Grenada Flag Meaning: The color yellow in Grenada's flag symbolizes the sun and the friendliness of the inhabitants; the green represents the country's vegetation and agricul â¦ ture; and the red stands for the courage and vitality of Grenada's people.
The giant TOPOL-M road-mobile intercontinental ballistic missile is one frightening creation of mankind. It can hide in cities, forests, or even nuclear-attack hardened bunkers. It'll travel at over 15,000 MPH while taking evasive action and pumping out decoys on the way to its target. TOPOL-M, known by NATO as the 'Sickle-B,' was the first ICBM created by Russia after the fall of the Soviet Union.
A scramjet (supersonic-combustion ramjet) is a ramjet engine in which the airflow through the whole engine remains supersonic. The highest speed attained by a rocket-powered airplane, NASA's X-15 aircraft, was Mach 6.7. The fastest air-breathing, manned vehicle, the SR-71, achieved slightly more than Mach 3. The X-43A more than doubled the top speed of the jet-powered SR-71.