reading the signal…
Signals / Object / Mapped places
in Bad Arolsen, HE·counted·55 all time
A material made primarily from iron, typically appearing as metal parts, bars, sheets, or structural components.
Counted, not streamed: Iron Material has no time series, so it is read as a footprint across places. All-time count by city.
Things that physically exist: street furniture, signs, buildings. All-time counts.