Nathan G. Johnson

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There are certain simple rotations of objects that most people cannot reason about accurately. Reliable gaps in the understanding of a fundamental physical domain raise the question of how learning to reason in that domain might proceed. Using virtual reality techniques, this project investigated the nature of learning to reason across the domain of simple(More)
This article presents a theoretical and experimental framework for assessing the biases associated with the interpretation of numbers. This framework consists of having participants convert between different representations of quantities. These representations should include both variations in numerical labels that symbolize quantities and variations in(More)
Animal propulsors such as wings and fins bend during motion and these bending patterns are believed to contribute to the high efficiency of animal movements compared with those of man-made designs. However, efforts to implement flexible designs have been met with contradictory performance results. Consequently, there is no clear understanding of the role(More)
i Acknowledgements I would like to thank my advisor, Sergei Katsev, for his advice and assistance throughout this project. I also want to thank my other committee members, Jay Austin and Nathan Johnson. The courses and discussions I had with them were a valuable part of my graduate education. I want to thank Jiying Li for her constant support, willingness(More)