JF Ptak Science Books Post 2166
Following this blog's series on the History of Holes and the History of Dots will be a new series: the History of Tubes, the first note of which is on the flying tubes of TomorrowWorld. Today's installment is a simple picture post:

[Source: http://www.dailygalaxy.com/photos/uncategorized/2007/07/17/science_fiction_science_fact.jpg]
[Source: http://static.flickr.com/100/258214584_3ce3697ab2.jpg]
[Source:http://static.flickr.com/59/188844208_60a18e94d7.jpg]
![[tow_1940summer.jpg]](https://lh5.ggpht.com/abramsv/R4fcwUKUlTI/AAAAAAAADBI/Xu7s8ESZMyM/s1600/tow_1940summer.jpg)
[Source:http://lh5.ggpht.com/abramsv/R4fcwUKUlTI/AAAAAAAADBI/Xu7s8ESZMyM/s1600/tow_1940summer.jpg]


![[34754tutfgjdgdf.jpg]](https://lh6.ggpht.com/_hVOW2U7K4-M/ST2rP9fpFfI/AAAAAAAAugY/u95RIMSHH9g/s1600/34754tutfgjdgdf.jpg)






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