deletions | additions       diff --git a/Abstract.tex b/Abstract.tex  index 3715aa5..78b3aec 100644  --- a/Abstract.tex  +++ b/Abstract.tex 
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Using an antenna to generate whistler waves in a plasma using helium a source gas and a magnetic field probe to measure perturbations in the magnetic field, a biased disc was placed in front of the wave generator to create ducting.The index of refractions, $\eta$, were measured and compared to theoretical values .  A simulation was also created using exact theory to compare with measured results.The measured results were found to be $\pm (some amount) $ off of the theoretical value.