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poVoq@slrpnk.netM to DIY@slrpnk.netEnglish · 8 months ago

This mirror is 100 times cheaper than mirrors for cheap solar electricity & thermal energy

youtu.be

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This mirror is 100 times cheaper than mirrors for cheap solar electricity & thermal energy

youtu.be

poVoq@slrpnk.netM to DIY@slrpnk.netEnglish · 8 months ago
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This concave mirror is made from expanded polystyrene and this reflective film at a cost of 25 cents per square meter, and it is several hundred times cheape...
  • morphballganon@lemmynsfw.com
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    8 months ago

    … just make sure you don’t light the grass or your neighbor’s house on fire

    • I_am_10_squirrels@beehaw.org
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      8 months ago

      What if my neighbors are ants?

      (I’ve never actually used a magnifying glass on ants and I don’t plan to start, it’s just the trope)

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