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simple electric bell circuit

santimiranti (28)in #science-education • 9 years ago

the 3rd state junior high school student workshop

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#photography #steemit #indonesia #steepshot
9 years ago in #science-education by santimiranti (28)
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    7 votes
    • + muhammadarsyad
    • + santimiranti
    • + bossundonno
    • + rickner
    • + zulkhairi19
    • + razali1
    • + rayasfara
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