Воздушные шары

Материал из Клуб Слідопитів

Версия 19:47, 16 ноября 2009

1. Какую роль сыграли следующие люди в разработке воздушных шаров:
   • Жозеф-Мишель и Жак-Этьен Монгольфье
   • Жан-Франсуа Пилатр де Розье и маркиз Франсуа Лоран д'Арланд.
   • Жак Александр Сезар Шарль и Мари Ноэль Робер.
   • Бен Абруццо, Макси Андерсон, and Ларри Ньюман
   • Бертран Пиккар и Брайен Джоунс
2. Расскажите о принципе Архимеда, и кратка опишите как он применяется для следующих :
   • A piece of cork floating in a bowl of water.
   • A ship floating in the ocean
   • A hot air balloon floating in the atmosphere
3. Using a textbook of Chemistry, or a reference book of scientific tables, draw up a simple table showing the composition of air by weight and by volume.
4. Draw up a simple table showing a comparison of the atomic number, atomic weight, and density of hydrogen, helium, nitrogen, and oxygen.
5. Name two gases that are used in flying gas filled balloons.
6. Explain how heat/temperature affects the density of air, and how this applies to flying hot air balloons.
7. Explain the role of each of the following in the structure and flying of a hot air balloon.
   • Envelope
   • Support structure
   • Throat
   • Fuel source
8. Name two materials that may be used for the envelope of a hot air balloon, and compare the advantages each cords because of its properties.
9. Name two materials that may be used for the envelope of a hot air balloon, and compare the advantages each cords because of its properties.
   • Military campaigns
   • Scientific research
10. At what time of the day do most sport balloon flights take place? Why?
11. Describe how a pilot controls the vertical movement of
    • A hot air balloon
    • A gas filled balloon
12. Describe how a pilot controls the lateral or horizontal movement of a flying balloon.
13. Build to completion one model hot air balloon (or two if working in pairs).