Why is it, when you try to wipe away drops of blood off of a surface, it leaves a behind a thin ring around it which is harder to clean? 1.07K viewsJanuary 3, 2024 Question91.81K February 13, 2020 0 Comments Why is it, when you try to wipe away drops of blood off of a surface, it leaves a behind a thin ring around it which is harder to clean? In: Physics 17 Answers ActiveNewestOldest Anonymous Posted February 14, 2020 0 Comments I am no scientist but it makes sense that the edges would dry first. Even if the top of the middle of a blood drop dries out, the bottom of the middle would still be fluid. Hope that makes sense. & yes blood is sticky. Protein is sticky stuff. You are viewing 1 out of 17 answers, click here to view all answers. Register or Login
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