Mercury Seven summon the last group. The tests included spending hours on treadmills and tilt tables, submerging their feet in ice water, three doses of castor oil, and five enemas. Six candidates were rejected as too tall for the planned spacecraft. Another 33 failed or dropped out during the first phase of exams. Four more refused to take part in the second round of tests, which eliminated eight more candidates, leaving 18. From the 18, the first seven NASA astronauts were chosen, each a "superb physical specimen" with an IQ above 130, and the ability to function well both as part of
Group of Seven Group of Seven The Group of Seven (G7) is a group consisting of Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States. These countries, with the seven largest advanced economies in the world, represent 58% of the global net wealth ($317 trillion). The G7 countries also represent more than 46% of the global gross domestic product (GDP) based on nominal values, and more than 32% of the global GDP based on purchasing power parity. The European Union is also represented at the G7 summit. The concept of a forum for the world's major industrialized countries emerged before