Snip from an article in today's New York Times about a slew of designers and firms developing new models of airships. These passenger-carrying aircraft float on the wind, rather than being propelled solely by fuel (more precise explanation here). And, ah, hopefully they don't blow up in the sky or whatever.

As the cost of fuel soars and the pressure mounts to reduce carbon dioxide emissions, several schemes for a new generation of airship are being considered by governments and private companies. "It's a romantic project," said Mr. Massaud, 45, sitting amid furniture designs in his Paris studio, "but then look at Jules Verne."

It has been more than 70 years since the giant Hindenburg zeppelin exploded in a spectacular fireball over Lakehurst, N.J., killing 36 crew members and passengers, abruptly ending an earlier age of airships. But because of new materials and sophisticated means of propulsion, a diverse cast of entrepreneurs is taking another look at the behemoths of the air.

Mr. Massaud, a designer of hotels in California and a stadium in Mexico, has not ironed out the technical details, nor has he found financiers or corporate backers for his project - to create a 690-foot zeppelin shaped like a whale, with a luxury hotel attached, that he has named Manned Cloud.

"A dirigible is something magical," said Jérôme Giacomoni, who was 25 when he founded Aerophile with a friend. "But most of the ideas are crazy."