SIGN the GUESTBOOK. Hickam AFB passenger terminal has two overhead flat screen monitors, your sun clock and their arrival/departure. I was stranded there for two days and was in awe at the accuaracy of your site. I retrived your site now to plan communications with contacts in Japan.
4 - The ideal wind speed for hot air balloon flights - To provide the best conditions for a safe balloon flight landing the maximum surface wind speed on the day of the balloon ride must not exceed 10 miles an hour.
1 Hot air balloon is an oldest type of flying machine. It has an envelope that holds heated air and, most often, a gondola or a wicker basket underneath it which carries passengers. Hot air is lighter than cold which lifts the balloon.  Gas balloon is filled with a gas that is lighter than air - helium or hydrogen.