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This is a list of calculators created and produced in Soviet Union. Mechanical computers ... (Russian: бытовая), which means "domestic". Elektronika B3-01;
A rocket's required mass ratio as a function of effective exhaust velocity ratio. The classical rocket equation, or ideal rocket equation is a mathematical equation that describes the motion of vehicles that follow the basic principle of a rocket: a device that can apply acceleration to itself using thrust by expelling part of its mass with high velocity and can thereby move due to the ...
The first Soviet programmable stationary calculator the ISKRA 123, using mains power, was released at the beginning of the 1970s. The first programmable battery-powered pocket calculator Elektronika B3-21 was developed by the end of 1977 and released at the beginning of 1978. Its successor, B3-34, wasn't backward compatible with B3-21.
It is equivalent to (10 cm) 3 = (1 dm) 3 = 10 −3 m 3. Many non-SI units continue to be used in the scientific, technical, and commercial literature. Some units are deeply embedded in history and culture, and their use has not been entirely replaced by their SI alternatives.
The decimetre (SI symbol: dm) is a unit of length in the metric system equal to 10 −1 metres ( 1 / 10 m = 0.1 m). To help compare different orders of magnitude , this section lists lengths between 10 centimeters and 100 centimeters (10 −1 meter and 1 meter).
= 1 × 10 −9 m 3: last: ≡ 80 bu (imp) = 2.909 4976 m 3: litre (liter) L or l ≡ 1 dm 3 [19] ≡ 0.001 m 3: load: ≡ 50 cu ft = 1.415 842 3296 m 3: minim (imperial) min ≡ 1 ⁄ 480 fl oz (imp) = 1/60 fl dr (imp) = 59.193 880 208 3 × 10 −9 m 3: minim (US) min ≡ 1 ⁄ 480 US fl oz = 1 ⁄ 60 US fl dr = 61.611 519 921 875 × 10 −9 m ...
'Block DM-03', GRAU index: 11S861-03), is a Russian upper stage used as an optional fourth stage on the Proton-M and Angara A5 heavy-lift rockets. Three have been launched, the first in December 2010; [2] the first two launches failed before fourth stage ignition, the first as a result of a problem with the Blok DM's fuel load. [3]
Blok D (Russian: Блок Д, lit. 'Block D') is an upper stage used on Soviet and later Russian expendable launch systems, including the N1, Proton-K and Zenit. [2]The stage (and its derivatives) has been included in more than 320 launched rockets as of 2015. [3]