It is Professor Munakata's "reverse pyramid" strategy that prevents the megaliths from being dumped atop the dome of St Paul's Cathedral from a blimp.

正是宗方教授的“逆向金字塔”策略可以防止巨石被飞艇甩到圣保罗大教堂的圆顶上。

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The pressure of the helium inside a blimp is about the same as that of the air outside, so the gas does not rush out.

气球飞艇内部氦气的压力和外部气压相近，因而气体不会溢出。

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"We saw all this money funding a blimp, and thought, 'We really need this money for commercials,'" Lam says.

兰姆说：“我们一边看到所有这些捐款花在飞艇上，一边想：‘我们真地需要把这些钱用于商业方面。’”

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In 1911 American airship pioneer Melvin Vaniman built the Akron, a hydrogen-filled, Goodyear Blimp-size craft in which he and his crew intended to be the first to fly across the Atlantic.

FORBES: The long, loud history of hydrogen as a motor fuel.

Nowadays, behind Skunk Works' highly secure perimeter, engineers reportedly are working on the aviation wonders of tomorrow, including a lightweight cargo plane called the X-55A and a bizarre, blimp-like airship called the P-791 Hybrid Air Vehicle, which has special technology that allows it to take off and land just about anywhere.

CNN: Where planes go to die

We also watched sustainable transportation soar to new heights this week as the world's first solar-powered blimp prepares to fly across the English Channel.

ENGADGET: Inhabitat's Week in Green: a US team wins the Solar Decathlon!