... -time flyers take it. Now it's time for the aircraft to fly a series of parabolas. This flight action will provide approximately 25 seconds of weightlessness at the top of each parabola. This series usually consists of 30 parabolas providing weightlessness, one giving a lunar gravity experience, and one giving a Martian gravity experience. The aircraft peaks at approximately 34,000 feet then dives ... first weightless series gives a sense of falling for about three seconds. Screams and squeals are heard throughout the plane during the first parabola. Once the brain has rationalized that ...

• Word Count: 1414
• Approx Pages: 6
• Has Bibliography
• Grade Level: High School