the.com/flux

the universe's only honest promise: everything you're standing on is already leaving.

means A state of constant change or flow, or in physics the rate at which something (like energy, fluid, or magnetic field lines) passes through a given surface.

from From Latin 'fluxus,' meaning a flowing, from 'fluere,' to flow — the same restless root that gives us 'fluid,' 'fluent,' and 'influence' (literally a 'flowing in'). The word arrived in English by way of Old French and originally described bodily flows, including some quite unpleasant ones, before settling into its broader sense of ceaseless motion. The metalworker's 'flux' — the stuff that helps solder flow — keeps the old meaning beautifully literal.

heraclitus
He bet existence itself on constant change.
welding flux
Chemical paste that lets molten metal actually fuse.
magnetic flux
Its change through a coil births electric current.
capacitor
Fictional gadget powering 88-mph time travel.
latin root
From fluere, meaning simply to flow.
for instance

the gulf stream — ocean current carrying 30 million cubic meters of water per second along the atlantic coast

solar wind — stream of charged particles from the sun reaching earth at 400 km/s

the amazon river discharge — discharges 209,000 cubic meters of water per second into the atlantic ocean

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