Note to viewers linked from IGS, this contains RL information.

Due to this discussion on the IGS, I decided to do some math to figure out the effect the Oblivion doomsday might have if applied to a planet

All of these calculations are supposed to give an order-of-magnitude estimate of the max power of the Oblivion, and should be taken with a grain of salt.

- The Oblivion doomsday takes 22,500 GJ of energy to activate
- The Oblivion does only kinetic damage, indicating that it uses this energy to accelerate large quantities of mass to high speeds.
- If we assume that the Oblivion has an energy efficiency of 100% (A ridiculously high estimate), this means that 22,500 GJ of energy are delivered to the target (The same applies to EM and Thermal weapons. Explosive weapons have different formulas)
- 22,500 GJ is also the amount of energy in 5 kilotons of TNT, or a
*very*small nuclear weapon (Little Boy, the bomb dropped on Hiroshima, had a yield of 15 tons for comparison)

But this assumes the *only* energy to go into the superweapon is the activation energy.

- The Oblivion has a powergrid requirement of 100,000 MW. If we assume that all of this energy is stored in a separate capacitor while the weapon recharges (the âcooldownâ period) the energy amounts look a bit different.
- The Oblivion has a recharge time of 600 seconds
- 1 watt = 1 joule per second
- 100 GW = 100GJ/sec
- 600*100 GJ = 60,000 GJ over the course of the cooldown period
- 82,500 GJ is then the total amount of power a ship pumps into the module in one cycle
- 82.500 GJ is equivalent to about 20 kilotons of TNT. Or a small nuke. (Fat Man, dropped on Nagasaki, had a yield of about 21 kilotons of TNT)

But the Oblivion also requires fuel! Specifically 75,000 units of Nitrogen isotopes!

- Nitrogen isotopes have no explicitly defined mass
- However, the mass of Caldari fuel blocks, being solid, can be calculated
- Nitrogen ice has a density of approximately 1000 kg/m^3
- Caldari fuel blocks have a volume of 5 m^3
- If we assume that all of this volume is nitrogen ice, this gives us a mass of 5,000 kg
- Each fuel block contains 444 units of nitrogen isotopes
- 5000 / 444 = 11.26 kg for the mass of one unit of nitrogen isotopes
- Letâs round 11.26 down to 10 for easier math and to partly account for the other components of fuel blocks (it also makes sense for one âunitâ to be a round number)
- This means that the Oblivion doomsday requires 750,000 kg of nitrogen isotopes to fire
- Just for funsies, letâs assume that all 750,000 kg of N is converted directly into pure energy, using E=mc^2, and delivered to the target with zero loss. This gives us a total energy of about 67,407,000,000,000 GJ, 16,000,000,000 kilotons of TNT, 332,000 Tsar Bombas going off at once, or one dinosaur-killing asteroid. Now we can truly call this weapon a doomsday!
- A more reasonable-sounding assumption is that the nitrogen fuel is used in a fusion reactor. However, there is no known formula for this, and it is not a common process in stars. Nitrogen
*is*an important part of the Nitrogen-Carbon-Oxygen cycle, but this cycle is used to turn hydrogen into helium, and thus no nitrogen is actually consumed or produced.I could*probably*calculate the energy if I knew what the products were, but I donât. - Nitrogen isotopes are explicitly described as stable, and thus fission would not work
- Nitrogen does not burn, and trying to store monatomic nitrogen for later recombination is a whole new kind of stupid.
- Suddenly direct conversion into pure energy seems much more likely

*BUT* maybe CCP devs just donât have a sense of scale. In that case, letâs compare the Oblivion to another weapon in-game: Titanium Sabot M.

- The Oblivion doomsday does 2 million points of kinetic damage to whatever it hits.
- Titanium Sabot M does 12 points kinetic and 4 points explosive
- Titanium Sabot M has a mass of 1 kg.
- Since we are focusing on kinetic damage here, I will ignore the shellâs explosive properties
- 2 million divided by 12 is approximately 166666.6666666667, which I will round up to 167,000 to make the math easier
- In other words, one must fire 167 thousand rounds of Titanium Sabot M to do the same amount of raw kinetic damage as the Oblivion
- When the order was given by Tibus Heth during Operation Highlander to fire the
*Shiigeru*âs doomsday at Caldari Prime, the*Shiigeru*was in âlow orbitâ, which I will estimate as 200km above the surface (a low estimate) - Assuming acceleration due to gravity at 10m/s^2 , something dropped straight down from a height of 200km will reach a speed of 2 km/s
- 167,000 kg of mass moving at 2 km/s has an energy of 334,000,000,000 J, or 334 GJ
- BUT the Titanium Sabot M moves
*faster*than 2km/s So letâs crank up the speed to, say, 100km/s. This feels reasonable to me, given that weapons technically hit instantaneously. - For the given mass, this gives us an energy of 835,000 GJ, or 200 kilotons of TNT. Here is a simulation of a nuclear explosion of that magnitude
- Of course, this section has the sketchiest math (Because CCP doesnât give us much to work with here), and 200 kilotons still feels pretty low. So I would consider 1 Chixulub Impactor to be the best estimate for the total damage output of the Oblivion doomsday.