Great animation. helps a lot to understand. I'm gonna pass the exam thanks to you:)

Well explained. Thank you

That video was absolutely amazing, i love thes types of in-depth videos. Thank you! Also have a friend from South Korea that i am studying physical therapy with atm, since yall are from south korea as well hah

Excellent animation and explanation! Thank you!

Excellent video! brilliant, thanks a lot.

Very great animation , exceptional , I tried to learn previosly mechanism but could not, but this video greatly helped to me to understand the mecahnism.

exceptionally good video.great job

Brilliant animation!!!!!

Brilliant video !!

Amazing, well done

Great animation..it's still an understanding topic..well explained

Amazing thanks!

Fascinating video.

great video it helped me a lot with my exam thank you

Thanks a lot! It was very hard to understand from the books.

Thanks from México

This is fantastic

this is great thanks

thank you so much!!!

이해하기 정말 좋습니다😊

awesome!

Exceptional animation

I have also my own youtube channel, I wish to collobarate with you , may be we can change ideas.

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Alguem me disse tua filha vai ficar assim èu digo porque voçes q fica me ameasando não vai a Deus vao a Deus. Saco eu não tenho culpa q voçes nao sabe jogar deixa meus filhos em paz viver a vida deles el paz e joga comingo vao la atrás desses homems. Fica na posiçao q napoleao perdeu a guerra. Ate porca sou Lenbra é assim q eles me ver e eu so me defendo mas estou triste.por serem bobas e bobos