17-05-2018 10:00 via tucsonweekly.com

Cheer in a Handful of Dust

When the residents of Arcosanti pour molten bronze to craft their bells, they place pennies next to the matrix.When the residents of Arcosanti pour molten bronze to craft their bells, they place pennies next to the matrix. That way, if a bit of the superheated metal spills onto the copper of the penny, it makes a bright green flame.…
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