dont burp
39
39
They teach their children and grandchildren the rules and laws of Shabbat.
yes for ordodox and ultra-orthodox jews reform jews might adapt the rules of shabbat
It doesn't matter where you are - the rules are always the same.
Too many rules and restrictions
G-d did not create anything new on Shabbat; the 7th day of rest. All of creation was completed in the first 6 days of creation. Since then G-d has been maintaining the world, but not creating anything new. To commemorate this, Judaism defines 39 categories of creative work which are forbidden on Shabbat. E.g.: baking, planting and lighting fires. See http://www.answers.com/topic/39-categories-of-activity-prohibited-on-shabbat for an introduction to these 39 categories.
We're not permitted to work on the Shabbat (Exodus ch.20). This includes 39 categories (Talmud, Shabbat 73b) of productive interaction with the world, such as planting, writing, building, kindling fire, using electricity, etc.
Anything that is not one of the 39 forms of forbidden creative work.
Ships at sea continue to move, but regular chores are cancelled.
There are the main rules in Judaism which consist of, Do not murder, only believe in one G-d, i took you out of Egypt, respect your parents, Do not "break" Shabbat (keep shabbat rules), no adultery, and so on.... There are also rules taken from texts my Chachamim (sages) who study it all who come up with rules, like rules concerning Koshrut (keeping kosher.)
There are specific rules for each situation already thought out ahead of time.