• Categories

  • Most Popular Questions

  • Recently Viewed Questions

  • Recent Answers

    How To Make a Digita… on What does a frequency of 100 H…
    Daigrepont on Can an earthquake cause air tu…
    Benedict on How did God come into exi…
    joshua on How does the human body g…
    Ian on How did God come into exi…
  • Recent Questions

  • Blog Stats

    • 2,201,271 hits
  • Visitors since 11-3-08

    counter create hit
  • Terms and Conditions

  • Warning

    We are doing maintenance on this site, so some posts may disappear for a short time. Sorry. Normal service will soon be resumed...
  • Pages

  • March 2008
    M T W T F S S
    « Feb   Apr »
     12
    3456789
    10111213141516
    17181920212223
    24252627282930
    31  
  • Archives

  • Meta

How long does it take to go to space in a space ship?

How long does it take to go to space in a space ship?
Minet junior school from Greater London (Age 5-14)

Advertisements

One Response

  1. A difficult question to answer unless you know something about ‘space’. Scientists usually refer to ‘outer space’ as the areas between objects with atmospheres, such as the planet Earth. So outer space starts where there is practically no atmosphere or what is usually called a vacuum (although even in outer space there are some atmospheric particles). As far as the Earth is concerned aircraft operate in ‘airspace’ and space craft opetrate in ‘outer space’ which begins about 100km above the surface. Gravity pulls everything towards the Earth so a space craft must escape from gravity otherwise it will fall back to earth. The speed needed to leave the gravitational pull of Earth is called ‘escape velocity’ . The minimum escape velocity is about 25,000 miles per hour. However there is the problem that moving through the air causes friction which creates heat so a space craft could burn up on its way out of the atmosphere. Simply put; Space craft are launched as fast as possible without burning up and when the fuel is used the tanks drop away so that the lighter craft can continue up. I know this does not answer the original question but once outside the gravitational pull of the Earth it depends on where the space craft is going on how long it will take, just like any journey.

    Peter Halford, Science and Technology Teacher, Imperial War Museum Duxford.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: