They could be a bit more innovative with infrastructure building, like creating glass from the desert sand using solar: https://vimeo.com/25401444 https://vimeo

They could be a bit more innovative with infrastructure building, like creating glass from the desert sand using solar: https://vimeo.com/25401444 https://vimeo.com/25401444 Not sure if it would do clear panes but could be used for pipe work and scaffolding perhaps.