1 comment | Thursday, February 14, 2013
Thrust is the force required to lift a vehicle such as an aircraft of 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 that their weight no longer needs to be carried. Below are the largest and most powerful types of rocket that have been used since 1967.


Rocket/Country/DatesLength(m)Weight(tonnes)Thrust(tonnes)
Saturn V (USA) 1967-75
Launched Apollo spacecraft
1023,0393,440
STS (space shuttle, USA) 1981562,0402,630
Titan 4 (USA) 1989-98549061,448
Ariane (France) 1996-carries satellites
up to 16 tonnes into orbit
547461,162
Delta IV (USA) 2001-70.7733884
Long March (Chang Zheng) CZ 2-C
(China) 1975-93
35192302
Atlas Centaur SLV-3D (USA) 1973-8338149148

Artificial satellites:
The USSR's Sputnik 1 was the artificial satellite to enter Earth's orbit. This 83.6kg metal sphere transmitted signals back to Earth for 3 weeks before its batteries failed. The USA began to launch its own satellites in 1958. Including SCORE (Signal Communications Orbit Relay Experiment) which transmitted back to Earth a pre-recorded Christmas message from President Eisenhower, five went into orbit. All of the earliest satellites have since crashed back to Earth, except Vanguard 1 (USA, 1958) which is still in space and likely to remain so for another 200 years.

Over the past 150 years, many more artificial satellites have been launched, with a greater range of uses.
Astronomy-
The Hubble Space Telescope has been taking photographs of distant galaxies since 1990. In 2007 the Herschel Space Observatory is scheduled for launch. This new telescope will have the biggest mirror ever in space (3.5m across).

Military satellites-
Governments use these "spies in the sky" for surveillance but their precise functions are secret.

Earth observation satellites-
These transmit images of the weather and the Earth's environment. They helped to show that the ozone layer was being depleted.

Communications-
Over 5,000 satellites have been launched to transmit telephone, radio and television signals around the world. Less than half are still orbiting and many have stopped working.

Global Positioning System (GPS)-
This is a system of 24 linked satellites that allows people to pinpoint their exact position anywhere on Earth. The system is operated by the US Department of Defense and is used by aircraft and ships. Now a days GPS systems are common in cars.

1 comment:

  1. https://www.facebook.com/bantalsilikongrosir
    http://bantalsilikon01.blogspot.com/2014/12/a.html
    http://jualsangkarpleci.blogspot.com/2014/12/a.html
    http://kopiluwakliar01.blogspot.com/2014/12/a.html
    http://vvty.in/uncategorized/marinir-seo/

    http://marinirseo.blogspot.com/2014/12/a.html
    http://marinir-seo.blogspot.com/2014/12/a.html
    http://bumbu-pecel-malang.blogspot.com/2014/12/a.html
    http://distro-seo.blogspot.com/2014/12/a.html
    http://restoran-seo.blogspot.com/2014/12/a.html
    http://bantalmalangmurah.blogspot.com/2014/12/a.html
    http://distrobantal.blogspot.com/2014/12/a.html
    http://kesethandukmalang.blogspot.com/2014/12/a.html

    http://tasya.marinirseo.web.id/?p=4http://caca.marinirseo.web.id/?p=4http://anne.marinirseo.web.id/?p=4http://jeannet.marinirseo.web.id/?p=4http://jelita.marinirseo.web.id/?p=4http://brenda.marinirseo.web.id/?p=1http://ruth.marinirseo.web.id/?p=4http://tasya1.marinirseo.web.id/?p=4http://caca1.marinirseo.web.id/?p=4http://anne1.marinirseo.web.id/?p=4http://jeannet1.marinirseo.web.id/?p=4http://jelita1.marinirseo.web.id/?p=4http://brenda1.marinirseo.web.id/?p=1http://ruth1.marinirseo.web.id/?p=4http://tasya2.marinirseo.web.id/?p=4http://caca2.marinirseo.web.id/?p=5http://anne2.marinirseo.web.id/?p=4http://jeannet2.marinirseo.web.id/?p=4http://jelita2.marinirseo.web.id/?p=4http://brenda2.marinirseo.web.id/?p=1http://ruth2.marinirseo.web.id/?p=4http://ruth3.marinirseo.web.id/?p=3http://jelita3.marinirseo.web.id/?p=3http://brenda3.marinirseo.web.id/?p=3http://jeannet3.marinirseo.web.id/?p=3http://anne3.marinirseo.web.id/?p=3http://caca3.marinirseo.web.id/?p=3http://tasya3.marinirseo.web.id/?p=3http://tasya4.marinirseo.web.id/?p=4http://caca4.marinirseo.web.id/?p=4http://anne4.marinirseo.web.id/?p=4http://jeannet4.marinirseo.web.id/?p=4http://jelita4.marinirseo.web.id/?p=4http://brenda4.marinirseo.web.id/?p=6http://ruth4.marinirseo.web.id/?p=4http://tasya5.marinirseo.web.id/?p=4http://caca5.marinirseo.web.id/?p=4http://anne5.marinirseo.web.id/?p=4http://jelita5.marinirseo.web.id/?p=4http://ruth5.marinirseo.web.id/?p=4
    http://tasya.marinirseo.web.id/?p=4http://caca.marinirseo.web.id/?p=4http://anne.marinirseo.web.id/?p=4http://jeannet.marinirseo.web.id/?p=4http://jelita.marinirseo.web.id/?p=4http://brenda.marinirseo.web.id/?p=1http://ruth.marinirseo.web.id/?p=4http://tasya1.marinirseo.web.id/?p=4http://caca1.marinirseo.web.id/?p=4http://anne1.marinirseo.web.id/?p=4http://jeannet1.marinirseo.web.id/?p=4http://jelita1.marinirseo.web.id/?p=4http://brenda1.marinirseo.web.id/?p=1http://ruth1.marinirseo.web.id/?p=4http://tasya2.marinirseo.web.id/?p=4http://caca2.marinirseo.web.id/?p=5http://anne2.marinirseo.web.id/?p=4http://jeannet2.marinirseo.web.id/?p=4http://jelita2.marinirseo.web.id/?p=4http://brenda2.marinirseo.web.id/?p=1http://ruth2.marinirseo.web.id/?p=4http://ruth3.marinirseo.web.id/?p=3http://jelita3.marinirseo.web.id/?p=3http://brenda3.marinirseo.web.id/?p=3http://jeannet3.marinirseo.web.id/?p=3http://anne3.marinirseo.web.id/?p=3http://caca3.marinirseo.web.id/?p=3http://tasya3.marinirseo.web.id/?p=3http://tasya4.marinirseo.web.id/?p=4http://caca4.marinirseo.web.id/?p=4http://anne4.marinirseo.web.id/?p=4http://jeannet4.marinirseo.web.id/?p=4http://jelita4.marinirseo.web.id/?p=4http://brenda4.marinirseo.web.id/?p=6http://ruth4.marinirseo.web.id/?p=4http://tasya5.marinirseo.web.id/?p=4http://caca5.marinirseo.web.id/?p=4http://anne5.marinirseo.web.id/?p=4http://jelita5.marinirseo.web.id/?p=4http://ruth5.marinirseo.web.id/?p=4

    ReplyDelete

Translate