KAPPA738
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Longest Non-Mechanical Top Spin
I cannot understand English, either. Although translation software is used, I cannot read the cause of your misunderstanding. You do not need to understand Japanese. However, you need to understand the principle of a self-righting dharma doll top. If it becomes so, you can find the common feature of a self-righting dharma doll phenomenon for the top of Professor Black, JAXA, and Ceder Ben.
Longest Non-Mechanical Top Spin
Thank you, but I know not needing a magnet. https://www.youtube.com/watch?v=Eqind9bxROQ#t=61
Longest Non-Mechanical Top Spin
https://www.youtube.com/watch?v=QkNWB1tcDqk
Longest Non-Mechanical Top Spin
I think that the structure of Professor Black's 24 min spin is what is not a magnet and is based on a self-righting dharma doll.
Longest Non-Mechanical Top Spin
残念ながら昨年2月にkoma taisenに参戦して以後、今年も参戦できません。 koma taisen参加のコマのレプリカなどはkoma taisen会場やオンラインで販売されています。 http://store-m.jp/