标题： VM Slipher 对发现膨胀宇宙的贡献 显示英文标题

标题： The contribution of VM Slipher to the discovery of the expanding universe

摘要： 简要介绍了发现膨胀宇宙的历史，重点强调了VM Slipher的开创性贡献。 建议1929年著名的哈勃图也可以称为哈勃-斯莱弗图。 还指出，膨胀宇宙的发现符合科学进步作为渐进式发现和接受的传统观点，并不认同库恩关于科学通过突然范式转变发展的观点。 显示英文摘要

摘要： A brief history of the discovery of the expanding universe is presented, with an emphasis on the seminal contribution of VM Slipher. It is suggested that the well-known Hubble graph of 1929 could also be known as the Hubble-Slipher graph. It is also argued that the discovery of the expanding universe matches the traditional view of scientific advance as a gradual process of discovery and acceptance, and does not concur with the Kuhnian view of science progressing via abrupt paradigm shifts.