太阳能飞机
-
这架飞机？它能连续飞行118小时
Here’s a riddle for you: A plane flew for five days and nights, staying airborne for 118 hours. But it didn’t use a single drop of fuel. How? Bertrand Piccard explains.
Here’s a riddle for you: A plane flew for five days and nights, staying airborne for 118 hours. But it didn’t use a single drop of fuel. How? Bertrand Piccard explains.
