The topic of 2023 Alipay Ant Manor on September 20 has been updated. Today’s topic is: The flying principle of a helicopter is similar to which of the following toys? What is the correct answer? Many friends may not know yet. The following is the correct answer for everyone to share, I hope it can help you.
[ Summary of answers to Ant Manor ]
The flying principle of a helicopter is similar to which of the following toys?
Answer: bamboo dragonfly
Analysis: The helicopter was invented after the Chinese bamboo dragonfly. Bamboo dragonflies are also called flying spirals and "Chinese spinning tops". They are a strange invention of our ancestors. Although modern helicopters are thousands of times more complex than bamboo dragonflies, their flight principles are similar to those of bamboo dragonflies. The rotor of a modern helicopter is like the blade of a bamboo dragonfly, the rotor shaft is like the thin bamboo stick of the bamboo dragonfly, and the engine that drives the rotor is like our hands rubbing the bamboo stick hard.
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