[mbarillier]

hi — first post since the site upgrade so we’ll see how this goes ….
three practice scripts for coaching session:

1. Whether you’re young or old, male or female, single or with a family — this video is for and about you. That’s because Social Security has programs that affect everybody. This presentation was prepared by the Social Security Administration and tells you what you need to know about Social Security while you’re still working and what you need to know when it’s your turn to collect benefits. It also provides an overview of Medicare and Supplemental Security income benefits.
2. Here we have a very simple example of a database which has users, phone numbers and bank
   accounts as entity types. In addition we have two types of relationships: phone calls from
   one phone to another, and money transfers from one bank account to another. On the left is
   a relational database schema for our simple dataset. We don’t show a separate user table
   because we don’t have any facts about users other than their phone numbers and bank account
   numbers. On the right is the graph database schema for the same use case. There are three
   vertex types (the circles) and the four edge types (the lines). We omit the details about
   what properties each vertex type or edge type has.
3. In the sixth century B.C. Pythagoras, a Greek mathematician, is thought to have made
   accoustic experiments with a vibrating string called a monochord. Using two monochords,
   Pythagoras performed an experiment in which the string of one monochord was successively
   shortened by half (raising the pitch an octave) while the other was shortened by two thirds
   (raising the pitch a fifth). After seven octaves and twelve fifths, Pythagoras discovered
   that the B# from the second monochord was not exactly the same as the C produced by the first
   monochord, but was slightly higher in pitch. This discrepancy is called the Pythagorean
   comma.

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