Zeppelins and blimps may look similar but have major differences, like zeppelins rigid airships, meaning they have an internal framework, blimps on the other hand are a nonrigid airship, meaning that it relies on gas to keep its shape also Blimps are much smaller than zeppelins, Zeppelins need to be big to work properly.
I also saw this picture when doing research about Zeppelins, so I know what is about.
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