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Several of the examples shown in that article have a conspicuous round shiny blob on them. What is that? How does it get there?
by abeppu 5y ago
Several of the examples shown in that article have a conspicuous round shiny blob on them. What is that? How does it get there?
- kjhughes 5y agoPer jrockway's cool videos he posted in another comment, it's likely a bead of nickel or iron, mentioned at this timestamp: https://youtu.be/0xD7SvtPAMM?t=389 https://youtu.be/0xD7SvtPAMM?t=389