Technology 5 - Zeppelins

Have you heard of zeppelins?
They are airships lifted by hydrogen or helium and moved by conventional propeller engines.
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Zeppelins were invented back in the 1930s and saw its maiden flights in 1936. [See comment by a reader on the first flights of Zeppelins below.] However, in the year after, it met with a disasater. Soon after, its use was abandoned. See the following video.
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However, there is some renewed interest to revive the zeppelin. Technology is now there to make it safer and helium gas can be used in place of the potentially explosive hydrogen.
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Given the high price of oil, zeppelin may get the necessary attention and interest to revolutionise air travel. They are quieter and can land on football fields, marshlands and even water. We may not even need airports anymore, especially in rural and remote villages, deserts and artic frozen sites. Isn't it cool?
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Taking it further, I found this technology and animation which claim to be able to make an aircraft fly just with helium and a dynamo. Listen to its explanations in the video...
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Someday, all these aircrafts will become reality, as all the Universal Laws that support the necessary technologies have always been there. We don't need to make any new Laws of Nature (not that we can). So, the Tao master said, "... that we seek the wealth within us... and when we have attained Tao, the heavens will bestow the physical wealth to us."

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Let's have a sneak preview of the future (?) :)

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