Manned silk hydrogen balloons as battlefield surveyors played a hugely important role in the american civil war. But yeah, it might be a bit much given the very

Manned silk hydrogen balloons as battlefield surveyors played a hugely important role in the american civil war. But yeah, it might be a bit much given the very remote sites of tin mining for most of the bronze age. Other metals like iron also work but are almost equally scarce at the time.