Difficulty: Challenger (Level 2)
Teapots are not just for pouring tea; some can also perform tricks. One example is the “two-heart pot”, also known as the “assassin’s teapot”.
It is believed to have been invented during the Ming dynasty in China. This is the time when drinking tea became important in Chinese culture.
What makes it unique?
This teapot features two separate chambers that allow someone to hold and pour two different liquids from the same pot.
While there is no evidence that assassins used this teapot to hurt anyone, it is easy to see how someone could use its unique design to cause trouble. For example, someone could add poison to one chamber and serve a drink that looks normal to an unsuspecting victim.
Understand the science
The assassin’s teapot is a cleverly designed vessel that uses air pressure to control whether a chamber’s contents are poured or stay inside the pot. The two chambers hold different liquids. Each chamber also has its own hidden vent hole (see graphic).
By covering the vent holes or leaving them open, the pourer can control which chamber releases liquid. Assassins could make it seem like they were drinking the same liquid as their victim. This allows them to do their dirty work without being caught.
A fun idea
The clever design of the assassin’s teapot shows the intelligence and creativity of ancient artisans.
Magicians also use the teapot to make it seem like they are magically switching between two drinks. Try surprising your friends by serving them tea from one chamber and milk from the other.
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