minus-squaremorphballganon@lemmynsfw.comtoDIY@slrpnk.net•This mirror is 100 times cheaper than mirrors for cheap solar electricity & thermal energylinkfedilinkEnglisharrow-up3·29 days ago… just make sure you don’t light the grass or your neighbor’s house on fire linkfedilink
… just make sure you don’t light the grass or your neighbor’s house on fire