• Soggytoast@lemm.ee
    link
    fedilink
    arrow-up
    11
    ·
    6 months ago

    They’re under a pretty high vacuum inside, so the flat glass has to be thicker to be strong enough

    • Pulptastic
      link
      fedilink
      English
      arrow-up
      3
      ·
      6 months ago

      Yeah I suspect there’s some lensing going on in there too which adds more weight.