Tuesday, September 2, 2014

Technology Then and Now


 Shortly after the Civil War in the 1860's, the most advanced  technology available were railroads, telegraphs, and telephones. Now, in 2014 we've progressed much more, and eventually replaced railroads with subways, telegraphs with texting, and old-fashioned rotary phones with greatly improved cell phones.
A map of railroad tracks in 1865
The Shinkansen (a Japanese bullet train)


The worlds fastest manned plane: SR 71 



A telegraph





A morse code chart













Texting: The primary form of communication for most people


an antique rotary phone

The smartphones of today

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