https://www.youtube.com/watch?v=zOqyUWD0Ha8

https://www.youtube.com/watch?v=A06uShMWLNk

Устройство гальванометра 

https://www.youtube.com/watch?v=k3C5VR_py2E

https://www.youtube.com/watch?v=U4b9nj3LjK8

https://www.youtube.com/watch?v=svKQao01iF4

https://www.youtube.com/watch?v=hXrRv1XgIb4

Сборка электрофорной машины 9 шагов  

https://www.youtube.com/watch?v=IiDJIqwnPjw&list=PLMDLQSj1pGbtU2_yBq8UsJAztF5vXvS5N&index=1