Blimps

I wonder why blimps were ever invented. They seem so pointless, they are very dangerous which can be proved when Hindenburg blew up because they used an explosive gas. After that they changed gases. This doesn't change the fact that Blimps are slow and cost ineffective. They should have created a better design, that was more effective. This could be that they could be powered by more engines or if when they used planes by more planes. Also I think that this book should have included planes rather than blimps. Planes are fast and are normally more comfortable except when there is turbulence.