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After calling up the function, the Zeitgeist 2 will prompt you to shake it. This is followed
by a jingle and the response is read out.
•
Top SHORT
or
Bottom SHORT
or Shake ..... To generate a new response
•
Middle SHORT
................................................ To repeat the last response
Independently of the operating state:
Combination
Top+Bottom SHORT
............ To return to the home screen
Middle LONG
.............................................. To return to the main menu
6.9 Period calendar
The Zeitgeist 2 also includes a mathematical-statistical function in the form of a period
calendar designed to help women with managing their periods. Once they have entered
the dates of previous periods, the algorithms used here estimate when subsequent ones
are to be expected. The more data input here and the more precise it is, the more
accurate each prediction will be.
This function cannot, of course, take account of physical changes resulting from illness,
diet, or weather conditions. This equally applies to similar period calendars available
online or on cell phones.
If you have already kept a record of your periods, you can then enter them in the period
calendar and get a reliable statistical result right away. However, if you are entering
dates for the first time, it will then take several cycles before the results become
sufficiently accurate, particularly for periods that are a long time in the future.
After calling up the function in the main menu, you have two options: "New" and
"Periods".
If you are using this function for the first time, you can of course input dates for several
previous periods under "Enter new period". Always enter the first day of your period,
beginning with the one that dates back
the longest
, e.g. six months ago.
Here you will be asked the relevant date (year/month/day). Your entries will be
summarized with an acoustic message and confirmed by the device returning to the
home screen.
It is not possible to enter dates in the future: the earliest date is the current one (today),
as it is only then that you will of course know for sure whether your expected period is
starting.
When you arrive at your ongoing period in your list, the second item "Periods" will then
indicate when new periods are scheduled to begin in the future. When you call up the
