A list of urls from the beginning of post that don't seem to work anymore: * Measuring the Earth’s Diameter from a Sunset Photo: https://vanderbei.princeton.ed

A list of urls from the beginning of post that don't seem to work anymore: * Measuring the Earth’s Diameter from a Sunset Photo: https://vanderbei.princeton.edu/tex/sunset/ms.pdf https://vanderbei.princeton.edu/tex/sunset/ms.pdf * The Earth is Not Flat: https://vanderbei.princeton.edu/tex/sunset/34-39.OPN.1108twoup.pdf https://vanderbei.princeton.edu/tex/sunset/34-39.OPN.1108two... * Sunset: https://vanderbei.princeton.edu/tex/sunset/sunset.pdf https://vanderbei.princeton.edu/tex/sunset/sunset.pdf * The Earth is Not Flat: An Analysis of a Sunset Photo: https://vanderbei.princeton.edu/tex/talks/sunset/sunsetTalk_RutgersREU_small.pdf https://vanderbei.princeton.edu/tex/talks/sunset/sunsetTalk_...