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\nDoes Obsidian Really Form the Sharpest Edge?\n

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\nIn this video, we investigate how sharp different edges are by attempting to split a single hair. The results from this are unexpected, so we try to understand the problem better by building a sharpness tester and even measuring the edge...\nIn this video, we investigate how sharp different edges are by attempting to split a single hair. The results from this are unexpected, so we try to understand the problem better by building a sharpness tester and even measuring the edge with an atomic force microscope.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Grade
Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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Date
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2023
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Audiences
For Teacher Use
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Concepts

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edges, hair, wood, engineering
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Additional Tags

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machnining, science, obsidian, knife, micrometer stage, cutting edge, blue tack, razor blade, alistair managed, lead disk, sharpest edge, alistair, edge, probe, lead, material, imprint, microscope, chisel, thin, setup, fibrils, made, flint, charlie, measuring, piece, wire, video
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Educator Ratings

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\n\nShow resource details\n
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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Does Obsidian Really Form the Sharpest Edge?\" href=\"/subscription/new\">\"Does\n\n
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