A toll free phone number for InterContinental Hotels Group (IHG) Worldwide Reservations from the United States or Canada is 888-640-1895. Simply pick up your telephone and call the toll free phone number of 888-640-1895 to call the InterContinental Hotels Group (IHG) for worldwide reservations from the United States or Canada.
How is the procedure performed? Gastric balloon is placed into the stomach through the mouth with the help of a gastroscope that goes through the mouth and into the stomach. The balloon is then filled with 500-700 ml of fluid (saline) and a blue dye. The procedure is performed under sedation and takes 15-20 minutes.
Calculating Altitude. In order to calculate how high a balloon could go before popping, you need to calculate the density of a helium balloon that has a radius of 0.1143 mm. Calculate the volume of the balloon using the formula for the volume of a sphere; then use the volume to calculate the density.n 1987, a British man, Ian Ashpole, set the reported world record for highest helium-balloon flight. Using 400 helium balloons with radii of one foot, he achieved the height of one mile, 1,575 yards without any of the balloons popping. This figure is the highest recorded altitude of a helium balloon.