Bazaar Market
Visit bazaar.rocks Web Dev Full-stack commerce SvelteKitDjangoPostgreSQLTailwind CSS
A full-stack marketplace for used gear, vehicles, tools, and other high-value goods.
Systems + Software
Engineering tools with a product mindset
I'm Rob Rothschild, a systems & software engineer in Bellingham, WA, focused on simulation, data analytics, and interactive tools for hardware and test systems.
Explore projects across C++ gameplay, Python and MATLAB data-analysis tools, and modern web apps built with Astro, Django, and SvelteKit.
Current Projects
1 / 5
Testing Dashboard
Engineering Lab workflow tooling MATLABPythonSQLSignal Processing
A custom dashboard for comparing collected test data against model predictions and engineering expectations.
Base Defender
Interactive Systems C++ prototype C++EmscriptenGameplay Systems
An arcade-style C++ project focused on moment-to-moment control, collision, and responsive gameplay systems.
Simulytics
Engineering Analytics platform PythonDjangoSvelteKitFlask
An interactive modeling and analysis dashboard built to make simulation outputs easier to inspect and compare.
Londonderry Quarry
Web Dev Client website AstroStatic Site DesignContent Structure
An early client-facing website built to present a Pacific Northwest sculptor and quarry operation online.
NASA's Astronomy Picture of the Day
2026-09-20 | Analemma over the Callanish Stones
If you went outside at the same time every day and took a picture that included the Sun, how would the Sun's position change? A visual answer to that question is an analemma, a composite image taken from the same spot at the same time over the course of a year. The featured analemma was composed from images taken every few days at noon near the village of Callanish in the Outer Hebrides in Scotland, UK. In the foreground are the Callanish Stones, a stone circle built around 2700 BC during humanity's Bronze Age. It is not known if the placement of the Callanish Stones has or had astronomical significance. The ultimate causes for the figure-8 shape of this and all analemmas are the tilt of the Earth axis and the ellipticity of the Earth's orbit around the Sun. At the solstices, the Sun will appear at the top or bottom of an analemma. The featured image was taken near the December solstice and so the Sun appears near the bottom. Equinoxes, however, correspond to analemma middle points -- not the intersection point. In two days there will be an equinox ("equal night"), when day and night are equal over all of planet Earth. Many cultures celebrate a change of season at an equinox. APOD's main NASA site is moving: From apod.nasa.gov to science.nasa.gov/apod