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Seeing the Stars in the Sukkah
Jewish law addresses whether a sukkah's covering should allow visibility of stars and sunlight. Sources discuss the balance between adequate shade and openness, and whether a densely covered sukkah remains valid.
אַף עַל פִּי שֶׁאֵין הַכּוֹכָבִים נִרְאִין מִתּוֹכָהּ — כְּשֵׁרָה
Early Lighting of Shabbat Candles
This topic examines the halakhic parameters for lighting Shabbat candles, including how early one may light before Shabbat begins and the relationship between early lighting and the acceptance of Shabbat. Sources range from Talmudic discussions through medieval and modern codes, addressing the balance between lighting sufficiently early for practical purposes and avoiding lighting so early that the candles burn down before nightfall.
לא יקדים למהר להדליקו בעוד היום גדול
Kli Shemelachto Lissur: Moving Tools on Shabbat
Jewish law permits moving utensils whose primary purpose is forbidden work on Shabbat under specific circumstances. Sources from Talmud through later codifiers establish the rules governing when and how such tools may be handled, distinguishing between moving them for their own use, to clear their location, or for protection.
כְּלִי שֶׁמְּלַאכְתּוֹ לְאִיסּוּר מֻתָּר לְטַלְטְלוֹ
Shofar on Shabbat: Protecting the Community
When Rosh Hashanah falls on Shabbat, the shofar is not blown outside the Temple. The Sages enacted this precaution out of concern that someone unfamiliar with proper technique might carry the shofar to an expert for instruction, thereby violating Shabbat. This ruling reflects a principle of communal responsibility and care for those less knowledgeable.
שמא יטלנו בידו וילך אצל בקי ללמוד
Using Sponges on Shabbat
Sources examine the halakhic status of sponges and absorbent cleaning materials on Shabbat, focusing on the prohibition of squeezing liquid from absorbed material (seḥitah). Rulings distinguish between sponges with a handle or rim that can be held without wringing and ordinary sponges that release water when grasped.
ספוג אין מקנחין בו אלא אם כן יש בו בית אחיזה
Asking a Non-Jew to Turn On an Oven on Yom Tov
Jewish law distinguishes between permitted and prohibited uses of non-Jewish labor on Yom Tov, with specific rules governing requests related to food preparation. The sources address when asking a non-Jew to perform work—such as lighting a fire or operating an oven—is permitted for immediate Yom Tov needs versus prohibited for other purposes.
אסור להוציא בשביל אינו יהודי שום דבר
Peeling Vegetables With a Peeler on Shabbat
Sources address the permissibility of using a dedicated vegetable peeler to remove skins from carrots, cucumbers, and other produce on Shabbat. The discussion centers on whether peeling constitutes the prohibited labor of sorting (borer) and under what conditions it may be permitted.
מותר לקלף פירות וירקות במקלף המיוחד לכך
Shabbat Candle Lighting: Sources and Customs
These sources trace the origin and development of the Shabbat candle-lighting practice from biblical foundations through rabbinic enactment and later codification. They explain the underlying reasons—peace in the home, Shabbat honor, and Shabbat pleasure—and discuss the custom of lighting two candles in correspondence with the two modes of remembering and observing Shabbat.
זָכוֹר וְשָׁמוֹר בְּדִבּוּר אֶחָד
Peeling Vegetables on Shabbat
Sources examine the permissibility of peeling cucumbers and other vegetables on Shabbat, focusing on whether the action constitutes a prohibited melacha (craft) such as grinding or sorting, and what role specialized tools play in determining halakhic status.
המחתך הירק דק דק חייב משום טוחן
Timing of Wine Pouring for Friday Night Kiddush
Sources address the proper timing and preparation of wine for Friday-night kiddush, including whether wine should be poured immediately before the blessing or at an earlier stage of the evening. The sources examine halakhic requirements for kiddush preparation and the sanctification of Shabbat.
נוהגים להחמיר ליתן את היין מהבקבוק ישירות לכוס הקידוש לשם ברכה
Kiddush Timing on Sukkot's First Night
Sources address whether kiddush may be recited before nightfall on the first night of Sukkot, considering the halakhic requirements for the timing of the festival meal and the blessing over dwelling in the sukkah.
לא יקדש אלא כשהוא ודאי לילה
Automatic Timers and Self-Running Clocks on Shabbat
Sources address the permissibility of setting clocks, timers, and other mechanisms before Shabbat so that they operate automatically throughout the day without direct human intervention on Shabbat itself. The halakha distinguishes between preparing devices beforehand and manipulating them during Shabbat, establishing principles for what constitutes prohibited work when machines continue functioning on their own.
פותחין מים לגינה ומתמלאת והולכת כל היום