Cally Ang : Why Is There A Leap Year?

A leap year (or intercalary year) is a year containing one or more extra days (or, in case of lunisolar calendars, an extra month) in order to keep the calendar year synchronised with the astronomical or seasonal year. For example, February would have 29 days in a leap year instead of the usual 28. Seasons and astronomical events do not repeat at an exact number of full days, so a calendar which had the same number of days in each year would over time drift with respect to the event it was supposed to track. By occasionally inserting (or intercalating) an additional day or month into the year, the drift can be corrected. A year which is not a leap year is called a common year.

Resource:
http://en.wikipedia.org/wiki/Leap_year#Leap_day

EJ : Car Plates Starting With E ?

those with only 1 or 2 alphabets, eg. E1234H, EG1234H, SJ1234H, are actually the older registered carplates. But with too much cars in sg so we have gone to 3 alphabets. these special carplates are still for sale by bidding. i'm still looking for a carplate that bears my initials or my lucky number...

Resource:
http://forums.keeptouch.net/showthread.php?p=1989998

Cally Ang : What Is N.B ?

Nota Bene is a Latin phrase meaning "Note Well," coming from notâre—to note.^[1] It is in the singular imperative mood, instructing one individual to note well the matter at hand. (The pluralis form is notate bene.)

In present day English, it is used to draw the attention of the reader to a certain (side) aspect or detail of the subject on hand, translating it as "pay attention" or "take notice". It is often written in the abbreviated form: N.B.

Nota Bene is also the name of a suite of word-processing and related software, derived from XyWrite It is marketed especially for scholarly (e.g. multilingual) purposes.

Resource:
http://en.wikipedia.org/wiki/Nota_bene

Cally Ang: What Does P.S Means ?

P.S. at the end of letter is abbreviated for

: Postscript, a message at the end of a letter or other piece of writing. "Post-" = after; "script" = writing.

Post Scriptum in the ancient Roman tongue, which is why it's two letters, even though our English word postscript has become one word.

Sources:

http://www.phrases.org.uk/bulletin_board/17/messages/728.html