The IS tanks (Russian: ИС) were a series of heavy tanks developed as a successor to the KV-series by the Soviet Union during World War II. The IS acronym is the anglicized initialism of Joseph Stalin (Ио́сиф Ста́лин, Iosif Stalin). The heavy tanks were designed as a response to the capture of a German Tiger I in 1943. [6] .

The IS-1 is the first variant of the IS heavy tank family. The new IS-1 was intended to overcome the lack of firepower and protection issues of the KV series with a whole new sloped hull design. This was a strong armour design intended to deflect or withstand projectiles from all sides.

IS-1 may stand for: The Soviet tank IS-1 the first model of the Soviet Iosif Stalin tank series; The first model of the Soviet Istrebitel Sputnikov missile; see anti-satellite weapon; Nikitin IS-1, a retractable wing fighter aircraft

3 天之前 · The IS-1 in War Thunder is very good fun! It's got good armour and a lot of people don't seem to know the weak spots so it bounces a lot of shots. The 85mm g...

IS-1 / IS-85 Heavy Tank (Object 237) The IS 1 tank and the IS 2 tank are the first in a series of heavy IS tanks. They were developed during the Great Patriotic War and began to be produced in...

The first IS-1 (definitive series vehicles) rolled of the line in October 1943, but it was stopped in January 1944, as the IS-1 was quickly replaced by the all-better IS-2. Because of this only 200 to 207 were produced.

The IS-1 is the first variant of the IS heavy tank family. The new IS-1 was intended to overcome the lack of firepower and protection issues of the KV series with a whole new sloped hull design. This was a strong armour design intended to deflect or withstand projectiles from all sides.

2017年8月8日 · One is a number, according to modern mathematics at least, but it’s a strange number: writing in the Journal of Integer Sequences, mathematicians Chris Caldwell and Yen Xiong take readers...

1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers.

1 is an odd number which is uniquely neither prime nor composite. It is known as the multiplicative identity or unit. It’s also the only positive number with no other divisors. See below for interesting mathematical facts about the number 1 from the Numbermatics database. Cardinal: 1 …