File:Bohrmehl (Schiefergestein).jpg
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Original file (2,992 × 2,992 pixels, file size: 3.92 MB, MIME type: image/jpeg)
Captions
Captions
A 4 mm drill bit in a piece of slate
Summary
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| Description |
Deutsch: Der Bohrer wurde mit einem Handbohrer in Drehung gesetzt. Der Schiefer war recht weich und ließ sich leicht durchbohren. Hier sieht man das Bohrmehl des Schiefers, eventull bei näherem Hinsehen auch Holzspäne von einer angebohrten darunterliegenden Holzplatte. Die Aufnahme entstand in der Mathe-AC Lernwerkstatt in Aachen. Die Quellseite ist: https://www.rhetos.de/html/lex/bohrmehl.htm |
| Date | |
| Source | Own work |
| Author | Rhetos |
Licensing
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I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:01, 4 February 2022 | | 2,992 × 2,992 (3.92 MB) | Rhetos (talk | contribs) | Uploaded own work with UploadWizard |
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