Rolando · digital playground

Hi, I'm Rolando. Welcome to my digital playground.

An engineer in London building things to understand how the world — and machines — work. My projects live at the intersection of geopolitics, materials science, and machine learning. Everything below is built by me, and most of it is free to explore.

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Things I've built

Each one started as a question I wanted to answer. Open them, break them, tell me what you think.

Planet LIVE · FREE

A live geopolitical globe

Real-time conflicts (GDELT + UCDP), satellite tracking, military bases, nuclear and AI infrastructure — all on a 3D Earth you can spin. Open it without an account.

Open the globe →
MaterialTech LIVE · FREE

A 3D atomic explorer

Search 36,700+ materials from the Materials Project. Spin the crystal structure in 3D, ask an AI assistant about the lattice. The most niche thing here, and probably my favourite.

Open MaterialTech →
RL Playground LIVE · FREE

Watch algorithms learn

A learning ladder from maze pathfinding (BFS, A*) up to deep RL agents that teach themselves Pac-Man and Pong on the GPU — and a “university” where a large model distils a small one to mastery. Pathfinding runs in the browser; the GPU stages connect to your own machine.

Open the playground →

Send me a note

Bug you spotted, an idea for a project, an enterprise enquiry, or just hello — they all land in the same inbox.

Contact Information

Location London, United Kingdom