Children's Encyclopedia1976 |
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Resultats 1 - 3 de 6.
Pàgina 10
... plane is flying at 33,000 feet . The fast - flying Concorde is flying at 56,000 feet . There is not enough air for people to breathe at the height these planes fly at . So the planes have to take their own air supply with them . The ...
... plane is flying at 33,000 feet . The fast - flying Concorde is flying at 56,000 feet . There is not enough air for people to breathe at the height these planes fly at . So the planes have to take their own air supply with them . The ...
Pàgina 11
... plane . It can also travel over land . The hovercraft above is carrying cars and people at 62 miles per hour between ... planes have to be made of special metal that doesn't melt from the heat . When spacemen come back to earth in their ...
... plane . It can also travel over land . The hovercraft above is carrying cars and people at 62 miles per hour between ... planes have to be made of special metal that doesn't melt from the heat . When spacemen come back to earth in their ...
Pàgina 59
... plane rose a few feet into the air and stayed up for about 12 seconds . This flight by the Wright brothers was the first ever by a powered aircraft . In 1909 , Louis Bleriot became the first man to fly across the English Channel . The ...
... plane rose a few feet into the air and stayed up for about 12 seconds . This flight by the Wright brothers was the first ever by a powered aircraft . In 1909 , Louis Bleriot became the first man to fly across the English Channel . The ...
Altres edicions - Mostra-ho tot
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