How does a spinning top stay up?

[@k19-r1l]

good job G.

[@waneigg1846]

Thank you very much!

[@EddyCheung009]

Thank you for the lecture

[@waneigg1846]

You are very welcome!

[@appley1813]

The skillful interpretations of rotation motion and first-order differential equation by two-forms are truly impressive. Keep up the great work!

[@waneigg1846]

Thanks Kenny!😀

[@chriswong4002]

又有新片睇，yeah ~
咁一架直線行駛緊嘅單車，佢能夠平衡，都會係因為角動量嗎？

[@waneigg1846]

多謝支持！
單車呢個問題就真係複雜好多，因為佢識轉彎。據我所知進動的確有啲效果，但係好細。簡單講，單車嘅穩定性來自「counter steering」：當單車向右邊打側嘅時候，佢之後會自己轉返去左邊；當單車向左邊打側嘅時候，佢之後會自己轉返去右邊，咁佢就可以維持穩定。

[@AlbinoTigerBarb]

Professor Luis sure is an experimentalist!

[@waneigg1846]

And a very good one at that!

[@EdwardTrain]

nice

[@waneigg1846]

Thanks! :D

[@開朗的網友-h8z]

你可以嘗試一'個月一條片，咁樣質素會好啲

[@waneigg1846]

多謝你嘅提議😄物理讀咗好耐，但係剪片都仍然係新手，要繼續學習！

[@ttycho0]

oh I see~

[@waneigg1846]

多謝支持！