04 October (Guinea-Bissau ) within release Apollo-Soyuz mission goes into circulation Stamp Start of Russian rocket face value 5 Guinea-Bissau peso
Stamp Start of Russian rocket in catalogues | |
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Michel: | Mi:GW 390A |
Stamp is square format.
Also in the issue Apollo-Soyuz mission:
Stamp Start of Russian rocket it reflects the thematic directions:
A rocket (from Italian: rocchetto, lit. 'bobbin/spool') is a vehicle that uses jet propulsion to accelerate without using any surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely from propellant carried within the vehicle; therefore a rocket can fly in the vacuum of space. Rockets work more efficiently in a vacuum and incur a loss of thrust due to the opposing pressure of the atmosphere.