在20世纪60年代早期，研究人员试图将火箭尾部的电线发射到雷云中，以便于为这些雷云产生的巨大电荷建立一个简单的放电路径。

In the early 1960s, researchers tried firing rockets trailing wires into thunderclouds to set up an easy discharge path for the huge electric charges that these clouds generate.

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这些芭比娃娃的主人是荷兰女时装设计伊捷·雷贝尔。在上世纪60年代早期，雷贝尔买了第一个芭比娃娃送给女儿玛里娜。

It was started in the early 1960s by Ietje Raebel, who bought her first Barbie for daughter Marina.

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