File:Kolbenluftpumpe hg.jpg
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Size of this preview: 717 × 599 pixels. Other resolutions: 287 × 240 pixels | 574 × 480 pixels | 919 × 768 pixels | 1,225 × 1,024 pixels | 2,180 × 1,822 pixels.
Original file (2,180 × 1,822 pixels, file size: 714 KB, MIME type: image/jpeg)
| Description |
English: Vacuum pump and bell jar for vacuum experiments, used in science education during the early 20th century, on display in the Schulhistorische Sammlung (School Historical Museum), Bremerhaven, Germany. |
| Date | |
| Source | own work, Schulhistorische Sammlung Bremerhaven |
| Author | Hannes Grobe (talk) |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:24, 25 August 2008 | | 2,180 × 1,822 (714 KB) | wikimediacommons>Hgrobe | {{Information |Description=Air pump to demonstrate vacuum |Source=own work, Schulhistorische Sammlung Bremerhaven |Date=2008-08-25 |Author=~~~ |Permission=Attribution 2.5 |other_versions= }} {{cc-by-3.0}} Category:Physical_phenomena |
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