Sterling Engine & Phone Pen: !! ما هو المحرّك الجنيه الاسترليني و قلم هو تلفون

[@ps4gamerstv749]

Love the science

[@gaffardundar8714]

Keep going

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Like the talks

[@noflxlilov2880]

Nice episode

[@darkplays6711]

Great video

[@maxtvnttn88]

Love this channel

[@alperenaakomleksiz2415]

Like this one

[@Sataniststealer]

Want that pen

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Thanks for the info

[@umutyt5527]

They use it now for solar power

[@muzikrotasi9401]

Cool pen

[@unususlasim9981]

Nice

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mahdoumeh

[@skyline5759]

Well done

Awesome

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👍👍👍

[@KhalilSehnaoui]

❤❤❤