The Science Behind the Mishnah
The Science Behind the Mishnah
Join Rabbi Siddur for a trip to the moon and back, exploring the science behind the halachic question of when you can say Krias Shema in the morning.
When does the day start? Is it at sunrise or at dawn? How is dawn defined? And how did Hashem set up the world so that daylight would come every 24 hours?