Today was cold and rainy, not Marcia's 'cloudy with a chance of meatballs', but enough to prompt me to stay inside and work on my paper for a class I took just before coming to Paris. I did get out mid-day though, heading for the warmth of department stores and a little shopping. Along my way on rue Rivoli, 'electron libre' caught my attention.
Unfortunately there was no plaque nearby to help me identify what it was all about.