Power in space · Generation, transmission, storage, use · Government and first-party sources
poweringspace
Image of the Day · 2026-07-03

Six Melts on One Bus

The wiring is the ornament: one checkerboard bus holding six spheres of molten metal in free fall.

An artistic imagining, not real hardware. Ivory line-work panel in the Vienna Secession manner: a black and green checkerboard border frames a bank of six square furnace cells set in a strict grid. A trunk cable enters from off frame at the left through a bushing and feeds a wide horizontal bus of alternating black and green squares that runs the width of the frame; four vertical risers of the same checkerboard drop from it and send short horizontal taps into each cell, and a black and white return bus closes the circuit along the floor of the bay. Inside the cells, drawn in fine green and black outline, six stages of a melt: a faceted cold scrap, the same scrap glowing, a free-floating gold sphere of molten metal cradled by open coil arcs and ringed with short heat strokes, that sphere drawn through a die into a ribbon between two rollers, a molten slug pressed flat between two field plates, and a finished cross-braced truss with one end still warm. Tiny gold droplets drift loose in every cell. Two suited crew in deep green, their torsos made of checkerboard squares cut from the same lattice as the border, work at the return bus below, boots hooked under a restraint rail, beside a spool of ribbon and a finished truss floating free. A row of viewports along the top shows the limb of a green world. Purely procedural geometry; no text; nothing shown exists.
An artistic imagining, rendered procedurally, of the wiring of a foundry in free fall: one bus, four risers and six taps carrying power to six cells where metal is melted without a crucible, held and heated by field alone. Containerless melting in microgravity is real - ESA's Electromagnetic Levitator and JAXA's Electrostatic Levitation Furnace both melt samples aboard the ISS with nothing touching them - but no foundry of this scale exists. Image: poweringspace.com. Artistic imagining.
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