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812 projects · showing 541–570 Physics and Astronomy — clear category filter Clear all

ISEF · 2019

Sound Velocity in Corrugated Pipes

Physics and Astronomy

In this work, it is clarified how sound velocity slows down in corrugated pipes. The reduction of sound velocity, in particular, its dependence on geometrical structures of inner corrugation…

ISEF · 2019

The Flight of Arrows

Physics and Astronomy

The goal of this project was to determine the most efficient number of fletchings on an arrow, testing to see how a change in this number of fletchings would affect the shooter’s accuracy. I…

ISEF · 2019

The Unpredictability of Photons

Physics and Astronomy

As technology increases in function and ability, threats against security and privacy also grow. The results of this project could better refine the ability of sending undecryptable messages…

ISEF · 2019

Tune Less, Play More

Physics and Astronomy

The purpose of this experiment was to discover whether coated acoustic guitar strings have less change in note frequency, compared to uncoated acoustic guitar strings, allowing guitar player…

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