File:Ferrofluid Magnet under glass.jpg
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Original file (2,048 × 1,536 pixels, file size: 516 KB, MIME type: image/jpeg)
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| Description |
English: Ferrofluid on a reflective glass plate under the influence of a strong/steep magnetic field.
עברית: he:נוזל מגנטי אשר נמצא על זכוכית משקפת תחת השפעת מגנט חזק.
Русский: Ферромагнитная жидкость на стекле под воздействием магнита под стеклом. |
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| Date | ||||
| Source | Own work | |||
| Author | Gregory F. Maxwell <[email protected]> PGP:0xB0413BFA | |||
| Permission (Reusing this file) |
I, the copyright holder of this work, hereby publish it under the following license:
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| Other versions |
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Ferrofluid, a paramagnetic fluid composed of nanoscale ferromagnetic particles suspended in a carrier fluid, was placed onto a glass plate. The edges of the glass plate are visible at the bottom of the image. A powerful N40 neodymium magnet was placed under the glass along with an iron rod to steepen the field. Spikes form, in a phenomenon called normal field instability, where the magnetic forces are great enough to overcome gravity and surface tension to align the fluid in a magnetically ideal manner.
- Equipment
- Canon 5D
- 10mm/f2.85 Macro at f/200
- ISO 100, 10 second exposure
- Background illumination provided by 2400watts of 65K high-cri fluorescent. Highlight illumination by photoflash reflected off a 40ft x 15 ft white matt panel.
- Processing
- RAW to 16bit conversion with dcraw
- Slight rotation
- Cropping to 4:3 aspect
- Gain to bring background to white.
- Minor cloning to remove sensor dust from background area
- Scaled to 2048x1536
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:03, 1 August 2006 | 2,048 × 1,536 (516 KB) | Gmaxwell | Now high resolution. | |
| 04:09, 13 July 2006 | 800 × 600 (109 KB) | Gmaxwell | Reverted to earlier revision | ||
| 04:07, 13 July 2006 | 800 × 601 (114 KB) | Gmaxwell | Reverted to earlier revision | ||
| 02:17, 12 July 2006 | 800 × 600 (109 KB) | Gmaxwell | fix size so mediawiki doesn't crap it up. | ||
| 02:06, 12 July 2006 | 800 × 601 (114 KB) | Gmaxwell | {{Information |Description=Ferrofluid on glass, with a rare earth magnet. |Source=By uploader. |Date=2006-07-09 |Author=Gregory F. Maxwell |Permission=GFDL-1.2 only }} {{GFDL-1.2}} |
File usage
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Global file usage
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- Usage on cs.wikipedia.org
- Ferrofluid
- Usage on et.wikipedia.org
- Ferrovedelik
- Neodüümmagnet
- Usage on fr.wikipedia.org
- Ferrofluide
- Utilisateur:INSA-1A-gr2/Brouillon Ferrofluides
- Usage on fr.wikibooks.org
- Expériences de physique/Un ferrofluide en tube à essais, en soixante minutes
- Usage on hy.wikipedia.org
- Մասնակից:DaemonDice/M:Cookies01
- Usage on it.wikipedia.org
- Ferrofluido
- Usage on wikimania2006.wikimedia.org
- Wikimania Awards/Photography - Objects