Rockets or launch vehicles, Science

Rockets or Launch Vehicles:

Every flight into space begins with a rocket launching. The rocket can lift a satellite or spaceship  carrying human beings and equipment into space. Therefore,  it is also called launch vehicle. The rocket has been known to mankind  for centuries. Rockets used as firecrackers are a common sight on festive occasions  in our country. But the rockets that launch space whicles use highly advanced technology, and, of course, they are far more  

 

2479_Rockets or Launch Vehicles.png

When  the  fuel  in the rocket is set tofire, a stream of hot gases is expelled at a high speed from its rear end (Fig).  As  ireaction to  the thrust of  the,gases,  the rocket moves in the opposite direction. As  long as the  fuel  in the rocket burns, shooting out gases, the rocket continues to accelerate forward, and acquires great speed. No single  rocket fired  from the earth can attain in one go the high speeneeded  to orbit the earth, or to escape its pull. Higher speeds are  reached by using big and small rockets, in stages. in the launch vehicle. As  the large rocket soars into space and uses up its fuel, lt IS separated from the smaller  rocket and drops off. The smaller  rocket already going at high speed is  then fired to accelerate  it to an even higher speed. Three-stage rockets are usually able to achieve speeds suitable for most purposes in  space (Fig). The final stage of  the launch vehicle carries the payload. Activity Verify the principle of  rocket motion by  releasing an inflated  balloon with its neck open. The different kinds of  payloads that rockets carry into space include artificial  satellites and space probes to nearby heavenly bodies. The satellites and probes themselves carry communication and research Quipment.  

 

Posted Date: 9/29/2012 1:45:19 AM | Location : United States







Related Discussions:- Rockets or launch vehicles, Assignment Help, Ask Question on Rockets or launch vehicles, Get Answer, Expert's Help, Rockets or launch vehicles Discussions

Write discussion on Rockets or launch vehicles
Your posts are moderated
Related Questions
lmmunoglobulin G  - classification of antibodies Major defence against bacteria and their toxins. It is the major Ig - 80% in the body, can cross the capillary wall very easily

how do i draw mario at two different resolutions: 32 by 32 pixels, and 8 by 8 pixels.

Enumerate in brief about the Earthworms There are several species of earthworms, having slender cylindrical bodies with varying diameters. These organisms ingest the dead organ

Define the olfactory area of the Cerebrum The olfactory area lies deep within the temporal lobe. Look at Figurefor its position. Cells receive and interpret impulses from nose

Anthropological Evidence Modern humans arose at a time when the Earth was going through a very cold and icy period called the Ice Age, which began about 75,000 years ago and

how to prevent skin problems?

Describe the factors which decide the broad area of Scientific activity

What''s electricity and what dangers, can heat cause?

High voltage power supply

Question 1 Classify suture with help of examples 2 Give a brief description of following syndromes Felty's syndrome Ekbom syndrome Klippel-Feil syndrome Hepatore