Colliding plates experiment
Conclusion: with the experiment things that were seen was that when the paper collided both at the same time the paper converged and replicated how mountains are formed. The second represented how when oceans and continnest collide what happens.
Experiment: Plates that seperate
Conclusion: in the experiment things that have observed is that when the plate begin to seperate more and more land or in this case ocean floor is being created also creating hufe rigs.
Experiment: Convection currents experiment
Conclusion: in the experiment when placing potassium permaganate into a beaker and placing the beaker onto a hot plate things that were noted was that when temperature was rising things can be seen such as the colour of the potassium permaganate goes up to the surface of the liquid and circulates in circular motion. Thus proving that tectonics plate do move on convection currents.
Journal Entry Week 3
Analyse why red sunsets can sometimes be more impressive when there is more dust or pollution in the air than usual.
Red sunsets can be sometime more impressive when there is more dust or pollution because the light has more material in the air which it has to reflect off but where as if there was no pollution their would be less light being reflected therefore a less impressive sunset.
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 it is raining and light hits a water droplet, the water droplet acts like a prism when the light enters the droplet the light is split into the colours of the rainbow then those colours are reflected out into the a rainbow in which we see. In a rainbow there is only one internal reflection. A secondary rainbow is when the light enters the water droplet, splits the light but rather than having one internal reflection their will be two and because of this colours are filled so that red will be at the bottom rather than the red being at the top. That is how we can tell is the rainbow is secondary or not.
nvestigate the two types of sight defect- long-sightedness and short sightedness.
Find the following information:
Long-sightedness: long-sightedness is caused by the light rather than being focused on the retina it is focused behind the retina which causes a blurry image.
Short-sightedness: Short-sightedness is caused when light is focused in front of the retina rather than being focused on the retina this will cause blurring of an image like long-sightedness.
Short-sightedness: Causes distant objects to appear blurry and unfocused, while nearby objects remain in focus. (http://hcd2.bupa.co.uk/fact_sheets/html/myopia.html#1)
Close objects appear fuzzy or blurry, while distant objects remain in focus.
Headaches or tired eyes. In young people with long sight, the eyes can still focus on near objects, for example when reading a book. But the muscles in the eye have to contract more to allow this. So you might find that you get headaches when you read, write or do other near work, and that your eyes feel tired.
(http://hcd2.bupa.co.uk/fact_sheets/html/long_sightedness.html)
Fibre optic technology offers many advantages when used in medical applications.
a. describe how optical fibre may be used in medical applications
Optical fibres can be used used in medical applications by making smaller and smaller cameras which are used to tkae a view inside the body without making huge incesions, this would mean that a paitents recovery time will be a lot less and the their would be a lot less scaring on the body. Also optical fibres are lot cheaper to make rather than the convetional methods of making a camera for a medical application.
b. identify the traditional medical techniques that optical fibres might replace
One traditional medical technique that optical fibres can replace is the search of finding and removing possible breast cancer, the old technique was that the whole breast would be taken off is their was doubt, but with optical fibres the surgeons only need to make a small incesuion to find and remove the breast cancer theis would mean that recobery time would be reduced and the females physic does not change.
c. Evaluate the benefits of fibre optic technology to medicine
The benefits with fibre optic technology is that it is a lot cheaper to manufacture the instrument this would mean that cost of some procedures would be greatly reduced aswell. Also as I said before the recovery time of the paitent would greatly reduce as they will be able to find the problem using smaller incesions.
Jocelyn bell was in universtiy for two years getting a degree in physics she headed an experiment on quasars she made a radio telescope and she headed the experiment. while doing the experiment she noticed strange radio waves which were too quick to be quasars and in this happenig she discovered pulsars.
The reason that NASA has sent “phoenix” to mars because scientists believe that mars has possiblity that it could support life alien life and also that mars contains water as well as they found that at one of the poles their are canyons bigger than that grand canyon. Also to learn a little about our neighbouring planet.
My personal opinon that “phoenix” will find traces of water on mars and possibly life.
- Walter Adams.
Walter Adams worked with Edwin hubble and Albert enistien to find a theory which explains everything meaning that everything is made of this single thing they call this string theory or the theory with everything.
- Ralph Alpher.
That the big bang occured 14 billion yeras ago
- Robert Dicke.
came about that the futher away an object like the sun is from anohter object the less it’s gravitational force is
- What was Hubble’s involvement in space research?
Edwin Hubble’s involvement in space research is that he discovred a phenomena that the futher apart something is in space the faster it is moving away this came to be Hubbles law
- What does the telescope do?
The hubbles telescope is outer sapce telescope which is currently orbiting around earth. The telescope
allows astronomers to look at galaxies and stars which are light years away and also gives a better quality image than a telescope that is on earth though powerful they don’t give that same detail and quality unlike the Hubble telescope
- Where can the telescope be found?
The telescope can be found orbiting around earth in outer space.
- What is Hubble’s law?
Hubble’s law is that the further away that a galaxy is away from an other galaxy the faster the galaxy is moving away.
