Rube Goldberg machine is deliberately designed to accomplish specific tasks in an indirect and very complicated manner (Wolfe, 2000). The machine combines a series of simple devices that are interlinked and dependent. This essay evaluates the aspects of velocity, acceleration, and accuracy for a specific time and motion of “Ok Go” machine.
The essay considers the linear motion in the video “OK Go” from 17 th to 21 st seconds. The video is from the album “Of the Blue Colour Sky” (“Ok Go”, 2010). Velocity refers to the speed of something in motion, in a specific direction (Brush, 2017). At this point, the velocity of the rolling ball is constant thus zero acceleration, that is, neither positive nor negative. The ball moves forward.
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Motion estimation refers to the process of establishing motion vectors. These vectors refer to the transformation from on 2D image to another (Albu et al., 2015). In this case, the motion could be estimated considering the adjacent position of the ball and the devices before being the machine is initiated (“Ok Go”, 2010). The ball just needs a little kinetic energy as it is set on a cliff, which makes the machine more reliable.
In this case, accuracy refers to the degree to which the motion mentioned above confirms the expected or estimated outcome. The rolling ball is expected to roll and transmit the kinetic energy obtained to the devices at the bottom of the ‘cliff’, which then transfers the motion to the other devices and the process continues (“Ok Go”, 2010; Brush, 2017). The kind of accuracy captured by this motion is movement accuracy, which explains that the faster or harder you hit, the more likely you will increase the motion, and probably the excess motion may cause the machine to fail. For instance, the high motion may dislocate the devices. Therefore, one needs to hit the appropriately do allow for an even distribution of kinetic energy to the ball.
References
Albu, F., Florea, C., Zamfir, A., Drimbarean, A., & Corcoran, P. (2015). U.S. Patent No. 9,160,897 . Washington, DC: U.S. Patent and Trademark Office.
Brush, J. L. (2017). Forces and Motion (Rube Goldberg PBL).
Wolfe, M. F., & Goldberg, R. (2000). Rube Goldberg: Inventions! . Simon and Schuster.
YouTube. (2010). OK Go - This Too Shall Pass - Rube Goldberg Machine - Official Video . [Online] Available at https://youtu.be/qybUFnY7Y8w [Accessed 4 Jul. 2018].
