astrophysics background - I can't remember much of regular physics..

>>2270316
I would assume magnetic cooling works similarly to laser cooling, by resisting particle motion in various directions thus slowing them down. I know laser cooling isn't worth doing unless you're already at liquid helium temperatures (~4 K), and I'd assume magnetic cooling is probably similarly problematic.

An Absolute Zero Cannon could make a bit of sense if you start going to the really fringey hypothetical stuff, specifically negative energy. Obviously we haven't actually ever actually dealt with negative energy, but assuming you could manipulate it (either as an object or fluid with negative temperature or as something like a negative magnetic field) you might be able to leech energy out of whatever it contacts. That's REALLY fringe science though, so it's difficult to discuss even in handwavey arguments.

>>2270293

I'd like to, but I have no fucking idea how big Libra is, never mind that it was only a chunk of it that he had to asplode. At least with the colony, Wikipedia gives me an idea of the expected size of such things.

Explosions don't generally have handy equations to tell you how big they are. There's some equations for nuclear-levelexplosions in atmosphere, but they'll only tell you the size of the fireball and what the kill radius is. And they sure as heck won't work in space. That's why I have to rely on the melting equations, even though the real damage is done in the form of physical stress tearing the metal structure apart.

>>2270305
The main problem with robots and space colonies is that we have no idea what they're made out of, so we have to use modern-day equivalents. Generally, when calculating robot specs, I'll use titanium as a basis, but for bulk construction materials, iron seems like a better choice.

>>2270334

Oh totally, there are a lot of places where I skimped, in the name of getting an elegant equation. The Fire Blaster itself, the air around the target, everything in the over-penetrating beam, they all would add onto the power output of Kaiser to give a full figure, which could be several times what I calced. The same can be said of all my equations: Sometimes my figures are upper limits, but for Kaiser that's a lower limit.

How about measuring the hardiness of Mazkinkaiser's armor on the moh scale

that bloody thing can survive liquid magma

>>2270092
GEAR Fighter Dendoh weighs 399.8t and moves at a speed of 999km/h as it's base stats without any Data Weapons installed (taken from website)

One of it's techniques is Bakusai Chourakka, which is described as using gravity to let it's weight smash against the enemy (that is, usually it hits an enemy with something, jumps into the sky and lands on the enemy with it's leg turbine/s, the latter part being the actual Bakusai Chourakka)

Can you explain the power behind this technique, at different heights?

>>2270461
http://mahq.net/mecha/gundam/w/libra.htm
Libra's stats with overall length of 3500m and height of 1500m. Though to be fair, the TBR only blew up a quarter of the ship with already most of the insides evicerated in the fight between epyon and wing zero, plus having the reactor core detonated.

does anyone have the older sciencegar sciencebolt threads?

>>2270494
Mazinkaiser survived REENTERING THE EARTH AT AN IMPOSSIBLY STEEP ANGLE AND CRASHED STRAIGHT INTO THE GROUND AND DIDN'T HAVE A FUCKING SCRATCH ON ITS PAINT JOB.

>>2270531
If it's purely gravity driven, total impact energy will be 399800*9.8*h, with h being height it's falling from in metres. Assuming it's jumping at 999km/h (277.5 m/s) that would mark the jump's apex at 38,503 m, giving an impact velocity of ~150.9 gigajoules, which comes out to about a thirtieth of a kiloton.

>>2270494
Setting aside that hardness doesn't have anything to do with temperature (and that the magma killed Kouji), it'd probably be an 11. The divisions on the scale are pretty much arbitrary.

>>2269449
Ahem...
NERD
Have fun a college.
If you don't get more than $60000 per year, I'm hunting you down and kicking your ass.
>>2269817
Considering the interior air presure, centrifigal inetia, and the possiblity of combustibles, it wouldn't take much to kill a colony.

The one thing about the Buster cannon\rifle is the focus. The output is due to the spinning plasma in the barrel. It also explains the glow before each firing.
The issue is that I can't figure out what's being shot.
It's not radiation, all you'd get is a thin line of anihilation. It's not plasma, it's to fast and has way too much range.
It's not charged particles, again the range and the fact that it doesn't spread.

The theory is sound, fill a tube with plasma and then bounce electrons through it, The plasma get's polarized and releases the accumulated charge uniformly, more or less.

Gah, should just label it as fiction and leave it.

>>2270551
Plus the other Gundams were doing their best to fuck it up, and didn't Heero just have to hit enough for it to blow up (like a reactor or something)?
Goddamn it, now I want to re-watch Wing.

>>2270593

Well, it could have reach a terminal velocity that is less than the force required to damage the armor and the armor could be uniformly colored to minimzed the appearance of scratches.

I could also impregnate a wolf in order to create lycanthropes.

http://uk.youtube.com/watch?v=vfDSLpi6_vk

Requestin analysis of this particular display of Dekabreak nonsense.

>>2270697
Ok, how about we back right up and try to explain one of the most iconic weapons in Gundam: the Beam Sabre.
How the fuck does it work? You can't just stop a laser.
In the original Gundam, it seemed semi-solid, eg in episode one, a Zaku was suspended in the air, impaled on the blade.
So what is the blade made of, if not energy? Some super-heated material? I don't even want to think of the logistics of that.

I've actually been trying to find this somewhere for a bit, and I'm hoping you might have the answer: you wouldn't know how to calculate the output sustained during reentry, would you?
I'm aware of the different variables (angle, mass, that sort of thing) I'm just really looking for the baseline equation to start from.

>>2270697
it does spread though, or at least has a blast radius greater than the visual beam. Wing Zero's last shot in EW has multiple Serpents exploding even though they don't touch the yellow beam. I believe it happens more than a few times during the series as well.

>>2270494

A) You measure somethings hardness by indenting it with a diamond probe and seeing how hard you have to push to make a mark. It usually involves microscopes and the like. We don't get that kind of extreme closeup for Mazinkaiser.

B) Hardness has nothing to do with surviving Molten lava, that's heat capacity, conduction, and melting point.

Say you've got Kaiser in the lava for an hour, with poor mortal Kouji inside. Wikipedia says he dies once his body temperature reaches 44 celcius, so that's our limit. He counts as a bag of water in thermal terms, so thats only (4.1813 kJ kg−1 K−1)(80kg)(44 - 37 degrees) = 2.34 Megajoules that has to get through the insulation of Mazinkaiser before he's fucked. That's about enough energy to boil a kettle, in practical terms. Say it takes 50 minutes to fix up the Scrander to save him, that's 3000 seconds, and a maximum heat flow rate of 0.78 kj/second. The lava is at least 700 degrees above what Kouji wants to be at. Lets say there's 2 meters between Kouji and the lava, and give kaiser an approximate surface area of 23m tall x 6m thick x 4 sides (very approximate) = 552 meters square. Heat flow is given as k*area*temp. difference/thickness, = k*552*700/2. Thus the conductivity k of Neo Super-alloy Z is 0.78kj/193200 = 0.004 watts/meter-degree.

That's crazy low for a metal. Insane even. Iron pulls around 80, titanium around 20. Concrete hovers around 1, water about 0.6, wood about 0.2. Hell, most gases are about 10 times more conductive than this metal. The only thing on wikipedia's list with this kind of conductivity is the special Aerogel that Nasa puts on it's space probes: Tough stuff, but it's practically see-through, and it's too brittle to make robots out of.

>>2270752
Hmm...IIRC, a beam saber is made out of superheated plasma (is that a redundancy? pardon my ignorance, I suck at science :( ) ensconced within an I-field matrix made out of Minovsky particles or something. The thing about I-fields is that solid objects can pass through them, but I-fields repel other I-fields, which means that you can parry a beam saber attack with another beam saber, or any I-field weapon like a beam trident or whatever.

I know, the science is pretty LOL WUT, but let's face it, consistency was never a trait of UC's minovsky physics.

Why don't we have laser guns yet.

I have a question;
How powerful is the energy produced by the Zeta's biosensor?
For that matter, how would one quantify this phenomenon in any real physical aspect?

The current cannon states it's charged particles in a magnetic envelope.

The solidity of the blade would be due to the magnetic field interacting with metals.

Considering the heat of the weapon, I'f expect some sort of corona created by the extreme tempature.

>>2270731
...He was moving awful slow, for light. Dekabreak shouldn't have had time to activate the attack.
So they weren't literally "moving the speed of light", rather they were boasting, and are capable of very high speeds.
Well, not terribly high, or else the acceleration would fuck up Dekabreak.
tl;dr they were just being awesome.

Calculate the power that the Ideon Sword needed to cut through that planet.

I'm not satisified with IDEON POWER INFINITE as an answer.

>>2270833
Too bulky right now. Plus it sucks if your enemy has a mirror

The simplest way to quantify the toughness of Mazinkaiser from the drop-from-orbit thing is to find the energy it took to get him there, the gravitational potential energy. The earth is 5.9736×10^24 KG, while kaiser is 39000kg. The earth is 6400km in radius, add another 600 for low earth orbit. Thus potential energy from gravity is (6.67x10^-11)(6x10^24)(39000)/7000 = 2.23x10^15 joules - Half a megaton.

The steepness of the re-entry doesn't change this, ir only affects how much of it is frictional re-entry heat and how much is kinetic energy from the impact.

>>2270833
we do, they just suck right now.

First there is the lens. Mostly, it's their to contain the energy of the beam until it's fully charged. Unfortunatly, most lenses are easily scratched and most people don't want to make a lens out of diamond for economic reasons.

Second is power. The current thinking of lazers is to deliver so much energy on target in an instant that thermal expantion causes a small piece of the target to explode. Unfortunately, that take a lot of power at high amplitudes.
This issue comes in two points

A. Carrying sixty shots worth would require a car battery or kilogram hydrogen fuel cell. Carrying sixty rifle rounds would weigh in under half a kilo.

B. Delivering this energy is tough. The higher the amplitude, the more energy is delivered, at the same time, the more the enviroment will effect the beam. Making a laser rifle is child's play. It just doesn't work right in the rain, mist, dust storms, long ranges,or through cover, or through windows at certain angles.

>>2270925
Wouldn't ANY small flaw, scratch, or even dust on the mirror collect the light and heat and break its reflection?

>>2270968
I understand there is a pluming effect, where the light particles are spread out and weakened through the air. Is there any way to fix this, besides chargin up moar lazor?

>>2270980
Well, firing in a vacuum. Except then your laser gun heats up like a bitch (there's nothing in a vacuum, so there's nothing for the heat to flow to)

I'm honestly having fun on this thread.

>>2270950
we don't need nukes, let's just drop giant robots.

>>2270970
You don't even need that. Most mirrors aren't 100 percent eficient (sp?)
Shoot it enough and the mirror will heat up and warp, and not in the FTL way.

Here's a question, why don't we put rail guns on tanks yet?

>>2270833

Because of problems getting the energy right. To kill shit with a laser, you need a certain amount of energy emitted in a very short space of time. You try that with the crystals and semi-conductor lasers in your DVD player, you'll end up with 10 times that amount of energy in waste heat, and the laser will melt. Military lasers work using special chemicals which emit the right kind of energy, but you don't get a lot of efficiency from them. Also, lasers work best when they have big lenses, so a rifle-sized laser, even with the right amount of power, might not have the focus and range you want.

>>2270922

Did that planet actually fly apart, or did they just cut it in two and then let the two halves melt back together? Different equations either way.

>>2270989
So then, what about continuously using a Beam Sabre? Wouldn't the heat be a huge problem?

>>2270997
Nothing we've ever made has been 100% efficient, though mirrors can get VERY close for the particular frequency they're tuned to.

>>2271011
They're expensive, require a shitload of amperage, and they're also fairly bulky compared to conventional weapons. The US Navy does have a ship-based railgun that's in testing at the moment, as a replacement for the ship's main guns. It's supposed to have a range on the order of 150km, which is huge.

>>2271017
Technically speaking, every single spaceborne anything in the vast majority of mecha should have overheated several times over. You need an ungodly amount of radiators or heatsinks to keep military spacecraft from destroying themselves through heat.

>>2271011

Aside from the fact that the tank would be twice the size of normal tanks with the extra equipment, the main reason is that railguns have a tendency to try to rip themselves apart with the massive magnetic forces. The stress from the shots would mean you would have to change barrels every few shots, which ain't a good plan in battle. Also, there's not a terrible advantage for a railgun over normal shells other than range, and that's what artillery and airstrikes are for.

Also, any tank crew with metal fillings would be in a spot of bother.

>>2271013
It was split clean in half. No melting back together.

>>2271017
energy requirements are more of an issue
keeping that kind of device active requires gigajoules.
maybe if we crack cold fusion,but no one has that energy to waste.

since it's external, most of the heat is radiated off.

>>2271025
I've heard of that, kicks rounds out at mach 7.
did they solve the plasma wake issue yet?

This thread

>>2271013
>Did that planet actually fly apart, or did they just cut it in two and then let the two halves melt back together? Different equations either way.
Just checked for you. The halves were flying apart from each other at a rate of approximately 1/24 of the planetary radius per second, each.

>>2271056
Plasma wake was an issue?

I thought it was the best part

>>2271066
Well...
The wake in and of itself is a good thing.

The problem is the fact it forms inside the barrel. This exposes the rails, which have to be in contact with the round, to very hot gasses. the alloys of the rails start rusting.

>>2271065
dayum.
That kind of energy doesn't exist on earth, by rights the earth should have simply shattered from the force exerted.

Somebody repost the Zankantou calculation one, pls? It's just so awesome. ;_;

>>2271089
In other words there's no formulas to calculate it beyond LOL IDEON POWER INFINITE?

Well. shit.

>>2271089
>That kind of energy doesn't exist on earth, by rights the earth should have simply shattered from the force exerted.
My rough math puts the energy of just that seperation velocity at 10^35 joules, which is only a million times less than a fucking supernova. It's an absolutely insane energy level.

>>2271049

Hmm, well, in that case it's better to use gravitational equations.

An earth-size planet has a binding energy, which shows how much gravity holds it together, of 2.4x10^32 Joules. This is gleaned from the equation U = (0.6*Gm^2)/R, where m is mass and R is radius. But after the cutting, we end up with two smaller planets, so what's their binding energy? Their mass is half that of the original planet, and according to my calculator they'll have 0.8 times the radius after they collapse into spheres, so in total they have U = 2*((0.6*G(m/2)^2)/0.8*R) = original U times 2/(4*08) 0.63 the original energy. So, 37% of the original binding energy must have been applied to seperate the two halves, which is 8.9x10^31 joules.

Satisfied?

>>2271117
well...
Yes ad no
I can't say anything about how the planet was split
I CAN give you a formula to figure out the left over energy moving the two halves apart

(Mass of the planet)(planet radius)/24=Force exerted on the two halves of the planet.

If you assume their was a very thin crack going down the planet along the cut, then the formula gives a close aproximation

>>2271144
forget what I said, this is better.

>>2271123
So... just a regular old nova, then? Only the energy of an exploding star?

>>2271099

Saving it seems to have been a good idea.

Holy cow, that was from so long ago...

You know, it figures that Tomino either worked all this out beforehand to make sure there was no way to describe the power other than infinite, or he didn't think it through and it still fucking works out that way.

He's either a genius, or a subconcious genius. Or maybe both.

>>2271123

Really? I thought I saw that clip on youtube, and I recall a lot of slow-mo shots of Buff Clan exploding and poignant shots of the planet with a red ring through, not such a violent tearing apart at astronomical velocities. MY equation above only gives the lower limit, but if such amounts of kinetic energy are involved, then yes, the final answer could be several orders of magnitude higher.

>>2271163
You have to under stand, if we blew up every nuclear warhead ever built during the cold war, we might, MIGHT, cut through the earth's crust.

Ideon wanders around the realm of lesser GODs

>>2271117
No, there is. Assume the ideon hands are roughly, let's say 5 metres across, and that it's vapourizing about that wide a swath of planet. Assuming the planet's roughly Earth-like, that's about 6,400km radius or a slice that ends up being 643 trillion cubic metres of planet. Assuming that's all silicon dioxide (which is moderately accurate) and it's all vapourized, that's 1.4*10^18 kg of SiO2 and roughly ends up at 10^22 joules for just the temperature change. I'd factor in the latent heat of melting and vapourization as well, but it honestly doesn't matter since all this pales in comparison to the kinetic energy of the two planet parts moving away from each other. The vapourization is going to be something like 10^24 or 10^25 J, and the movement is more than a billion times that.

Very roughly, the Ideon swords chopping that planet in half jammed about 10^35 J of energy into it.

>>2271184
Only when Piper Lou is crying. Otherwise it's just a giant red GM.

>>2271163
A supernova is an exploding star. A nova is a star (generally a white dwarf) piling so much hydrogen onto its surface that that hydrogen starts to fuse. It's a much much lower energy level than a supernova.

>>2271174
It is fairly ridiculous. Here's a shot of the planet just after it was split.

and here it is four seconds later. Now that looks to me like roughly a third of a radius between the pieces, putting it at a sixth of a radius per four seconds per piece, or r/24 per second.

Question: What is the estimated power of this laser?

The damn laser penetrates the earth crust from somewhere around Tokyo to Hawaii and kept on going through outer space. Since there's no way to measure its final destination, let's just assume that the laser only reach Hawaii.

since were already discussing planetary bodies being sliced in two, how about nono bisecting titan?

Somebody screencap all the SCIENCE before thread dies of being fat but after it becomes fat from eating all the SCIENCE.

>>2271250
IT EATS CHILDREN. IT'S PRETTY POWERFUL.
>>2271251
Discuss: Buster Machine 3: just how badly could it fuck shit up?

>>2271284
Before

>>2271284
After

discuss

Archive?

Here's a hard one with no similar solid mass to account for:

Power output of Goldion Hammer smashing and obliterating Pisa Sol. Turns a whole planet sized thing into gold light sprinkles.
Was Pisa Sol more star-gasey or solid? I vaguely remember it's surface being honeycomb like, but that was long ago.

>>2271333

Did it before. Take the numbers for gravitational binding energy of the sun, and multiply a few times to take account of the reduction in size when it morphs into Pisa Sol.

What are the main barriers to creating a comparatively portable fission reactor (something which could be moved by 2-3 truck engines working in tandem)? The cooling system, I assume?

>>2271311
Black hole creation?

>>2271398
Go watch Gunbuster right now.
Seriously. Drop everything and do it. Unless you're in public or at work because it's kinda NSFW.
For the first episode, you may think "WTF is this fanservice shit? It's not worth my time."
It's worth your time. Go watch it.

How much energy can this solar system destroying monster output then

>>2271463
All the energy.

>>2271395
They already have portable fission generators that aren't much bigger than a shipping container. If you meant fusion, well, that's a whole different discussion.

>>2271475
My bad, I don't think they're actually available yet. More data here though:
http://www.eurekalert.org/features/doe/2004-07/dlnl-net071204.php

Moving to archive this shit.

>>2271475
>>2271482
Yeah, I didn't mean fusion. I don't understand the mathematical nuances of the problems facing fusion power but from what I've been told, it's due to the heat generated from the reaction melting the actual reactor or something. I asked about fission because I figured that there might be a use for that sort of powerplant in actual warfare (for what, I don't know).

>>2271475
Pardon my ignorance, but about fusion, wasn't there there some scandal about cold fusion a while back? A couple of guys said they discovered it but didn't replicate their findings or something? :-/

Thread saved here:

http://www.megaupload.com/?d=ULY0N0X0

Xboxy screencap and html page. Enjoy.

bump for morning peeps

>>2271499
Seconded

>>2271395
Safety and containment mostly. No one wants nuclear waste all over their country and the crews would be exposed to the reactor daily. If the reactor vessel is breached then the shit has entered the jet turbine.

My english teacher once had the idea to put nuclear reactors in tanks becouse no one would want to blow them up.

Most countries deal with fission with kiddy gloves, and honestly, they should.

>>2272165
Pardon my ignorance (again) but hasn't France had fairly good experiences with nuclear power? More so than America, at least, after that one Three Mile Island thing...

>>2270865
>...He was moving awful slow, for light. Dekabreak shouldn't have had time to activate the attack.
Maybe not only is his fist faster than light, he also activates the attack faster than light.

>>2272233
Didn't they have a reactor cover leak or something about a month ago?

>>2272260
being an american (and therefore fat) I can't say what France is up to. Considering the socialist state, I'm not sure if I want to.

I can say that France pours a lot of money into keeping the reactors safe.

>>2272256

He also apparently stands there at faster than light.

Dekabreak is awesome.

The problem with Fission Reactors isn't that we don't have the technology for them: we get our shit together and we could have hundreds of the things in a decade. The problem is, up until now, no-one but the French wanted to touch fission with a mile-long pole because OMFG TEH CHERNOBYL. Also, hippies.

>>2272657
Mmm. Out of curiosity, though, how efficient would you say the French system is? While I've heard it's excellent in terms of safety due to the government being forthright and actually telling people what they were doing rather than being secretive (according to someone I heard on /m/, at least), I have to wonder if that success story doesn't come with a big price tag...

>>2270833
http://www.irconnect.com/noc/press/pages/news_releases.html?d=154600

got it down to being something a small vehicle can carry, still working on personnel-scale weaponry

>>2270752
The way I've figured it out, as the I-field of a beam sabre is an electromagnetic shield of sorts created to maintain the superheated plasma created by the cap - Is it possible for the I-field to be powerful enough to actually repulse the magnetic coils of a minovsky fusion reactor enough that a mobile suit could be held aloft?

As to the weaknesses of an I-field, I think the main one is it would be useless versus a maser beam or a mere laser as the I-field would not be able to defend versus a focussed photon beam (not sure about a diffusion rate for the plamsa though) and the maser would simply pass through unharmed - although maybe such a beam would be enough to cause a 'leak' in the I-field shell via its energy distorting the I-field shell, the result being a massive plasma leak locallised around the attackers hand?

What about if the iron was coated, say with zinc? Zinc needs to burn first before you can get to the iron

>>2271792
It's kinda the unwanted sibling of most science, a lot of scientists see it as a field full of crackpots.
A lot of scientists have claimed to successfully create a cold fusion reaction, but have had immense difficulty in replicating it, thus leading to the "main" branches of science to not put much stock into that theory.

>>2273632
Ahh, I see. Thanks.

http://adterrasperaspera.com/blog/2006/03/04/evangelions-positron-rifle-and-future-japan

>>2273436

A thin coating won't have any major effect on the calculations. If you're thinking in terms of reflecting some of the energy, we can't calculate that without knowing the reflectivity of the coating, and anyway that would only last a second. If you're plating the iron in another material, well then I'd have to go back to my original calculations, remove a certain volume of iron and replace it with the new stuff, then add the melting energies of the two materials together. More complex, but unlikely to make a big difference.

Remember that the final result is not in question: The cube is melted straight through, the only question is what it's made out of. I assume iron as its the most plentiful of metals and a good benchmark to test the Fire Blaster's power. If you want to assume different materials, you'll get different answers, but I doubt they'd vary by more than an order of magnitude.

>>2273312
Interesting.
But does it make a "pyew pyew pyew" sound?

OK, if this thread is still going on, I'd like to ask the more math-minded (Sciencegar, etc) to help with even rough estimates of ground pressure for any given mech. Some like Macross Valkyries and the 'Flag' type from Gundam 00 (havn't watched it yet) seem to have *really* small surface area for the actual contatc patch on thier feet. I'd think they'd just sink up to the knee if they stood on pretty much anything besides solid metals or reinforced concrete. And I don't even want to think about some of the smaller footed Mortar Headds or Zearth from Bokurano. Yikes!

>>2274113
Yeah, isn't Zearth fucking huge, and has those itty bitty heels? But hey, it eats little kids, it can do whatever the fuck it wants.

SCIENCE thread? Forgetting something?

>>2271234
>>2271242

I must now convert all my units to be described in terms of Zankantous.
4.689x10^12 Joules=1 Zankantou
So 1 Newton=1 Zankantou x 4.689x10^-12 meters
etc.

>>2271792
If we're talking about the same fusion scandal, it wasn't that they couldn't replicate their data, it's that they didn't actually have any. Basically the conversation went:
"Hey, we successfully did some cold fusion."
"Cool, tell us more."
"... no."

>>2272165
Fission reactors are a lot less dangerous than they used to be. The only major problem left with the big industrial ones is that for some stupid reason we aren't reprocessing our nuclear waste. You could get SO much more life out of the fuel that it's absurd that no one built one here. I think there's only a handful in the world (France probably has one). People also bitch about the possibility of another Chernobyl without realising that:
a) Chernobyl ran a really horrible design that's fundamentally different from what sane people use
b) The Russians literally took out most of the failsafes to see what would happen
Hell, if you're running a sensible nuclear reactor there's less radiation waste emitted per unit energy generated than for coal plants.

>>2275568
Yeah, didn't Bush promote Nuclear Waste Transmutation?

>>2271231

>>2275568
When people bitch and say nuclear energy is unsafe, i remind them that we have dozens of subs that run on nuclear energy in an ocean every hippie wants to protect and guess what? Has any melted down yet?

Granted last year, that one sub that patrols Japan was leaking but it only let out enough radiation to amount to a fire detector over how many years its been leaking.

I have a general question. When they say a mech unit is nuclear powered, how exactly do they harness said power? From my understand, nuclear power plants basically use irradiated rods to create steam to move generator turbines. how do you accomplish this in a mobile unit such as a gundam? I can sort of see how it could work on Giant Robo seeing how large he is and all the steam leaking out.

>>2277533
http://www.ultimatemark.com/gundam/power.html

Maybe?

>>2277533
http://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator
Probably.

Oh, and as the tripfag named SCIENCE!, I salute this thread. Good job.

>>2277541
I suppose that satisfies my curiosity.

We already worked out in a past thread that for Ryoma to make it from the gate of the Heien capital to the center in the time he did, he must've been running at 400+ mph.

But how would you analyse the bullshiticity of him and the three kids he was holding surviving this fall even when landing on a car?

Going to do it for the original Gundam.
Looking on MAHQ, I found that the Gundam has a maximum weight of 60 metric tons, or 60000 Kg. That means it exerts a downward force of 588.6 kiloNewtons.
Looking at the image at MAHQ I estimate the Gundam's foot to be two by four meters: it has a surface of eight square meters. When the Gundam is standing on only one foot, therefore, under its foot there's a pressure of 73575 Pascals, not even enough to break through concrete (which can hold up to about 25 MPa if it's well supported, i.e. if the building is well designed).
This applies when the Gundam is standing in place on one foot. For the sake of the argument, let's say that the force is multiplied by ten times whenever the Gundam does any activity (such as walking, running or jumping). This would mean a pressure of 7.35 MPa, not enough to break through concrete, let alone reinforced concrete.

(Yes, I did delete and repost, I noticed I'd fucked up while converting a unit.)

>>2277725
is a reply to
>>2274113

I am so satisfied right now.
Thank you OP.

You know, I've always thought that the Zankantou's power should be more than 1/28 (half previous estimate?) of Hiroshima. DaiZengar would definitely be swinging the sword down somewhat and the sword impacts the enemy before DaiZengar hits the ground, which means that it's weight should be factored in too.

>>2277725
...and I noticed just now that 75 kPa multiplied by 10 isn't 7.5 MPa. This self-sage is well-deserved.

>>2277767

Look on the bright side. Those nutjobs in Japan might actually make one unarmed Gundam to walk in their streets for one day.

So where are my practical laser beams, world?

I think the cube was steel. Why? Because iron is more black, and steel at times does have blueish hue

Remember when Mazinkaiser pulled a sword three times its length from its chest? Yeah.

This thread actually makes me want to learn about SCIENCE

>>2277783
Probably around the first space war. Lazers are death in long range space combat.

BUMP FOR WIN!

>>2277806
Science dude, where are you?

>>2278066

>>2271993 here
Updated saved pages, also contains the caps of GGG power ouput and the definition of 1 Zankantou.
http://www.megaupload.com/?d=4KK4L1LH

Sciencegar mentioned in one of the caps that there are more of his calculations (such as the SRX's Buster Cannon), anyone has them?

>>2278229
>>Updated saved pages, also contains the caps of GGG power ouput
But that's impossible; it goes beyond infinite

>>2278239
It wasn't until Final that they made the bullshit up about it running on courage.

>>2271250
Oh boy, hadn't seen this question. Let's see now...
Shortest distance from Tokyo to Hawaii (Kauai island, the closest to Japan) is about six thousand kilometers, or 0.15 times the Earth's circumference. Using simple geometry we find that the beam cut through about 5780 km of solid matter, reaching a depth of about 700 km below Earth's surface at the deepest point.
The Earth's crust goes down to about 100 km. Again with simple geometry, we find that the beam crosses about 2200 km of crust and 3580 km of mantle.
I'll assume a beam radius of 10 metres. Going with that, it means the beam vaporized 140 million cubic metres of crust and 225 million cubic metres of mantle.
For this discussion I'll assume all the crust is solid at 20°C and all the mantle is liquid at 500°C (if you're unhappy with these assumptions too bad for you, I don't want to do overly complicated calculations). The crust and the mantle are silica (again, I'm assuming 100% silica in composition here -- the reality is quite different, you can find all relevant figures on Wikipedia if you wish): the beam must heat the crust to the melting point of silica, melt it, heat it to the boiling point, and vaporize it. For the mantle it's a bit more simple, the beam only needs to heat the silica to the boiling point and vaporize it (please note: I'm assuming pressure doesn't influence melting and boiling points, again the reality is quite different).

>>2278305

Calculations time!
Silica specific weight: 2.2 kg per cubic metre. It means the beam traverses 308 million kg of silica in the crust and 495 million kg of silica in the mantle.
Silica has a heat capacity of 0.703 kilojoules per kg per kelvin. It melts at 1650°C and boils at 2230°C. This means that, without accounting for melting and evaporation, the beam gives off 352.93 billion kilojoules to heat the crust to the melting point and 125.58 billion kilojoules to heat it after melting to the boiling point, and 602.01 billion kilojoules to heat the mantle to boiling point.
Unfortunately, I've been unable to find data about the melting and vaporization heats of silica, so I'll go with those of silicon. To melt the crust we need another 260 billion kilojoules, and to vaporize everything the beam traverses we need another 4796 billion kilojoules.
Adding everything up we get a figure just shy of 6000 billion kilojoules, or just above a megaton. Also, if the whole shot takes 10 seconds, we have a power output of 600 terawatts, or 600000 gigawatts.

>>2278308
Obviously these figures are the bare minimum, the beam probably has more energy than that, seeing that after it cuts through the planet it strikes the enemy and then flies off into space.

Here is a concept found in a paperback novel.
They called it C-Fire

You take a starship, slap on a really big engine.
Now fill it with sand. (call it 100tons of sand
Point it at a star of someone you hate.
Have it acelerate to near the speed of light (don't think about how it's done, it doesn't make sense)
Make the final corrections to hit a planet.
Now scatter the sand, not much, but enough to cover the diameter of the planet.

What kind of damage can we expect?

>>2278367
Quite a bit.
A single grain of sand has a mass of about 10 nanograms (10*10^-9 grams -- varies with size). Accelerated to 0.9999 c a body will have a mass more or less seventy times its mass at rest: for our grain of sand it means 70*10^-9 grams. Also, at that speed the grain will have a kinetic energy of about 3 megajoules, slightly less than one kilogram of TNT. Even assuming that the sand burns up completely in the atmosphere of the planet we're looking at 3 exajoules (3 billion kilojoules) of energy added to the planet for each kg of sand you load into the ship. For comparison, Earth recieves about one twentieth of that energy per second from the Sun. If you load, say, a million kg of sand in the ship it will add to the planet more or less the energy it would recieve from the sun in EIGHT MONTHS.
Imagine the global problems that kind of heating would cause.

>>2278550
And I meant 3 billion gigajoules there, not kilojoules. Go me.

>>2278550
According to the book it blew the atmosphere clear off.

Thanks

>>2278367
>What kind of damage can we expect?
If it's fine grained loose sand, rather than big clumps, there's a good chance it'll deposit most if not all its energy into the atmosphere. 100 tonnes at half of lightspeed is on the order of a thousand gigatonnes of TNT, so there's a good chance that the atmosphere will be either outright obliterated, most of it blown off, or at the very least the planet would be uninhabitable.

Keep in mind that this amount of energy is enough to (if it impacted the ground directly) change the velocity of the Earth by 1 cm/s. That might not seem like a lot, but it IS an entire planet.

>>2278550
SAND FUCKS YOUR SHIT UP is the coolest attack I've heard of in a while.

>>2278633
WHICH BOOK, sounds awesome.

>>2278690
He said which earlier.

>>2278700
>a paperback novel
>the book
No, I don't see a title.

>>2278550
Ok, redid the calculations, I fucked up converting units (yet again). The mass of a grain of sand is ten micrograms, not nanograms, therefore each grain has a kinetic energy of 3 gigajoules, slightly less than one ton of TNT.
The part about the exajoules of energy still stands, however, since I did the calculations starting from the total mass, not the mass of the single grains.

A Thought I had while Playing @3...
If Jeeg used his Hugging attack on the STMC that Gunbuster used the Double Buster Collider on, and managed to split it, how much pressure would he need to apply?

>>2278727
Oddly enough, googling for 'c-fire 100 tonnes of sand planet' leads to this page. Google is fast.

Saging myself for a useless post.

>>2278746
A better question is how the fuck he managed to hug it.

>>2278665
Although friction might vaporize the grain, the inetia remains so the grain will simply be at the plasma state by the time it hits the ground.

>>2278690
Legacy Trilogy: Star Marine

It was preceeded by one of the most intense space battles to date.

>>2278771
With Ignore Size ability

>>2278755
It's actually spelled Seafire

supposed to be a joke.

>>2278812
Pic related for first book's synopsis.

>>2278832
Which part?

>>2278900

>>2278812
>Although friction might vaporize the grain, the inetia remains so the grain will simply be at the plasma state by the time it hits the ground.
That's not a given though, otherwise every meteor would impact the ground, and most don't. How much of the energy's transferred to the atmosphere is a function of mass, size, and velocity. I once saw a javascript calculator that would tell you how much of the object's energy actually made it to the ground, but I haven't been able to find it again.

>>2279045
This is more to the fact that it's going .95C than it's mass

>>2278932
You should hear what earth was planning to do with the slaves.