rocket | engleski leksikon

1. rocket

pridev

rocket | engleski leksikon

2. rocket

imenicabotanika

Sinonimi: roquette | garden rocket | rocket salad | arugula | Eruca sativa | Eruca vesicaria sativa

Erect European annual often grown as a salad crop to be harvested when young and tender; SYN. roquette, garden rocket, rocket salad, arugula, Eruca sativa, Eruca vesicaria sativa.

rocket | engleski leksikon

3. rocket

imenica

Sinonimi: rocket engine | skyrocket

1. A device containing its own propellant and driven by reaction propulsion; SYN. rocket engine.
2. Any vehicle propelled by a rocket engine.
3. Propels bright light high in the sky, or used to propel a lifesaving line or harpoon; SYN. skyrocket.
Projectile driven by the reaction of gases produced by a fast-burning fuel. Unlike jet engines, which are also reaction engines, modern rockets carry their own oxygen supply to burn their fuel and do not require any surrounding atmosphere. For warfare, rocket heads carry an explosive device.
Rockets have been valued as fireworks over the last seven centuries, but their intensive development as a means of propulsion to high altitudes, carrying payloads, started only in the interwar years with the state-supported work in Germany (primarily by Wernher von Braun) and of Robert Hutchings Goddard (1882–1945) in the US. Being the only form of propulsion available that can function in a vacuum, rockets are essential to exploration in outer space. Multistage rockets have to be used, consisting of a number of rockets joined together.
Two main kinds of rocket are used: one burns liquid propellants, the other solid propellants. The fireworks rocket uses gunpowder as a solid propellant. The space shuttle's solid rocket boosters use a mixture of powdered aluminum in a synthetic rubber binder. Most rockets, however, have liquid propellants, which are more powerful and easier to control. Liquid hydrogen and kerosene are common fuels, while liquid oxygen is the most common oxygen provider, or oxidizer. One of the biggest rockets ever built, the Saturn V moon rocket, was a three-stage design, standing 111 m/365 ft high, weighed more than 2,700 metric tons/3,000 tons on the launch pad, developed a takeoff thrust of some 3.4 million kg/7.5 million lb, and could place almost 140 metric tons/150 tons into low Earth orbit. In the early 1990s, the most powerful rocket system was the Soviet Energiya, capable of placing 100 metric tons/110 tons into low Earth orbit. The US space shuttle can put only 24 metric tons/26 tons into orbit.

rocket | engleski leksikon

4. rocket

glagol

Sinonimi: skyrocket

To shoot up abruptly; SYN. skyrocket.

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