Siphon cup

Siphon cup
Is it only a cup?
No!
It is a magical cup!
Siphon Cup, also known as nine dragon fair cup, produced in China's Song Dynasty.
The magic of the cup is that it does not leak if the water(or vine) in the cup is not full, and it will leak out when the water in the cup is full.
The secret is that there is a siphon tube in the cup, which siphons form as the water diffuses across the siphon and the water in the cup leaks.
This cup I designed , siphon tube cleverly hidden in the cup handle!
You can use it to make magic, can also be used to science class, very interesting.
Siphon cup tells us a truth, that is Pride hurts, modesty benefits.
虹吸杯
虹吸杯，又称九龙公道杯，产于中国宋朝。
这个杯子的神奇这处在于，如果杯中的水（酒）不满时，它是不漏的，而当杯中的水（酒）满时，就一滴不剩了。
秘密是，杯中有一根虹吸管，当水漫过虹吸管时，虹吸形成，杯中的水漏光。
我设计的这个杯子，虹吸管巧妙地隐藏在杯把中！
你可以用它来变魔术，也可以用来上科学课，很有趣。
虹吸杯告诉我们一个道理，满招损，谦受益。