Huge thanks to DMUA on Discord for helping me work out this absolutely ridiculous, frustrating feat! :D Seriously, thanks, DMUA.


Supergirl throws a basketball. It ricochets a lot, & goes to the moon. To the right is a picture of the moon's diameter. The moon has a diameter of about 3,475 kilometers, according to

Thus, 3,475 km spread across 472 pixels = 7.3622881355932203389830508474576 kilometers per pixel.

Using this site, I overlayed the first frame from before the moon begins to move, and the last frame where it is visible in motion: I then pixel scaled the distance between the leftmost parts of the moon. Here is the result, using 50% transparency:

An 11 pixel difference in distance. 11 * 7.3622881355932203389830508474576 = 80.985169491525423728813559322034 kilometers.

Wikipedia claims the moon's mass is 7.342×1022 or 73,420,000,000,000,000,000,000 kilograms.

The first frame where we see the moon move is 2,907, & the last frame where we see it moving is 2,919. So it moves for about 13 frames. At 25 frames per second, this means 0.52 seconds.

80.985169491525423728813559322034 / 0.52 = 155.74071056062581486310299869622, meaning it moved that many kilometers per second.

Kinetic energy is energy yield = 0.5 * mass * velocity (or speed) ^2. So 0.5 * 73,420,000,000,000,000,000,000 kg * 155.74071056062581486310299869622^2 =

0.5 * 73,420,000,000,000,000,000,000 * 155,740.71056062581486310299869622^2 = 8.9040725127083983169836593918976*10^32 joules

If I'm reading that right, & doing my numbers right, that is a little under a thirteenth (About a 12.69th) of the maximum value for 5-B PLANET LEVEL.

Supergirl, please. Your arcade games are going to get us all killed.

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