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Apa: A Dialog of Spacetime

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Some day in the near future, people will use same language and they may keep or quit their mother tongues. This book is prepared for that day. Based on Pinyin system the author combined the International Phonetic Alphabet (IPA) of English and Chinese into 47 symbols of Auxiliary Phonetic Alphabet (APA). The author also worried about the future of science. Most people know that science is based on measurements. To make a valid measurement people must record related event time and event locat...