Papers

 Papers for undergraduate physics classes at U.Va and University of Bath

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The links on the right are to the full papers which go with the abstracts below:

 Non-Newtonian Fluids:

Newtonian Fluids, such as water, are encountered daily and are well understood by people from many disciplines. Non-Newtonian fluids are less common and less easy to understand, so they have not been studied as much. For this paper I am going to revisit the principles of Newtonian fluids in some detail before trying to understand any others, then I will talk about how non-Newtonian fluids differ and the different types of Non-Newtonian fluids. Finally I will be talking about current experiments and looking at some future research in the field.

 Bose-Eistein Condensation:

10 years ago the first Bose- Einstein condensate was made in a laboratory at the University of Colorado, giving a glimpse of a purely quantum mechanical effect in action. Atomic Physicists hope that the implications and techniques of Bose-Einstein Condensation stretch way beyond their new science, and into wider usage in other areas of physics.

Holography:

This report contains holograms made by the Leith-Upatnieks and Gabor methods. All the holograms were recorded using a Class III Helium-Neon laser with a red light wavelength calculated as λ = 685±55nm using a  diffraction grating made by this laser.

 Zeeman Effect: 

 This experiment contains the measurements of the normal Zeeman shift of the spectral lines of mercury at λ = 546nm, 436nm and 404nm, in fields of up to 18kGauss. The ratio of the Bohr magnetron and the fundamental constants hc was calculated as u0/hc=4.89±0.10×10−5cm−1/Gauss . The mercury source did not exhibit any line splitting from the nuclear spin because it used an isotope where this effect was not present.

Atomic Spectroscopy:

 This report contains graphs of the atomic spectra of the following elements; Hydrogen, Helium, Neon, Mercury, Sodium and Rubidium. It also contains the emission spectra for LED's, filament lamps, blackbody radiators and absorption spectra for sodium and accurate filters. Using the Balmer series of hydrogen emission lines, the value of  the Rydberg constant, RH is calculated as 1.086±0.022 x107 m- 1 and the atomic (Bohr) radius as 0.533±0.11Å. The energy levels corresponding to the values of n=3,4,5… are calculated and an energy diagram is included which shows the transitions from these to the n = 2 state.

Non-Newtonian Fluids

NNF Presentation

Velocity Profile

Bose-Einstein Condensation 

Holography

Zeeman Effect

Atomic Spectroscopy

Scanning Probe Microscopy

Computational HW8

Computational HW9

Hubble's Constant and Masers 

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