We define makeh bepatish and discuss how it applies to a mechanical wind-up alarm clock.

We get an overview of the 38th melacha, which is makeh bpatish, completing a vessel.

We explore which situations are permitted to use hot or cold water for bathing or washing on Shabbos.

Although the electricity in Israel is produced by Jews on Shabbos, which is a desecration of Shabbos, there is a lenient opinion, on which one can rely, to make use of electricity on Shabbos. The Chazon Ish, however, opines that it is prohibited, nonetheless.

We discuss how one can use a timer in a permitted way, and when one may or may not adjust it.

We discuss the issues involved with refrigerators, microphones and hearing aids.

We continue our discussion of the prohibition of lighting a fire as it regards electrical appliances.

We continue our discussion of the prohibition of lighting a fire.

We begin a discussion of the prohibition of lighting a fire.

We discuss what articles are permitted and what are prohibited from being saved from the fire, and under what circumstances.