Skip to main content

Space rockets

 

rocket

Thrust is the force required to lift a vehicle such as an aircraft or rocket off the ground. Rockets often have several stages. Each one provides a proportion of the thrust required to carry a satellite, space shuttle or other vehicle into orbit or into space, dropping away as their propellant has been used so their propellant has been used so that their weight no longer need to be carried.

Labels:

Comments

Post a Comment

Popular posts from this blog

Names of months

             The   names of the months in English (as well in many other languages) come from Latin Words. January                  Januarius – this month was dedicated to Janus, the Roman god of                   doors. Janus had two faces, one looking back at the old year and                   the other looking forward to the new year.   February                 Februarius – Februa was the Roman purification festival, which took                 place at this time of year. March        ...
Post a Comment
Read more

Chinese calendar

 Present-day China uses the Gregorian calendar for most purposes, but traditional festivals, such as Chinese New Year, take place according to the ancient Chinese calendar. Legend has it that this was started during the reign of Emperor Huangdi in 2637 BC, and relates to the positions of the Moon and Sun.           Heavenly systems                  Earthly branches           1 jia                                           1 zi (rat)            2 yi                     ...
Post a Comment
Read more

Constellations

Groups of stars form patterns in the night sky, which are called constellations. There are 88 known constellations. The sumerians, a Middle Eastern civilization, probably named them, about 5,000 years ago.    The largest is Hydra, the sea serpent, and the smallest is Crux Australis, the Southern Cross. Centaurus, the Centaur. Has the most stars that can be seen with the naked eye(94). Others include Aquila, the Eagle; Canis Major, the Great Dog; and Orion, the Hunter.
Post a Comment
Read more