Oh,my... it seems to have to mention as one of shinkansen fan.
There are many times that the Shinkansen is translated as "bullet train" in English,
but in English we use Japanese "Shinkansen" like "karaoke".
The definition of "bullet train (= high speed rail)" is basically a collective term for trains
that are operating at speeds of over 200km/h, and today, there are many others even in out of Japan.
However, the fastest in the world to success this was Shinkansen in Japan,
which was constructed to fit the last Tokyo Olympic Year in 1964.
The next "TGV (in France)" succeeded this after Japan, 17 years later in 1981.https://en.wikipedia.org/wiki/High-speed_rail
Today, there are 9 Shinkansen lines and 18 Shinkansen train names in Japan,http://www.bullet-train.jp/route_map.htmlhttps://en.wikipedia.org/wiki/Shinkansen
"Nozomi" is one of them, however, it can be said that "Shinkansen = Nozomi",
but I have to say that "Shinkansen and Nozomi are NOT always the same as one word".
In addition, the Japanese Shinkansen as word has two meanings,
one is generically named as a high-speed rail track, other one is car type of "high speed train" of JR.
When we use it as track is comparing with "conventional railway line",
it is the same as the difference between "general road" and "expressway" with different speed limits.
It is easy to understand if you studied the meaning kanji(Chinese letters) of Shinkansen,
but it is only meaning "新(shin) is "new" 幹線(kan-sen) is "main line".https://en.wiktionary.org/wiki/%E6%96%B0%E5%B9%B9%E7%B7%9A
And Nozomi means "hope", it name from older school trip train "kibou" that has same meaning based.https://en.wiktionary.org/wiki/%E6%9C%9B%E3%81%BFhttps://en.wiktionary.org/wiki/%E5%B8%8C%E6%9C%9Bhttp://www.katomodels.com/product/n/155kei
Finally, about more Nozomi basics and other shinkansen trains.
Nozomi runs mainly on the Tokaido Shinkansen(Tokyo - Nagoya - Kyoto - ShinOsaka) section,
but along with the Sanyo Shinkansen(Shin Osaka - Hiroshima - Hakata) in West Japan
that follows it runs a distance of over 1000km each way everyday.
"Nozomi", "Hikari" and "Kodama" difference in the previous post is the number of "stops",
and furthermore, Nozomi is the least stops = the fastest, (Kodama stops all stations = the slowest)
so only limited express "reserved seat tickets" are bit expensive than others.
Also only Nozomi are using newer type "N700A" series cars than others.
(replacement is not finished from "N700" series, this A means "Advance" in English)
And in 2020, the Newest "N700S" debut, already "test run" started from last June.
(this S means "Supreme" in English)
Anyway, no worry about number of operating and direction, you can watch on YouTube Live.https://youtu.be/gfAAoolWcic
But this location is nearet end station Tokyo, so not high speed section.
In the morning and evening rush hour will be the most busy.
Also in YouTube a lot of Shinkansen movies uploaded by foreign travelers.https://youtu.be/Ur4m5Za6_3Yhttps://youtu.be/foPu3eXXDzQhttps://youtu.be/lLnMGmVvEXUhttps://youtu.be/JF-aKl7_gHg