• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Exploring Cosmology

Extracts from this document...

Introduction

Exploring Cosmology

June 2, 2008

image00.png


Shan Goonewardena

June 2, 2008

Science, Grade 10

Exploring Cosmology

From the dawn of time, human beings have always been fond of exploring and learning more about space and its contents. From the beautiful galaxies to the different types of nebulae, there is so much information out there that we do not know about. Cosmology is the study of the history of the universe from the perspective of physics. It addresses questions in a very large quantity, questions like: what is the size of the universe of how old the universe is. These questions can be answered through cosmologists or people who study Cosmology. Cosmologists’ work to understand on how the Universe came into being or what is going to happen in the future. They make enormous observations using telescopes and as the technology gets better, the cosmologists have a better chance of answering these questions.

        The Hubble telescope was a break through in the study of Cosmology (Reference 1). Due to the large mirror installed on the telescope, the clarity of the picture was better. And a picture is worth a thousand words. It was a telescope like no other. The Hubble Telescope is not the only way to explore space; we can still investigate on the subject of spaceby giving off radio waves that can be detected with radio telescopes.

...read more.

Middle

        When exploring space, there is an infinite of stuff out in space and something we do know about space are pulsars. A pulsar is a neutron star, which releases beams of radiation that sweep through the earth's line of sight. Like a black hole, it is an endpoint to cosmological evolution. The, “pulses,” of high-energy radiation we see from a pulsar are due to a misalignment of the neutron star's rotation axis and its magnetic axis (Reference 4). Pulsars pulse because the rotation of the neutron star causes the radiation generated within the magnetic field to sweep in and out of our line of sight with a regular period. Wavelengths from Pulsars give scientists important clues to how the radiation is created. Black holes are similar to Pulsars but they are quite different because they both are very unique objects.

        Black holes have always had the reputation to be one of the “most talked about topics” in Cosmology. Black holes are imaginary entities predicted by the equations of general relativity. A black hole is formed when a star of undergoes a gravitational cave in, with most or all of its mass packed together into a satisfactorily small area of space, causing endless space-time curvature at that point. Such a massive space-time curvature allows nothing, not even light, escaping from its borders (Black Holes).

...read more.

Conclusion

Works Cited

The Big Bang Theory. Big Bang. Windows Team. 2 June 2008 <http://www.windows.ucar.edu/tour/link=/sun/Solar_interior/Nuclear_Reactions/Neutrinos/big_bang.html&edu=elem>.  

Edwin Hubble. Photographs of Edwin Hubble. The Association of Universities for Research in Astronomy. 2 June 2008 <http://opostaff.stsci.edu/~levay/presres/ehubble/>.  

The Expansion of the Universe. Weird. CondéNet. 2 June 2008 <http://www.wired.com/techbiz/media/news/2006/03/70425>.  

The Hubble Telescope. New Hubble Telescope Mission. WordPress Entries (RSS). 2 June 2008 <http://www.focks.com/science-technology/new-hubble-telescope-mission/>.  

"Inflationary Model." National Aeronautics and Space Administration. 2008. NASA. 2 May 2008 <http://map.gsfc.nasa.gov/universe/bb_cosmo_infl.html>.  

Pulsars. Pulsars. I.P Board. 2 June 2008 <http://maniacmuslim.com/forums/index.php?showtopic=9775&pid=919336&st=0&#entry919336>.  

"Stephen Hawking." www.hawking.org.uk. 2007. Random House Children's Book. 2 June 2008 <http://www.hawking.org.uk/home/hindex.html>.  


References

Reference 1: The Hubble Telescope

image01.jpg

Reference 2: The Big Bang Theory

image02.png

Reference 3: Edwin Hubble

image03.png

Reference 4: Pulsars

image04.png

Reference 5: Inflationary Model

Reference 6: The Expansion of the Universeimage05.png

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Physics essays

  1. Telescopes - science research project.

    The next generation telescopes will not also add the detection of planets downcast to Earth, like objects through unintended calculations of the shaking movement of the stars disturbed by the planets that path them, but also having the straight photography of greater planets and likely the description of the environment.[12]

  2. Waves and Radiation NOTES

    Ultra-violet = Not visible to humans, but visible to insects, absorbed by the Earths ozone layer and causes sunburns and skin cancer. Light = AKA visible light, only visible part of spectrum that our eyes can detect, provides all energy needed to maintain life on earth.

  1. Verification of the earth's gravitational field strength

    To find the average for the 20 oscillations we will add the three trials for each length and divide them by 3. To find the average oscillation we will divide our answer by 20. E.g. for 0.5m average for 20 oscillations -->(29.94+29.92+29.90)/3=29.92 Average for 1 oscillation= 29.92/20= 1.50 (All results to two decimal places).

  2. Space exploration and society

    Other daily life things -solar panel electricity, fuel cells, mobile phones, braces, fog less goggles, flat screen television, smoke-detectors, a water purification system that now is used by most of the people on earth, scratch-resistant glasses, thermo-wear for skiing, was also developed to space missions by NASA.

  1. The weakest force of the universe

    The strong force also acts between protons and neutrons in an atomic nucleus much in the same way that simple chemicals are held together by the electric force. The strong force binds the two protons with about 25-35 MeV of energy.3 The body of data describing the strong force between

  2. HL Physics Revision Notes

    Cyclical changes in the Earth?s orbit Volcanic activity Continental drift affecting the ocean currents and winds Enhanced greenhouse effect refers to additional warming due to increased quantity?s of greenhouse gases in the atmosphere. The increases in the gas concentrations are due to human activity.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work