When we scrapped my daughter's electric scooter I kept various parts including the speedometer. Tonight I took it apart so I could look at the magnetic. This video is rather long so I have also done a short version with just the final 2 minutes    • Vehicle Speedometer Disassembly SHORT  

Mike Rogers had commented that a mechanical speedometer or tachometer works on this principle and I found a couple of YouTube videos on that subject. This one is an animation    • Animation | How speedometer works | E...   and this one is a full disassembly of an old speedo    • Disassembly and inspection of a Magne...  

https://en.wikipedia.org/wiki/Lenz%27...
http://regentsprep.org/regents/physic...
My previous videos on this subject
Replicating another one of Lidmotor's projects Lenz's Law    • Replicating another one of Lidmotor's...  
Short Teaser Replicating another one of Lidmotors projects Lenz's Law    • Short Teaser  Replicating another on...  

Filmed using Canon Powershot SX60 HS
Edited using Serif MoviePlus X6

Here is a selection of related playlists and videos
Lidmotor's "Riding A Magnetic Breeze"    • Riding A Magnetic Breeze  
Veritasium's World's First Electric Generator    • World's First Electric Generator  
More Magnets Sixty Symbols    • More Magnets  Sixty Symbols  

Disassembly playlist    • Disassembly/Tear down  
Lenz's Law inspired projects    • Lenz's Law inspired projects  
Magnetism playlist    • Magnets and magnetism  
Simple electronic projects playlist    • Simple Electronic Projects  
Simple projects playlist    • Simple projects  
Friends and Family Gold or Garbage? playlist    • Friends and Family  Gold or Garbage?  

My Channels
GrandadIsAnOldMan https://bit.ly/2T3x6RX
GrandadsOtherChannel https://bit.ly/2yW5uYb
Put a rubber band on it https://bit.ly/2T3OF4j
Number4 https://bit.ly/3cG4fuZ
You can help keep my channel running with coffee and cakes at Patreon https://bit.ly/35XFasL
If you don't like Patreon you use Kofi instead https://bit.ly/3dNusI9
Merchandise on RedBubble https://rdbl.co/2yJv56H
Merchandise on Cotton Cart https://bit.ly/2xZymOP
Merchandise on Teespring https://bit.ly/2Zby02T
Twitter https://bit.ly/3fMUgFN
FaceBook https://bit.ly/3csbruk
Pinterest https://bit.ly/2WTuuXP
Instagram https://bit.ly/2WPLa2F
Thingiverse https://bit.ly/35WfSem
Tinkercad https://bit.ly/2WUrM4q

Oldest videos https://bit.ly/2Z4RBl1
Most Popular https://bit.ly/3cx0lUP
Newest videos https://bit.ly/2T3TryJ
Playlists https://bit.ly/3dI9mdV
I have thousands of videos on YouTube, to find one try my search guides    • YouTube App Search and Video Description   or    • How to search for my YouTube Videos  

I am happy for you to show my content as part of your own projects or in public settings as long as you clearly credit GrandadIsAnOldMan. Do not copy my video content and pass it off as your own.

*Affiliate links may generate an income for me

#GrandadIsAnOldMan #GrandadsOtherChannel #Putarubberbandonit #Number4