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
2026-07-26 | Simulation TNG50: A Galaxy Cluster Forms
How do clusters of galaxies form? Since our universe moves too slowly to watch, faster-moving computer simulations are created to help find out. One famous effort is TNG50 from IllustrisTNG, an upgrade of the famous Illustris Simulation. The first part of the featured video tracks cosmic gas (mostly hydrogen) as it evolves into galaxies and galaxy clusters from the early universe to today, with brighter colors marking faster moving gas. As the universe matures, gas falls into gravitational wells, galaxies forms, galaxies spin, galaxies collide and merge, all while black holes form in galaxy centers and expel surrounding gas at high speeds. The second half of the video switches to tracking stars, showing a galaxy cluster coming together, complete with stellar streams. The outflow from black holes in TNG50 is surprisingly complex and details are being compared with our real universe. Studying how gas coalesced in the early universe helps humanity better understand how our Earth, Sun, and Solar System originally formed. Explore the Universe: Random APOD Generator