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Full-Text Articles in Physics
An Analysis Of Energy Production And Efficiency In Various Longbow Archery Models, Hannah Mcpherson
An Analysis Of Energy Production And Efficiency In Various Longbow Archery Models, Hannah Mcpherson
Honors Projects
An analysis of the energy production and efficiency of three lab-tested longbow models is undertaken. The first model, which is constructed to not allow flexing of limbs and which uses a frictionless cart and track in place of an arrow, demonstrated an efficiency of 50% +/- 40%. The second model, which is constructed similarly to the first with the exception of a wooden dowel now being used as an arrow-like object, demonstrated an efficiency of 13% +/- 3%. The last model, a 3D printed longbow with flexible limbs using the wooden dowel as an arrow-like object, demonstrated an efficiency of …
Statistical Comparison Between Observational Data And Simulated Gravitational Waves, Matthew Gordon
Statistical Comparison Between Observational Data And Simulated Gravitational Waves, Matthew Gordon
Honors Projects
The goal of this project is to determine the effective accuracy of a simulation that graphs the gravitational waves emitted from a binary system. The Python program that creates these graphs uses different analytical models to approximate each phase of the model, inspiral and merger. Data from the Gravitational Wave Open Science Center (GWOSC) website regarding an observed event is used to compare to the output of the simulation. Another Python program matches up the two waveforms and calculates a correlation coefficient between the two, which is close to 1, as desired. Additional graphs are simulated using masses that differ …
Improving 3d Printed Prosthetics With Sensors And Motors, Rachel Zarin
Improving 3d Printed Prosthetics With Sensors And Motors, Rachel Zarin
Honors Projects
A 3D printed hand and arm prosthetic was created from the idea of adding bionic elements while keeping the cost low. It was designed based on existing models, desired functions, and materials available. A tilt sensor keeps the hand level, two motors move the wrist in two different directions, a limit switch signals the fingers to open and close, and another motor helps open and close the fingers. All sensors and motors were built on a circuit board, programmed using an Arduino, and powered by a battery. Other supporting materials include metal brackets, screws, guitar strings, elastic bands, small clamps, …