Name: 🔬#MESExperiments 36: Faraday's Paradox using Ferrofluid (and Iron Filings)
Uploaded: 2024-04-13T05:15:39+00:00
Duration: 4 min 59 s
Description: In #MESExperiments 36 I further demonstrate Faraday's Paradox, this time using Ferrofluid and showing that a magnet rotating about its polar axis has no effect on the fluid. I also perform additional

1 month ago

275

Science Education ferrofluid magnet mes experiments experiments science magnetism magnetic sand iron filings magnetic fluid

In #MESExperiments 36 I further demonstrate Faraday's Paradox, this time using Ferrofluid and showing that a magnet rotating about its polar axis has no effect on the fluid. I also perform additional experiments using iron filings using more complex patterns to show that they are still not affected by the rotating magnet. This is a follow-up to Experiment 35 which I performed similar experiments but with the magnet at a distance away from the iron filings. According to Michael Faraday's theory on magnetism, the magnetic field "lines of force" should be moving and cutting through the iron filings and they thus should experience an electromotive force (EMF), which paradoxically don't. This suggests the magnetic field does not rotate. Further information on Faraday's Paradox as well as FractalWoman's magnetic isopotentials explanation for it can be seen in the video description of Experiment 35: https://youtu.be/hotOO9bwrrA

The original unedited version of this experiment can be seen here: https://youtu.be/mJjDasSSqHo

Timestamps:

- Placing a magnet underneath ferrofluid: 0:00
- Rotating the magnet has no effect on ferrofluid: 0:16
- Rotating the magnet with a drill has no significant effect on ferrofluid: 0:29
- ADDITIONAL EXPERIMENTS with Iron Filings: 1:06
- Rotating a magnet underneath has no effect on iron filings: 1:16
- No effect even if iron filings pattern is complex: 1:25
- No effect when rotated with a drill: 2:07
- Repeating experiment with iron filings on a tray: 2:41
- Rotating magnet still has no effect on iron filings: 3:06
- Same result with complex iron filings pattern on a tray: 3:21
- Same result when rotated with a drill: 4:02
- WARNING: Be careful when working with ferrofluid! 4:54

Stay tuned for #MESExperiments 37...

View experiment screenshots and more experiments below:

- Screenshots of the Experiment: https://peakd.com/hive-128780/@mes/hdmneruh
- #MESExperiments video series: https://www.youtube.com/playlist?list=PLai3U8-WIK0HUHoank-Lj9q6RGAS51QRh
- Hive playlist: https://peakd.com/mesexperiments/@mes/list
- DRAFT #MESExperiments video series: https://mes.fm/experiments-draft