From Error Analysis to Life's Precision: The Craftsman Spirit and Foundation of a Powerful Nation in the Young's Modulus Experiment

Abstract

Young's modulus is a key parameter characterizing the mechanical properties of materials, and its precise measurement holds fundamental significance in materials science and engineering applications. This study conducted a systematic measurement of the Young's modulus of a metal wire using an FD-YC-I CCD elongation method apparatus, with a focused quantitative and qualitative analysis of systematic, random, and human errors encountered during the experiment. Through rigorous experimental operation and data processing, the measured value of Young's modulus was determined to be 19.6×10¹⁰ N/m². The relative error compared to the accepted value of 20.0×10¹⁰N/m² is 2.0%, which falls within the range of measurement uncertainty. The core of this paper lies in detailing the entire process of error analysis and providing an in-depth argument for how this process concretely embodies the Craftsman Spirit characterized by rigor, focus, and continuous improvement. Furthermore, the paper connects microscopic experimental operations with macroscopic national strategy, exploring the intrinsic logical relationship between the scientific literacy and values cultivated in basic scientific research and supporting the nation's transition from a "manufacturing giant" to a "manufacturing power." This research transcends simple experimental data reporting, representing a complete educational experience that progresses from knowledge acquisition and skill development to value identification and mission elevation.