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# MCU: Iron Man Tanks a Meteor on Titan (Small Building to Town Level)

To avoid the errors of cinematic timing or having the velocity of the meteor be too high to look realistic based on the movie, I will use the most reliable parameter, crater impact, to find the total energy of the meteor.

Iron Man's height: 322 px at 1.96 m

From these frames we can see that the meteor isn't very big, considering that we already see the stuff in the background in the lower right-hand corner (second frame).

To estimate the diameter of the meteor, we need to find its center first.

The length of the meteor just outside the diameter: 1734 px. Half of that is 867 px. Using that as the center point, we find the radius of the meteor: 997 px. So the total diameter of the meteor should be 1994 px.

Meteror diameter: 1.96 m / 322 px * 1994 px = 12 m.

Based on the debris wave, the crater diameter shouldn't be too high. It definitely should not be above 50 meters. In addition, it looks like the meteor was moving with a speed of 2.5 meteor diameters per second, which is equal to 30 m/s.

To find the kinetic energy of the meteor, we will use the online calculator. Jay Melosh, one of the people who made this calculator, wrote many books and created various formulas for finding meteor impact values, so the calculator is reliable.

Since the meteor is crashing on Titan and not on Earth, the calculation values should be changed appropriately. Note that MCU Titan is not one of Saturn's moons, but since the analogy is obvious: same name, weaker gravity, etc., plus Earth-616 Titan is the same as the real world moon Titan, it's reasonable to derive most of MCU Titan's properties from the real world Titan)

Titan's surface gravity: 1.4 m/s^2

Titan's surface density: 1,300 kg/m^3

Impact angle: 45 degrees

Meteor density: 1,500 kg/m^3 (since the meteors are just rocks from one of Saturn's moons, I am going to use the density of the moon Dione, which is actually Thanos' real name in the comics)

The final kinetic energy of the meteor = 6.1E+8 Joules (small building level).

This is what it looks visually. However, the Infinity War movie script reveals that the meteor is actually about the size of a baseball field:

A typical baseball field has dimensions of about 320 ft by 320 ft. The mean radius is (200 ft + 160 ft) / 2 = 180 ft = 55 meters.

So the new diameter of the meteor is 110 m. Considering that the meteor moves about 2.5 times its diameter in 1 second, its speed should be 2.5 * 110 m / 1s = 275 m/s (619 mph). The crater diameter ends up being 728 meters. Wow. It looks nowhere near that based on the visuals, but that's what the script implies. The final kinetic energy is 3.95E+13 Joules or 9.4 Kilotons (town level).

Keep in mind that for both of those calculations, Iron Man doesn't tank the full force of the impact. He tanks a small fraction of it.

The energy that Iron Man tanks upon initially colliding with the meteor should be equal to the energy that accelerates him to the same speed as the meteor. Iron Man's armor weighs 108 kg and Tony weighs 84 kg so the total is 192 kg.

Low end energy: 0.5 * 192 kg * (30 m/s)^2 = 86,400 Joules (wall level)

High end energy: 0.5 * 192 kg * (275 m/s)^2 = 7.3E+6 Joules (wall level)

Now assuming that the meteor's impact energy gets spread out equally and is perfectly channeled through Iron Man (which shouldn't be true, but for simplicity, this is done for the high ball estimation).

Iron Man's surface area: 2.3 m^2. Half of that is 1.15 m^2 since only half is facing the meteor.

The meteor's frontal surface area:

Low ball: 4 * pi * (6 m)^2 = 452 m^2. Frontal area: 226 m^2

High ball: 4 * pi * (55 m)^2 = 38,013 m^2. Frontal area: 19,000 m^2

## The total energy tanked by Iron Man:

High balled low ball: (1.15 m^2) * (6.1E+8 Joules) / (226 m^2) = 3,103,982 Joules (wall level)

High balled high ball: (1.15 m^2) * (3.95E+13 Joules) / (19,000 m^2) = 2.4E+9 Joules or 0.6 tons of TNT (building level)

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