this post was submitted on 17 Apr 2025
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In an experiment, one tube produced 440 microwatts. When the researchers used four tubes at once, they could power 12 LEDs for 20 seconds.

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[–] themurphy@lemmy.ml 1 points 6 days ago (1 children)

No, true.

But factoring CO2 emitted from manufacturing + transportation from factory to your house, it will be net negative in emission. Even from transportation alone.

[–] ilinamorato@lemmy.world 1 points 6 days ago (1 children)

Actually, Randall Munroe did the calculations for his "What If" series. It is net positive in cost over a long enough time, which means that it will eventually be net positive in emissions, assuming it lasts long enough.

[–] themurphy@lemmy.ml 1 points 6 days ago

Yeah, the line for when its net positive is key. Otherwise we cant really draw conclusions.