It's for keeping food warm. Observant Jews don't cook on Shabbat. All the food is prepared on Friday before Shabbat starts.
Elevators in some Miami Beach hotels have a Shabbat mode where they simply stop on every floor, open the doors, wait a minute, then close the doors. It's to allow observant Jews to use them without operating a switch.
We Jews are a funny bunch, finding ways to work around our 613 commandments without breaking them. You're generally not allowed to tear things on Shabbat, so observant Jews will pre-tear toilet paper and set aside a bunch of squares for the day.
Elevators in some Miami Beach hotels have a Shabbat mode where they simply stop on every floor, open the doors, wait a minute, then close the doors. It's to allow observant Jews to use them without operating a switch.
We Jews are a funny bunch, finding ways to work around our 613 commandments without breaking them. You're generally not allowed to tear things on Shabbat, so observant Jews will pre-tear toilet paper and set aside a bunch of squares for the day.
https://en.wikipedia.org/wiki/Sabbath_mode
https://en.wikipedia.org/wiki/613_commandments
https://www.chabad.org/library/article_cdo/aid/484233/jewish...
There are Eruvim all over the world, almost wherever there is a concentration of Orthodox Jews:
https://en.wikipedia.org/wiki/List_of_places_with_eruvin