3 ms·
What's the type of paper called that he puts on the motor at the 2:15 mark? Doesn't look like simple iron dust.
by kaffeemitsahne 9y ago
What's the type of paper called that he puts on the motor at the 2:15 mark? Doesn't look like simple iron dust.
- jakeogh 9y agohttps://en.wikipedia.org/wiki/Magnetic_field_viewing_film https://en.wikipedia.org/wiki/Magnetic_field_viewing_film
- lostapathy 9y agoMagnetic field viewing film http://a.co/5s8f0Kz http://a.co/5s8f0Kz