Coffee ā on Nostr: š° On this day š¹1954 Bell labs announces the first solar battery made from ...
š° On this day š¹1954
Bell labs announces the first solar battery made from silicon. It has about 6% efficiency.
#OTD | #PlebChain | #Nostr
Published at
2025-04-25 00:07:12 GMTEvent JSON
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