Δαφνη Ευτυχια Αρθουρος

Oh my. Remember that BLIMP HORROR story I posted a link to a while back? Well here's someone trying to make indoor blimps do something useful: Helio-Courier: Automatic inter-office delivery with a helium blimp.

"Helium is lighter than air. But not that much lighter than air. A modest size blimp such as mine (roughly 75 cm in diameter) provides only a few ounces of lift--barely enough for a small motor and battery. Therefore, I wanted to avoid adding any additional sensing or navigational equipment to the blimp itself. Instead, I augmented the environment of the office to track and control the blimp."