How to know complete details about space shuttle ?

As we all know, this blog aim is to provide you best and latest information about all the topics which is somehow related to us. From various sources I always try to find out something unique and good information for you.


What is space shuttle?

A Space Transportation System (STS) or space shuttle is a manned launched vehicle. The main components of STS are an external tank, two solid rocket boosters and a winged orbitor.
The orbiter carries astronauts and payload into low earth orbit. Most often the orbiter itself is referred to as the the space shuttle, which is technically a misnomer. The shuttle is the first orbital spacecraft designed for partial reusability. The space shuttle will retire by 2010 and Orion, a new vehicle that is designed to take humans to the Moon and beyond, will replace it.


What was the need to make reusable spacecraft?

The main concept behind Nasa’s Space Shuttle Programme was to increase the viability of the space trip. The shuttle was designed to meet the challenge of exploration as well as to do many other jobs at a reduced cost. It was also proposed that an STS would help in routine utilization of space. However, all these claims were later criticized, given the fact that per-pound launch cost are not appreciably cheaper, as well as the years of interruption s in launches following shuttle failures.


How does the shuttle works?

The shuttle takes off like a rocket, operates in orbit as a spacecraft, and lands like a airplane. After the first two minutes of flight, the two solid fuel boosters are cut loose from the tank. The spent boosters eject parachutes and fall down about 280 km from the launch site, from the are collected for reuse.
After some time , the external tank is also cast off. It is however not suitable for reuse. Free from the tank and booster, the orbiter fires its manoeuvring engines and consequently, reshapes the egg-shaped flight path to a circular orbit. Now the shuttle is ready for work.
Coming back to earth is most critical and demanding part of the shuttle voyage. The orbiter has to change from spacecraft to an aircraft. The most difficult part is controlling the shuttle at middle speeds and altitudes, during the re-entry into the atmosphere, air friction heats up the orbiter, apart from the fact the ionization in the surrounding atmosphere blacks out communication with the ground for some time.

At an altitude of about 93 km, the air becomes dense enough so that aerodyanamic controls take hold, and the orbiter becomes a heavy glider.
Without fuel for its main engines, the craft wouldn’t be able to go around for a second landing approach in case of a miscalculation, as an airliner could, hence, it becomes very important to have clear landing conditions and a comparatively large runway.

What Is the importance of the heat shield , in the re-entry of any spacecraft?

When a manned space vehicle reenters the earth’s atmosphere, air friction can produce external surface temperatures as high as 3000 degrees Fahrenheit – well about the melting point of steel. Special thermal barriers are required to protect the vehicle and its occupants. The earlier space capsules were protected during reentry by shedding layers of heavy, resinous heat shield through a process called ablation.

With a design life of about 100 missions, the shuttle requires a light weight, reusable thermal protection, approximately 24,300 tiles and 2,300 flexible insulation blankets are pasted on the outside of the orbiter. The pasting is a complicated system as no two tiles on an orbiter are exactly alike. The tiles are delicate and have to be protected from stresses. The Columbia disaster took place when the debris of a piece of insulated foam damaged one of these tiles.

How is the nomenclature of space shuttle done?

Space shuttles are named after pioneering sea vessels. Atlantis is named for the research vessel that was the first to use electronic sounding devices to map the ocean floor. Challenger was named for the sloop captained by Robert Gray who explored British Columbia.

Discovery is named for one for the two ships used by the British explorer Captain James Cook. The other of Cook’s ships is the namesake for the shuttle Endeavour. Enterprise, the first space shuttle Orbiter, was originally to be named constitution. However, viewers of the TV science fiction show ‘STAR TREK’ started a writein campaign urging the white house to rename the vehicle Enterprise.

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Happy Holi

I wanna wish you all a very happy holy. May this holy brings you all the happiness of life. There is one message for all of you my dear friends " If you love somebody, let them go. If they return, they were always yours. If they don't , they never were ".

Keep reading this blog because soon I am going to add teraffic material on this blog which will be very exclusive , as we are.
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How to find answers in this blog?

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How to get better search results?

Today's Message :- "HOLDS FAST TO DREAMS FOR IF DREAMS DIE LIFE IS A BROKEN WINGED BIRD THAT CAN NOT FLY."

1. Use more than one search engine :

Yahoo! ( Launched in 1994, Yahoo is the web's oldest "directory," a place where human editors organize web sites into categories. However, in October 2002, Yahoo made a giant shift to crawler-based listings for its main results. These came from Google until February 2004. Now, Yahoo uses its own search technology. Learn more in this recent review from our SearchDay newsletter, which also provides some updated submission details.)

Bing ( Microsoft new search engine )

Google ( Voted four times Most Outstanding Search Engine by Search Engine Watch readers, Google has a well-deserved reputation as the top choice for those searching the web. The crawler-based service provides both comprehensive coverage of the web along with great relevancy. It's highly recommended as a first stop in your hunt for whatever you are looking for.)

2.Be specific in your search :
If you search is related to "car", try to be more specific like car engine, car compare , car prices etc

3. Trust Internet:

Sometime we tend to think that information about my search is not available on internet. We forget that Internet is very big medium and each and every thing is available here.

6.Do some changes in spelling :-

Spelling changes can do miracle sometime.

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How to tell if you have Affluenza ?

Earn more, Spend more, Want more ? Beware of the Affluenza Epidemic.

Do you agree with any of the following ?

* I would like to be a very wealthy person

* I often compare what I own with others

* Shopping or thinking about it preoccupies me.

* Possessions can be just as important as people.

* I admire people who own expensive things.

* The things I own are an indicatioin of how well I am doing.

* I would like people to comment on how attractive I look.

* I am less concerned with what work I do thatn what i get for it.

* If a friend isn't of use to me, personally or professionally, I usually end the friendship.

* I would like my name to appear frequently in the media.

Diagnosis- If you answered 'yes' to any of the questions above, then you have contracted the virus. The more you answered 'yes', the more infected you are and the greater your likelihood of becoming emotionally distressed.

I read this article in India's leading newpaper 'Times of India'.After reading this article I can say that atleast I am suffering from this Affluenza and I hope that you are not. If you are suffering too than i wanna give you one advice which i would follow myself from today onwards that please give time to your family and friends.
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How to post my own Questions in this blog?

I am only one; but still I am one. I cannot do everything, but still I can do something; I will not refuse to do something I can do.
- Helen Keller

Take these two easy steps to start posting :-

Step 1. Email your Question and Answer(if you know) with your Name to cgpandey@yahoo.com

Step 2. Your Question will be Published within a Single day and You will be Informed about that with link.

What's the need of Posting ?

"In helping others, we shall help ourselves,
for whatever good we give out completes the circle
and comes back to us."

Thanks,

Administrator
( how-to-answers.blogspot.com)

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How to get quotations for boosting confidence?

This is a time of compition, and due to the immense compition factor people are loosing their faith in themselves.So i have decided to write something about this topic.Here i am giving you some good phraises which will help you to boost your confidence.

* "Life, no matter how difficult it gets it's better than the alternative (death)."

* "Nothing is impossible for a willing hand"

* "Make visible what, without you, might perhaps never have been seen." - Robert Bresson

* It takes but one positive thought when given a chance to survive and thrive to overpower an entire army of negative thoughts.

* "Nothing happens by chance, everything happens for a reason. Your brain may not know the reason, it may never figure it out. But your heart knows, your heart always knows".In other words things happen as they should and will end well if you have faith in the happenings."

* "I used to joke when my teacher said this 9 years ago, but found it was quite true. When you come to the bridge, everything will straighten out"

* "A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort." -Herm Albright.

* "A strong positive attitude will create more miracles than any wonder drug."

* "Be positive in addressing the envelope to your future, For enclosed are your efforts from the past. Be certain of the postage and double check what class."

* "Sorrow is not the absence of happiness, it is our incapacity to behold it."

* "You must be the change you want to see in the world."

* "No man is free who is not master of himself."

* "in the eye of the storm.... i am calm" "be still....and know that i am god"

* "Of all the creatures in life, only Man does not know that life is to be enjoyed!"

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