• @Crashumbc
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    71 day ago

    Yeah it vanished because it vaporized.

    • @finitebanjo
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      11 day ago

      I think they were able to track it for at least 2 frames, thus calculate it’s speed.

        • @CheeseNoodle
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          31 day ago

          tbf the calculated speed is actually roughly the minnimum based on its starting position and the frame it appeared in. it could have actually been going even faster.

        • @finitebanjo
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          21 day ago

          One frame before the blast and one frame after, but semantics.

          • Victor
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            01 day ago

            I don’t count having no visual indication of the object as “tracking” it, if we’re talking semantics. One frame could equal an even faster speed than what it would minimally take to cross the entire width of the image at some trajectory vector. For other vectors, it could be (much) less (like not passing straight through the image from on side to the opposite side, e.g.).

            It’s important to not hang too hard on this as the escape speed is dependent on air resistance, or rather lack thereof. Those escape speed numbers are defined along with the assumption of zero air resistance or other forces acting on the object.

            • @finitebanjo
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              222 hours ago

              You can use the frame from before to calculate the MINIMUM speed. It could have been going even faster.

              • Victor
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                -114 hours ago

                Or slower, depending on trajectory across the image.

                • @finitebanjo
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                  113 hours ago

                  No, not really. The object was placed directly above the payload beneath a 150M straight borehole. If there was some sort of angle to the hole them I’m sure the researchers would have accounted for it.

                  • Victor
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                    -113 hours ago

                    Right. Then the angle is such that you could calculate it. But it still depends on the trajectory, so that’s not wrong, for whoever down voted…

        • Victor
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          113 hours ago

          lol what