what is space? - part 2 of 16. there is space everywhere - on and around the earth - all of which is occupied. space between the sun and earth is filled with light and heat. a filmed trip through space by helicopter and by rocket conveys the tremendous ex - 大英百科全書 個影片檔及 b 捲影像00:32
earth satellites: explorers of outer space - part 21 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:30
what is space? - part 7 of 16. there is space everywhere - on and around the earth - all of which is occupied. space between the sun and earth is filled with light and heat. a filmed trip through space by helicopter and by rocket conveys the tremendous ex - 大英百科全書 個影片檔及 b 捲影像00:36外太空
what is space? - part 6 of 16. there is space everywhere - on and around the earth - all of which is occupied. space between the sun and earth is filled with light and heat. a filmed trip through space by helicopter and by rocket conveys the tremendous ex - 大英百科全書 個影片檔及 b 捲影像00:33外太空
what is space? - part 5 of 16. there is space everywhere - on and around the earth - all of which is occupied. space between the sun and earth is filled with light and heat. a filmed trip through space by helicopter and by rocket conveys the tremendous ex - 大英百科全書 個影片檔及 b 捲影像00:34外太空
parasitism (parasitic flatworms) - part 10 of 28. traces the development of parasitic flatworms, showing several life-cycle stages that have rarely been photographed before, including blood flukes and tapeworms. defines predation, mutualism, internal and - 大英百科全書 個影片檔及 b 捲影像00:34
what is a fish? - part 38 of 39. illustrates the major types of fishes. shows the anatomy of a typical fish and demonstrates characteristic behavior patterns of various kinds of fishes. underwater photography is used to reveal behavior patterns such as c - 大英百科全書 個影片檔及 b 捲影像00:32
what is space? - part 16 of 16. there is space everywhere - on and around the earth - all of which is occupied. space between the sun and earth is filled with light and heat. a filmed trip through space by helicopter and by rocket conveys the tremendous e - 大英百科全書 個影片檔及 b 捲影像00:38
what is space? - part 15 of 16. there is space everywhere - on and around the earth - all of which is occupied. space between the sun and earth is filled with light and heat. a filmed trip through space by helicopter and by rocket conveys the tremendous e - 大英百科全書 個影片檔及 b 捲影像00:37
what is space? - part 4 of 16. there is space everywhere - on and around the earth - all of which is occupied. space between the sun and earth is filled with light and heat. a filmed trip through space by helicopter and by rocket conveys the tremendous ex - 大英百科全書 個影片檔及 b 捲影像00:30外太空
earth satellites: explorers of outer space - part 27 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:36外太空
earth satellites: explorers of outer space - part 26 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:38
earth satellites: explorers of outer space - part 25 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:34
earth satellites: explorers of outer space - part 19 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:33
earth satellites: explorers of outer space - part 18 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:33星球, 美國
earth satellites: explorers of outer space - part 17 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:36
earth satellites: explorers of outer space - part 16 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:32
earth satellites: explorers of outer space - part 14 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the p - 大英百科全書 個影片檔及 b 捲影像00:31美國
earth satellites: explorers of outer space - part 8 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the ph - 大英百科全書 個影片檔及 b 捲影像00:33地球, 外太空
earth satellites: explorers of outer space - part 6 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the ph - 大英百科全書 個影片檔及 b 捲影像00:30
earth satellites: explorers of outer space - part 5 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the ph - 大英百科全書 個影片檔及 b 捲影像00:35星球
earth satellites: explorers of outer space - part 4 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the ph - 大英百科全書 個影片檔及 b 捲影像00:30外太空
earth satellites: explorers of outer space - part 3 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the ph - 大英百科全書 個影片檔及 b 捲影像00:31星球, 地球
earth satellites: explorers of outer space - part 1 of 28. illustrates the basic principles of space exploration with earth satellites and discusses the present and future uses of such exploration. the film examines the structure of the atmosphere, the ph - 大英百科全書 個影片檔及 b 捲影像00:38外太空, 報紙頭條
what is a fish? - part 34 of 39. illustrates the major types of fishes. shows the anatomy of a typical fish and demonstrates characteristic behavior patterns of various kinds of fishes. underwater photography is used to reveal behavior patterns such as c - 大英百科全書 個影片檔及 b 捲影像00:30
what is a fish? - part 32 of 39. illustrates the major types of fishes. shows the anatomy of a typical fish and demonstrates characteristic behavior patterns of various kinds of fishes. underwater photography is used to reveal behavior patterns such as c - 大英百科全書 個影片檔及 b 捲影像00:35
what is uniform motion? - part 23 of 23. an object moving with a uniform motion moves in a straight line with a constant speed, covering equal distances in equal times - 大英百科全書 個影片檔及 b 捲影像00:21飛彈
what is uniform motion? - part 21 of 23. an object moving with a uniform motion moves in a straight line with a constant speed, covering equal distances in equal times - 大英百科全書 個影片檔及 b 捲影像00:38
what is uniform motion? - part 20 of 23. an object moving with a uniform motion moves in a straight line with a constant speed, covering equal distances in equal times - 大英百科全書 個影片檔及 b 捲影像00:29
what is uniform motion? - part 8 of 23. an object moving with a uniform motion moves in a straight line with a constant speed, covering equal distances in equal times - 大英百科全書 個影片檔及 b 捲影像00:35飛彈, 開車
encyclopaedia britannica films: what makes rain? educational film about meteorology. - 大英百科全書 個影片檔及 b 捲影像00:09
online encylopaedia wikipedia reaches tenth anniversary; england: london: university college london:intstudent studying in library reporter to... - 大英百科全書 個影片檔及 b 捲影像01:56
wikipedia shuts down in protest at us plans for new anti-piracy laws; england: london: london south bank university: perry library:inttwo female... - 大英百科全書 個影片檔及 b 捲影像01:43
very paragraph in encyclopedia with text on adolph zukor revealed line by line stating that he was innovative in the period between 1912 and 1915 /... - 大英百科全書 個影片檔及 b 捲影像01:18
cover of encyclopedia britannica / title page "encyclopedia britannica, a new survey of universal knowledge, volume 15 maryborough to mushet" / book... - 大英百科全書 個影片檔及 b 捲影像01:43
river tubers witnessed a spider dashing along the water's surface in central new jersey on saturday, august 9. this footage captured by victoria... - 大英百科全書 個影片檔及 b 捲影像00:07
what is a community? (2nd edition of our community) - part 4 of 31. a visual definition of two concepts: 1) a community is a group of people; 2) people live and work together to get the things they need. after seeing this documentary on a small town and a - 大英百科全書 個影片檔及 b 捲影像00:30美國
an airplane trip by jet (3rd edition) - part 19 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:30擁抱
an airplane trip by jet (3rd edition) - part 18 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:34飛機
an airplane trip by jet (3rd edition) - part 17 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:35空姐
an airplane trip by jet (3rd edition) - part 16 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:33飛機
an airplane trip by jet (3rd edition) - part 15 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:32空姐
an airplane trip by jet (3rd edition) - part 14 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:27空姐, 飛機
an airplane trip by jet (3rd edition) - part 13 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:35
an airplane trip by jet (3rd edition) - part 12 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:36空姐
an airplane trip by jet (3rd edition) - part 11 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:36飛機, 美國
an airplane trip by jet (3rd edition) - part 10 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner - 大英百科全書 個影片檔及 b 捲影像00:30飛機, 空姐
an airplane trip by jet (3rd edition) - part 9 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:32空姐, 飛機
an airplane trip by jet (3rd edition) - part 8 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:31
an airplane trip by jet (3rd edition) - part 7 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:34空姐
an airplane trip by jet (3rd edition) - part 6 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:31
an airplane trip by jet (3rd edition) - part 5 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:30飛機, 空姐
an airplane trip by jet (3rd edition) - part 4 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:31空姐
an airplane trip by jet (3rd edition) - part 3 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:39飛機
an airplane trip by jet (3rd edition) - part 2 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:20
an airplane trip by jet (3rd edition) - part 1 of 19. tells the story of a transcontinental jet flight showing personnel in the airport assisting passengers, while the ground and flight crews service the plane. offers views of a modern airport, jetliner e - 大英百科全書 個影片檔及 b 捲影像00:25飛機
explaining matter: molecules in motion - part 14 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:30氣球, 情緒壓力
explaining matter: molecules in motion - part 13 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:33
explaining matter: molecules in motion - part 12 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:27
explaining matter: molecules in motion - part 11 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:32
explaining matter: molecules in motion - part 10 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:32
explaining matter: molecules in motion - part 9 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:37情緒壓力
explaining matter: molecules in motion - part 8 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:28
explaining matter: molecules in motion - part 7 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:34
explaining matter: molecules in motion - part 6 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:25
explaining matter: molecules in motion - part 5 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:28
explaining matter: molecules in motion - part 4 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:38
explaining matter: molecules in motion - part 3 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:35
explaining matter: molecules in motion - part 2 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:28
explaining matter: molecules in motion - part 1 of 14. shows that the rate of molecular movement determines whether matter exists in a solid, liquid, or gaseous state. molecular movement is increased by heat and decreased by cold - 大英百科全書 個影片檔及 b 捲影像00:33
hamlet: the age of elizabeth - part 38 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:29
hamlet: the age of elizabeth - part 37 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:31
hamlet: the age of elizabeth - part 36 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:32
hamlet: the age of elizabeth - part 35 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:31
hamlet: the age of elizabeth - part 34 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:37
hamlet: the age of elizabeth - part 33 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:35
hamlet: the age of elizabeth - part 32 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:38
hamlet: the age of elizabeth - part 31 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:36
hamlet: the age of elizabeth - part 30 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:33
hamlet: the age of elizabeth - part 29 of 52. maynard mack introduces us to the classes and customs of the elizabethan age. he discusses the theatre, its conventions and audience, and describes their similarities and differences to those of the modern the - 大英百科全書 個影片檔及 b 捲影像00:31
