Tran Duy Nam 🎩
@tranduynam10
gm (good math!) https://www.brunogavranovic.com/posts/2022-02-10-optics-vs-lenses-operationally.html
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Gladysy
@gladysy
💞 Damn it! Hình ảnh/video minh họa rất bắt mắt!
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