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Ramos, L. M.; Reis, C. R. N.; Calheiro, L. B.; Goncalves, A. M. B. – Physics Education, 2021
Using a joystick module, we followed the movement of a chaotic magnetic pendulum. The pendulum bar was attached to a joystick that served as a pivot point and biaxial angular motion sensor. Using an Arduino board, we could follow the position as a function of time along both the "x" and "y"-axis and draw a graph showing the…
Descriptors: Physics, Science Instruction, Computer Software, Motion
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Crawford, Walt – Library Hi Tech, 1993
Discusses personal computer price trends since 1986; describes offerings and prices for four direct-market suppliers, i.e., Dell CompuAdd, PC Brand, and Gateway 2000; and discusses overall value and price/performance ratios. Tables and graphs chart value over time. (EA)
Descriptors: Comparative Analysis, Computer Graphics, Computer Peripherals, Cost Effectiveness