Actually, looking at the datatable again, it seems to me that this data is a bit unrealistic, in that consecutive periods of employment start and end on the same day. ...

In terms of the question posed, I'd have to say I prefer the first one.  I'm a big fan of keeping things as simple as possible, provided that you cover...

Reminds me of what happened when World of Warcraft was first released for online multiplayer.  There was huge outcry about servers lagging, network problems, etc from the users, because the game...

Hi Steve,

Nice editorial, although I have to point out that there are actually only three fundamental machines - the wheel, the lever, and the inclined plane.  The pulley is an application...