Essays for Science: Physics

1. A Day Without Geomagnetism

   Imagine, what would have happened, if there had not been earth’s magnetic field. Ships could not have sailed through the oceans, airplanes could not have reached their destinations, birds could not have migrated to new lands and sea animals could...

   • 1759 Words
   • 8 Pages

2. Electrolytes

   Electrolytes are liquids that conduct electricity. Most need to be dissolved into water or another solvent. Battery¡¦s have an electrolyte in them, either as a liquid or as a paste. Liquid electrolytes are used in electrolysis, electroplating, and...

   • 617 Words
   • 3 Pages

3. Electromagnetic Induction

   The phenomenon called electromagnetic induction was first noticed and investigated by Michael Faraday, in 1831. Electromagnetic induction is the production of an electromotive force (emf) in a conductor as a result of a changing magnetic field about...

   • 2608 Words
   • 11 Pages

4. Infrered Detectors

   Cooling<br /> In many cases IR detectors are cooled during use. This cooling effects the spectral response, responsivity and response speed. Spectral response characteristics of PbS, PbSe, and HgCdTe (MCT) shift to the long wavelength side with...

   • 366 Words
   • 2 Pages

5. Rocketry

   A rocket is a device that does not need atmospheric oxygen to burn its fuel, since it carries it’s own, either separately or in chemical combination with fuel. Rockets are propelled forward by gas or liquid being expelled backwards. Rockets work...

   • 936 Words
   • 4 Pages

6. The Big Bang

   It is always a mystery about how the universe began, whether <br /> <br /> if and when it will end. Astronomers construct hypotheses called <br /> <br /> cosmological models that try to find the answer. There are two <br /> <br /> types of...

   • 1608 Words
   • 7 Pages

7. The Universe

   What lies beyond our planet. The universe that we live in is so diverse and unique, and it interests us to learn about all the variance that lies beyond our grasp. Within this marvel of wonders our universe holds a mystery that is very difficult to...

   • 1059 Words
   • 5 Pages

8. Werner Heisenberg and the Heisenberg Uncertainty Principle

   Werner Heisenberg, born in the dawn of the twentieth century became one <br /> of its greatest physicists; he is also among its most controversial. <br /> While still in his early twenties, he was among the handful of bright, <br /> young men who...

   • 4823 Words
   • 20 Pages