This site offers information on inertia and relativity. It begins with a discussion on how this idea evolved and changed over time to become the theory it is today.
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Keywords:Informal Education,Astronomy,Reference Frames,NSDL,Fundamentals,Undergraduate (Lower Division),general relativity,Relativity,Spacetime Fundamentals,Higher Education,Education,mass,Space Science,NSDL_SetSpec_439869,oai:nsdl.org:2200/20090706211231824T,Physics,inertia,reference frames
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