Those green flames coming out of manholes aren’t sci-fi — they’re electrical fires. Beneath many manholes are underground power vaults packed with high-voltage cables and transformers. When a cable fails or shorts, the intense heat ignites insulation and vaporised chemicals. Copper from the wiring burns green, producing that eerie glow. In some cases, trapped gases like methane build up underground and ignite, forcing flames up through the manhole. It looks unnatural, but it’s a dangerous mix of

There's no massive anchorage – the advantage cable-stayed bridges have

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