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===GPS=== | ===GPS=== | ||
# Someone with Alzheimer's or an Autistic child who needs to wear an electronic GPS device to track his location and even alert a responsible party in cases of danger may do so on Shabbat.<ref>Minchat Asher 1:31:3</ref> | # Someone with Alzheimer's or an Autistic child who needs to wear an electronic GPS device to track his location and even alert a responsible party in cases of danger may do so on Shabbat.<ref>Minchat Asher 1:31:3</ref> | ||
===Dishwashers=== | |||
# It is forbidden to set a timer before [[shabbat]] to automatically operate a dishwasher on [[shabbat]]. <ref> Shemirat Shabbat Kehilchata 12:37, Menuchat Ahava 1.24.31. The Shemirat Shabbat Kehilchata's proof is that when you close the door even though it is totally off it is considered a grama when the melacha will occur later like we find in Mishna Brurah 253:100. [http://www.yutorah.org/sidebar/lecture.cfm/859947/rabbi-hershel-schachter/status-and-applications-of-use-of-electric-appliances-and-devices-on-shabbat/ Rav Hershel Schachter (Electricity on Shabbat min 35)] explained that it was forbidden to use a dishwasher on Shabbat even if it is going to turn on at a later time since closing the door is considered a grama for when the timer will turn on. | |||
Since the dishwasher doesn't function if it isn't closed it may not be used. It is also forbidden to illegally get a mechanic who will break the dishwasher so that it starts even if the door isn't closed.</ref> | |||
==Setting Timers before Shabbat== | ==Setting Timers before Shabbat== |