Sustainer-stage thrust

The lethal oral dose in humans is probably around 100, but doses as low as 16 mg have reportedly been fatal whereas doses of 2 000 mg have been survived. After ingestion, effects usually occur within 10-30 minutes and include stiffness of the face and neck muscles and increased reflex excitability. Strychnine acts by altering nerve impulses in the spinal cord, resulting in a decreased threshold for stimulation, and, hence, a hyperexcitable state. Any sensory stimulus may produce a violent motor response that, in the early stages of intoxication, tends to be a coordinated extensor thrust and, in later stages, may be a tetanic convulsion with opisthotonos anoxia and cyanosis develop rapidly. Between convulsions, muscular relaxation is complete, breathing is resumed, and cyanosis lessens. Because sensation is unaffected, the convulsions are painful and lead to overwhelming fear. As many as 10 convulsions separated by intervals of 10-15 minutes may be experienced, but death often occurs after the second to fifth convulsion, and even the first convulsion may be fatal if sustained death is commonly due to asphyxia.If recovery occurs, it is remarkably prompt and complete despite the violence of the illness muscle soreness may persist for a number of days. ... 

Booster Rocket. Any high-thrust unit or assembly that fires at take-off to get a missile(such as a rocket,bomb,shell) or an unmanned or manned aircraft, to which it is attached, started along its trajectory. Usually, a booster rocket produces a much greater thrust than the 2nd stage or sustained power plant of a rocket. Booster rockets are usually propelled by a solid propellant(such as in the Nike -Ajax missile) but liq proplnts are also used. The booster rocket should not be confused with ATO, JATO or RATO engines although there is a considerable similarity in design. A liquid-propelled booster rocket is used when the requirements are more extensive than normally available from solid-pro-... 

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