when the tube fills with oil it becomes fully invisible Submitted by Pedrao_zao t3_11a76qq on February 23, 2023 at 8:02 PM in mildlyinteresting 52 comments 1,585
ImgurIsLeaking t1_j9qemgm wrote on February 23, 2023 at 8:48 PM Achshually it's invisible in the first pic too, we just see the air bubble that's trapped inside of it! Permalink 6
when the tube fills with oil it becomes fully invisible
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