Dark version of multilingual eye examination chart

Beautiful multilingual eye examination chart of the early 1900s San Francisco

112 years ago, optometry was a growing profession. In diverse cities like San Francisco, however, the eye chart commonplace in western countries today could not suffice. Enter George Mayerle’s multilingual eye examination chart. George Mayerle’s Vision Test Chart (ca. 1907). Via Public Domain Review Public Domain Review writes: The chart was a culmination of his many years of practice and, according to Mayerle, its distinctive international angle served also to reflect the diversity and immigration which lay at the heart of the city in which he worked....

 · Laura Lis Scott
Diagram of Lagrange points, via NASA

Home on Lagrange

I first came across Lagrange Points many years ago in Arthur C. Clarke’s novel A Fall of Moondust. It boggled my young mind, picturing satellites orbiting in seemingly static positions around the Moon! Of course, in fact they were orbiting Earth and the Moon, affected by and in balance with both gravitational sources. (This is what I think some of the best science fiction does: explore scientific concepts, even in passing, within a fictional story....

 · Laura Lis Scott
North American continent of Earth seen from space

The view from space

This video struck me in a profound way. .__h_video { position: relative; padding-bottom: 56.23%; height: 0; overflow: hidden; width: 100%; background: #000; } .__h_video img { width: 100%; height: auto; color: #000; } .__h_video .play { height: 72px; width: 72px; left: 50%; top: 50%; margin-left: -36px; margin-top: -36px; position: absolute; cursor: pointer; } Only a few hundred people have been in space, but they share an experience that changed them, changed how they see the world....

 · Laura Lis Scott