Blog

Two Tetrahedra, Seven Axes: Hybrid Combination Puzzles

3D , Math
06 Oct, 2026

Rubik-style puzzles built from just two tetrahedra: an interactive 3D generator and 7-axis simulator for cubes, octahedra, hybrids and stars.

Phased Array Pattern Explorer

Engineering , Physics
17 May, 2026

An interactive browser-based simulator for phased antenna arrays — geometry, steering, tapers, and the impairments that ruin real systems.

Three modes, one resonator: an interactive DRA explorer

Engineering , Physics
12 May, 2026

An interactive tool for building intuition about dielectric resonator antennas — modes, coupling, and the size–bandwidth tradeoff, all live in your browser.

Watching a microwave reflect off a step — in your browser

Engineering , Physics
12 May, 2026

A guided tour of an interactive 3D FDTD simulator running entirely on the GPU in your browser, with a live field animation, colormap chooser, and 3D landscape view.

Which RF rectifier topology wins? It depends on the power.

Engineering , Physics
12 May, 2026

An interactive tool comparing half-wave, Greinacher doubler, full-wave bridge, and Cockcroft–Walton rectifiers head-to-head from −30 dBm to +20 dBm.

Why Wi-Fi won't power your sensors

Engineering , Physics
11 May, 2026

An interactive Friis transmission calculator showing why ambient RF energy harvesting almost never works — play with the sliders, watch the budget collapse.