Home › Forums › setting the stage › advantages question 3 › Difference This topic has 0 replies, 1 voice, and was last updated 2 years, 2 months ago by abhoopal. Viewing 1 post (of 1 total) Author Posts October 4, 2022 at 6:46 pm #6882 abhoopalParticipant The difference is that the laws governing the bridge are completely known and have been tested before. The laws governing a superconducting material are not completely known or solvable. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In