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The struggles of weighing a magnet | Density = Grade? (Patreon)

Published:
2021-02-26 18:46:01
Imported:
2026-06
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Content

Sometimes, well... often I get some crazy ideas that I just should leave alone. This may be one of them.

I would like to test if there is any correlation between a magnet's grade and density. That would be so convenient and make it easier for anyone to test the seller's claim on a magnet's grade.

Sounds easy to test the density of a magnet, right? Not in my experience... Here's my video on it.


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The STRUGGLES of Weighing a Magnet | Density = Grade?

The grade of a magnet is an important attribute. It determines strength and price, but can you test it yourself at home using something as simple as a scale? Is there a correlation between the density of a magnet and its grade? Is it even easy to measure the density of a magnet? Let's find out! The F71 Teslameter donated earlier by Lake Shore Cryotronics: https://www.lakeshore.com/products/Gaussmeters/F71-F41-teslameters/Pages/Overview.aspx 200x50 mm disc magnet, 50 mm sphere magnet and one of the 150x50 mm disc magnets donated earlier by https://www.magnetportal.de/ My Patreon-page: https://www.patreon.com/Brainiac75 Video on determining grade with gaussmeter: https://www.youtube.com/watch?v=q9YkbTwFRkk Video on Earth's magnetic field: https://youtu.be/Of-_BBHYwRE Video tip: Monster magnet meets flames...: https://youtu.be/dX2R4hRAYMc Did you miss one of my videos?: https://www.youtube.com/user/brainiac75/videos FULL MUSIC CREDITS Time code: 0:01 "Darkness is Coming" Kevin MacLeod (incompetech.com) ISRC: USUAN1100584 Looped by me to fit the video. Time code: 0:54 "Lightless Dawn" Kevin MacLeod (incompetech.com) ISRC: USUAN1100655 Time code: 2:23 "Sunshine" Kevin MacLeod (incompetech.com) ISRC: USUAN1100517 Time code: 5:17 "Perspectives" Kevin MacLeod (incompetech.com) ISRC: USUAN1300027 All music above licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ Time code: 7:59 Mix of two tracks: 1) The Shimmering by fran_ky (freesound.org/s/237363) Licensed under Creative Commons 0 license 2) "Spacial Harvest" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ ISRC: USUAN1100653 #DensityMagnet #GradeMagnet #Brainiac75

Comments

Brainiac75

Tips for consistent results in the strength test, I didn't have time to include in the video (February is short!): - Place the magnets in exactly the place on the scale. Mark the spot. - Place the magnets at exactly the same distance to the plate. That is: Use the exact same spacer for each measurement. Same weight and distance. - Measure several times and switch poles between measurements. - Make sure there isn't any metal close by to affect the measurements. Even a screw or nail in the table can make a difference. - Use the same battery in the scale for all measurements. Different batteries may attract the magnet more or less. - Repeat on another day. Are the results consistent?