Philadelphia Reflections

The musings of a physician who has served the community for over six decades

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Chronological Philadelphia

This topic arranges Philadelphia history chronologically. Website design allows the user to jump around as impulse strikes, and the speed of the Internet makes any rearrangement seem like one continuous book. (Under Construction, please return later)

Physicists tell us electricity travels through a wire at the speed of light, 186,000 miles per second. However, electrons do not move through a wire at anything like that speed. The paradox is explained as bumping the first electron in the wire, and then it bumps the second, and so on until the last electron is bumped off the other end. The speed of this bumping travels from one end to the other at the speed of light, so we have taken to saying that "electricity" moves at the speed of light. In any event, this fact makes it possible to store files and images all over the world, and yet moving between them seems instantaneous. That's how this particular website conveys the illusion of seamless connection between files, as if the reader were scrolling along a huge roll of paper. The hesitations between pages go past too rapidly for the human eye to detect them. We are therefore able to arrange the pages of Philadelphia Reflections chronologically and provide seamless "jumps" between selected pages, pausing mainly to locate the files. The result is a new book of the reader's own design, seamlessly presenting a scroll of only what the reader requested. We have also chosen, however, to pause deliberately between episodes to allow time for the reader to choose where to go, and double-click on the title of the next destination. Provision is made for readers to enter comments, but unfortunately vandals like to use comment sections for offensive inclusions. Therefore, comments do not appear until graffiti have been lightly expurgated.


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