On unconventional fall of rainbow spring
Abstract
In this study we experimentally show that a stretched rainbow spring under gravity or extra weight may exhibit unconventional fall motion. Specially, when the rainbow spring is released from a high place, its lower end remains stationary until the spring wires stack together and then all the parts of the rainbow spring falls down together. We utilize a high-speed camera to record the fall process of one plastic and one metal rainbow spring under different loading conditions to systematically investigate this unconventional physical phenomenon. We use the time of the elastic wave propagating the length of the spring to predict the duration of the lower end of the rainbow spring remaining still. The findings from this study elucidate this physical phenomenon which has potential for the areas requiring temporary absolute space positioning.
Keywords
Cite
@article{arxiv.1902.05815,
title = {On unconventional fall of rainbow spring},
author = {Jie Liu and Xing Wang and Jiongzhao Liang and Bing Liu and Wei Wei and Huimin Shi and Guilin Wen and Yi Min Xie},
journal= {arXiv preprint arXiv:1902.05815},
year = {2019}
}
Comments
9 pages, 6 figures