Clarification: Rebbi Sh'mayah explains that all these B'rachos require the mention of both Shem and Malchus - 'Baruch Atah Hash-m Elokeinu Melech ha'Olam ... '.

Clarification: And that is also what Rebbi Shimshon from Coucy wrote regarding the Ri who used to recite over lightning 'Baruch Atah Hash-m ... she'Kocho u'Gevuraso Malei Olam'. And so the Ri himself explained. And he cites a Yerushalmi in our Perek - where Rebbi Ze'ira states that 'Any B'rachah that does not contain Malchus is not considered a B'rachah'.

Halachah: It also appears to our Rebbe that it is specifically from thirty days to thirty days that one is required to recite this B'rachah, similar to someone who sees the Yam ha'Gadol, about which the Yerushalmi in this Perek specifically states that (See Maharsha).

Clarification: The Yerushalmi has the text 'where Avodah-Zarah is uprooted from Eretz Yisrael.)

Clarification: This does not pertain to all rivers; only to the four rivers e.g. the Chidekel and the P'ras (See Maharsha).

Observation: And the same applies to the place where the Camp of Sancheriv fell ...

Reason: Since Chizkiyah is no worse than a specific person.

Implied Question: And the reason that the Tana did not mention it is ...

Answer: Because the place in the area surrounding Yerushalayim is well-known.

Retraction: Rabeinu Yehudah however later concluded that since the miracle was not known on account of the location in the way that the others are, it is only those who experienced the miracle who need to recite the B'rachah.

Conclusion: In fact everybody is obligated to recite a B'rachah over his own personal miracle, even though it is not known on account of the location.

Implied Question: The Pasuk in Tehilim, does not list them in this order, only it puts those who travel in the desert first ...

Answer: Because the Pasuk lists them according to the order of danger, whereas the Gemara lists them according to the more common.

Halachah #1: Since the She'eilah is not resolved, we go le'Chumra and recite the B'rachah even if there are not two Talmidei-Chachamim present.

Halachah #2: The Minhag is to recite the B'rachah after reading in the Torah.

Halachah #3: This Halachah is restricted to a sick person who was confined to bed, but not to someone who merely had a headache or a stomachache (ha'Rav R.Yosef).

Question: But have we not learned that 'A B'rachah which does not contain Malchus is not considered a B'rachah?

Answer: Rav Yehudah was a Talmid of Rav, who holds (in Keitzad Mevorchin, Daf 40:) that one only needs to mention the Name of Hash-m (and not Malchus).