European Astronaut Centre European Astronaut Centre The European Astronaut Centre (EAC) (German: Europäisches Astronautenzentrum, French: Centre des astronautes européens), is an establishment of the European Space Agency and home of the European Astronaut Corps. It is near to Cologne, Germany, and is subdivided into six separate arms, these being Astronaut Training, Space Medicine, Astronaut Management, Human Exploration of the Moon as part of the Spaceship EAC initiative and Communications. It provides training facilities for European and international partner astronauts (including a neutral buoyancy pool), particularly regarding ESA hardware for the ISS such as Columbus and formerly the ATV. The overall European Astronaut Centre
Chinese as a foreign language neutral (轻声，denoted as no-mark in Pinyin) although the official name of the tones is Four Tones. Many other Chinese dialects have more, for example, Cantonese has six (often numbered as nine, but three are duplicates). In most Western languages, tones are only used to express emphasis or emotion, not to distinguish meanings as in Chinese. A French Jesuit, in a letter, relates how the Chinese tones cause a problem for understanding: Moser also stated that tones were a contributing factor to the difficulty of learning Chinese, partly because it is difficult for non-native learners to know how to convey emotion