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So something I'm asked a lot regarding

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the gimbal video is: if it's just a glare,

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if it's just some kind of glare in the

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camera, then how can the glare rotate

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when the horizon doesn't rotate? How can

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the glare rotate independently of the

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horizon? Now it's actually not that

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complicated. Now the way the camera is

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mounted it has to rotate when it goes

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over zero degrees, when it's going over

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the forward-facing direction, just

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because of the way it's mounted, because

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of the gimbal system, This is an unwanted

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rotation. So what they do is they have a

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thing called a derotation mechanism

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that levels out of the rotation to make

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it so that the horizon is the way it

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should be, which is level to the actual

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horizon as seen by the pilot. So this

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derotation mechanism is applied after the

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actual rotation of the camera to remove

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the unwanted rotation so let's see what

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that looks like if we have this little

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camera here and we rotate it and say

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that's an unwanted rotation and we want

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to remove this unwanted rotation. We just

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apply a derotation to it. In this case I

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just used a motion tracker to remove, to

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track the motion and remove the rotation.

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So we've derotated it here, which gives

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the horizon, my garage door here, remains

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steady and the glare itself rotates

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because the glare is a function of a

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part of the camera and if we are

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rotating the camera the glare rotates

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relative to the horizon. And so if we

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then apply this derotation to get the

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horizon steady the horizon doesn't

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rotate and the glare does rotate. So that

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explains what's going on in the gimbal

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UFO video the glare is rotating because

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the camera is rotating. The horizon isn't

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rotating because they don't want it to

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rotate. The rotation is unwanted, a

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function of the gimbal system the

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derotation rotates the glare and that's