And when someone drops a brick, and it falls to the floor, unless you're a physicist, you shouldn't infer it fell because of gravity. It could be that the video

And when someone drops a brick, and it falls to the floor, unless you're a physicist, you shouldn't infer it fell because of gravity. It could be that the video was taken in a room in space, and it feel because the space-ship is accelerating, or due to centrifugal forces from artificial gravity, or the brick has metal components, and there's a magnet under it.