BAD::14 July 2007

GDT has minimized the creation of Basic Arithmetic Dates (BADs) primarily because they use 2-digit years. The Y2K problem taught us that 2-digit years should be avoided; therefore, BADs are bad. BADs are based upon 2-digit years at a time when we should be switching to using 5-digit years. Despite BADs being bad, today's date (14 July 2007), when written in MM/DD/YY format (7/14/07), is a BAD.

   07/14/07:  7 + 7 = 14

Seven days ago the date was 07/07/07 and it was a date that made lots of news. Today's date could be written as 7/7+7/07. Seven days from today will be the date 7/7+7+7/07 and two weeks from today will be the date 7/7+7+7+7/07.

Tomorrow and the day after that are both BADs. And although we skipped it, 7/7/07 was also a BAD.

   07/15/07:  (7 + 15) / 7 approximates Pi (3.14)
   07/16/07:  7 + 7 = 16base-8  ...or...
              7^(sqrt(sqrt(16))) = 7
   07/07/07:  sqrt(7 * 7) = 7

Exercises

1. No or Yes: 7 is a multiple of 14.

2. No or Yes: 7 is a factor of 14.

3. No or Yes: 7 squared is 14.

Creator: Gerald D. Thurman [gthurman@gmail.com]
Created: 14 July 2007