I recently read a summary of a research paper that described some theoretical work that had been done. The theoretical work stated that electromagnetic waves will "stiffen" Space-Time. I haven't been able to locate the actual paper or re-locate the summary so I was wondering if anyone else was aware of this work. Also, I was wondering what everyone else's thoughts would be if this theory is true. For example, I was wondering if such a theory could lead to electromagnetic shields like those found in Star Trek. Everyone's input is welcome and hoped for.