Boeing has flown a Dimona motor glider with an electric motor powered by a fuel cell.

波音公司试飞了一架利用燃料电池做动力来驱动电动机的迪莫诺动力滑翔机。

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When an insect brushes against them, this triggers a tiny electric charge, which travels down tunnels in the leaf and opens up pores in the tear's cell membranes.

当一只昆虫与它们擦身而过时，就会触发一种微小的电荷，电荷沿着树叶里的隧道向下移动，并打开泪液细胞膜上的小孔。

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Boeing has also flown a Dimona motor glider with an electric motor powered by a fuel cell.

波音公司也试飞了利用燃料电池做动力来驱动电动机的动力滑翔机。

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To have a useful range of 480km (300 miles) or so, an electric car using a fuel cell instead of a battery pack would require around 9kg (20 pounds) of hydrogen.

ECONOMIST: Tech.view

This begins with a stimulus, such as an electric shock, that promotes the fusion of an egg cell that has had its nucleus removed with a donor cell whose nucleus it will assume.

ECONOMIST: Cloning around

The German Aerospace Centre has tested this idea in an aircraft using a fuel cell to power two electric motors built into the hub of an aircraft nose wheel.

ECONOMIST: A cheaper, cleaner way for the long taxi to the runway