Teaching Nanotechnology Using Haptics

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Information about Teaching Nanotechnology Using Haptics
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Published on July 27, 2009

Author: curtistaylor80

Source: slideshare.net

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2009 ASEE Conference Presentation

2009 ASEE Annual Conference and Exposition Development of a Nanoscale Virtual Environment Haptic Interface for Teaching Nanotechnology to Individuals who are Visually Impaired Dianne Pawluk1, Curtis Taylor2, Marcia Hoffman1 and Maria McClintock1 1Dept. of Biomedical Engineering, Virginia Commonwealth University 2Dept.of Mechanical and Aerospace Engineering, University of Florida VCU With support from the National Science Foundation

2 2009 ASEE Annual Conference and Exposition 2 Outline of Presentation What is haptics? Motivation for using haptics to teach nanotechnology Background Learning Modules Preliminary Results Future Plans

3 Traditional Teaching of Abstract Science and Nanotechnology 2009 ASEE Annual Conference and Exposition Traditional methods of teaching lecturesrely on 2-D diagrams or display poor engagement of students difficult to conceptualize more difficult for visually impairedmaterial structure atomic structure New methods needed to increase engagement and perception molecular machine 3

lectures

rely on 2-D diagrams or display

poor engagement of students

difficult to conceptualize

more difficult for visually impaired

4 What is haptics? 2009 ASEE Annual Conference and Exposition The combination of: Perception of forces and position Sense of touch 4

5 Why Nanotechnology, Why Haptics? 2009 ASEE Annual Conference and Exposition Governments, educators and researchers Future demand for employees Diversity educate, attract Students who are blind or visually impaired No one can see what goes on at the nanoscale Pictures are not very intuitive in describing forces inclusiveness, opportunity Sighted students Considerable portion haptic learners engaged, interest The first atomic force microscope 5

6 2009 ASEE Annual Conference and Exposition Virtual Reality System with Haptics for a wide range of ages, compare to something familiarinclude individuals who are blind or visually impaired, sonification6

for a wide range of ages, compare to something familiar

include individuals who are blind or visually impaired, sonification

7 2009 ASEE Annual Conference and Exposition State-of-the-art in Haptics Haptics training surgery, flying aircraft, etc. tele-nanomanipulation teachingPhantom (> $10,000) SideWinder (< $50) Novint Falcon affordableforce feedback device, with position informationeasily replicated in a classroomallows for interactive, multi-sensory exploration of nanoscale concepts for sighted and visually impairedNovint Falcon (< $200) 7

training

surgery, flying aircraft, etc.

tele-nanomanipulation

teaching

affordableforce feedback device, with position information

easily replicated in a classroom

allows for interactive, multi-sensory exploration of nanoscale concepts for sighted and visually impaired

8 2009 ASEE Annual Conference and Exposition What are the big ideas in nanotechnology? 1. Size and Scale 2. Dominant Forces 3. Structure of matter 4. Instrumentation 5. Nanomachines 6. Nanoscale Fabrication Science Engineering 8

9 Module 1: Size and Scale 2009 ASEE Annual Conference and Exposition Understanding of size continuum helps understand matter and materials Idea: controllably “zoom in” on objects that are familiar Implementation represent objects at different scales by gray-scale images intensity = height graphics triangular tesselation in openGL Haptics F = kvirtual* dpenetration 9

10 Module 2: Dominant Forces 2009 ASEE Annual Conference and Exposition Properties of matter change with scale Macroscale gravity inertiaNanoscale van der Waal adhesion forces (electrostatic, capillary, etc.)force 10

gravity

inertia

van der Waal

adhesion forces (electrostatic, capillary, etc.)

Preliminary ResultsFor Teaching Nanoscale Science and Engineering Touching Atoms Interactive Nanofabrication Understanding Atomic Potentials Falcon Force-Feedback Controller

12 Conclusion 2009 ASEE Annual Conference and Exposition Developed new haptic-based, interactive simulations to teach abstract science and nanotechnology concepts Developed learning modules to teach concepts of size and scale dominant forces Demonstrated to prototype to elementary school, undergraduate and graduate students extremely positive reaction Will validate using: cognitive measures affective measures compare to: vision alone and traditional methods 12

Developed new haptic-based, interactive simulations to teach abstract science and nanotechnology concepts

Developed learning modules to teach concepts of

size and scale

dominant forces

Demonstrated to prototype to elementary school, undergraduate and graduate students

extremely positive reaction

Will validate using:

cognitive measures

affective measures

compare to: vision alone and traditional methods

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