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Archive for the ‘science’


Journal Entry 4

1. Likes and dislikes of this project…..any suggestions on how to improve???

I believe that this project was quite good as we had our own folder to keep us on track and because we have completed a few practicals. What I didnt like about this project was that we had to write all the practicals in our book. I think it could be better next project by not making us write up as many practicals. But overall it was a good project.

2. What areas do you think you have improved in from project 1 to project 4?

Putting more effort into my work and working more in a team.

3. What further skills would you like to develop over the next few projects?

Staying on track and completing all set work with my best effort.

Journal Entry 3

  1. Analyse why red sunsets can sometimes be more impressive when there is more dust or pollution in the air than usual. 

When light scatters it is because molecules of gas and dust in the atmosphere changes the the direction of light. If there are more molecules of gas or dust in the atmosphere the blue light rays will scatter a lot more leaving the red and orange more impressive than normal.

 

  1. Describe what happens inside water droplets to cause a rainbow and explain how you can tell whether a rainbow is a primary or secondary.

When water droplets are in the sky they are like prisms. Colours can be seen when produce total internal reflection.

Journal Entry 2

  1. what causes the defect

Long sightedness which is still unknown and short sightedness that is usually young people. 

    b.the symptoms displayed

Long sightdetness can make a person have sore eyes or a headache while short sightedness can make a person see objects from far blurry.

    c.propose what sort of lens may be used to correct each vision.

Convex lenses that are thin at the edges are used for long sightedness while concave lenses which a thin in the middle are use for short sightedness.

Journal Entry 1

Fibre optic technology offers many advantages when used in medical applications.

 

  1. describe how optical fibre may be used in medical applications

Optical fibre has been used in endoscopes, bronchoscopes and laparoscopes.

    b. identify the traditional medical techniques that optical fibres might replace

The optical fibre is much better and easier as it doesnt ruin or hurt the human body while the traditional medical techniques could.

    c. Evaluate the benefits of fibre optic technology to medicine

Fibre objects easily and straight away examine the problem more accurately then the traditional medical way and fibre objects also provide a lot more opportunity to learn and find out more of the body.

 

Journal Entry 3

The movie ” Contact ” stared Jodie Foster as an astronomer who discovers signals from extraterrestrial intelligence and later makes contact. This character is rumoured to be based on a real – life SETI researcher, Jill Tarter. Research Jill’s contribution to the SETI program.  

Jill Tarter holds the Bernard M. Oliver Chair for SETI Research and is Director of the Center for SETI Research at the SETI Institute in Mountain View, California. Tarter’s work has brought her wide recognition in the scientific community, including the Lifetime Achievement Award from Women in Aerospace, two Public Service Medals from NASA, Chabot Observatory’s Person of the Year award (1997).

Journal Entry 2

Investigate other theories of the origin of the universe or suggest your own. 

My theory of the origin of the universe is that the universe will keep expanding greatly and that human kind will never know everything about space.

Some of the scientists theory are that the universe began to expand when the universe was the size of the pin then exploded. This theory is called the big bang theory. The big bang theory seeks to explain the sudden appearance of everything from nothing. Though this theory is well believed scientists believe that there are living species around the universe all though it is very complex.

 

Journal Entry 1

Research more about the Hubble Space Telescope. Gather information about
a) Hubble’s involvement in space research

In 1919 he began to work at Mt. Wilson Observatory in California, where he would work for the rest of his life. He was researching nebulae, fuzzy patches of light in the sky. In 1924, he announced the discovery of a Cepheid, or variable star, in the Andromeda Nebulae.

b) What the space telescope does

The space telescope enables you to look into space and observe parts of the galaxy.

c) Where it is

Mt PALOMER
d) What Hubble’s constant is

He constant is to study science