Sunny Side Up Software

Sunny Side Up Software is a gateway to daughter websites, currently two devoted to interactive science and one to text analysis. They are briefly introduced below; click or tap a site’s logo to visit. For background on this site, see Help --> About.

GPS Relativity

Satellites move at high speed far above Earth, where gravity is weaker. According to Einstein's general theory of relativity, weaker gravity makes clocks run faster. According to his special theory of relativity, fast motion makes clocks run slower. It's hard to imagine, but time passes at a different rate aboard a satellite than on Earth! GPS Relativity (2026) shows live GPS or GLONASS satellites, depending on the receiver's current mode, and the calculated relativistic clock effects for the selected satellite.

Quantum @ Home

Quantum mechanics describes nature at atomic and subatomic scales, where the rules differ from everyday classical intuition. A single event can be fundamentally unpredictable, even while large numbers of similar events follow highly regular statistical patterns. Quantum @ Home (2026) uses small detectors in an ordinary home to make some of these effects visible through live data and short experiments.

Word Stats

Word Stats (2018) analyzes plain-text documents in one or two languages. It counts words, sentences, syllables, characters, numbers and more; lists unique words and their frequencies; calculates readability metrics for English; and lets you download the results. Analyses take only a few clicks and are free.