Is there any halachik problem with blowing bubbles on Shabbos? If so what melacha categories does it fall under? Does the age of the blower matter?
What's the deal with showering on yom tov? I am asking not about shabbos, but specifically about yom tov.
Can someone living outside of Israel ask a visitor from Israel to do a melacha for them on the second day of Yom Tov if the visiting Israeli is only keeping one day of Yom Tov?
What is the problem with shaking one of the no battery/shaking flashlights which is on on shabbos?