If he sleeps 8 hours in a 24 hour day, than 8/24 = 1/3. Even if you multiply that by 7 days in a week, it's still 1/3.
Marcel Grossman
Prism
Prism
Not particularly, My father was one of the mathematicians who helped Einstein when He was at the Institute for Advanced Studies in Princeton during the 1950's. The most famous mathematical helpers were Marcel Grossman (in Switzerland) and Nathan Rosen (at IAS).
Well pretty much his only childhood friend was Maja Einstein his little sister. But as he grew up Marcel Grossmann and a few other met up every week. Sorry I can't remember who else!
Marcel Notebaert has written: 'Marcel Notebaert'
Marcel Rasmussen has written: 'Marcel Rasmussen'
Marcel Braitstein has written: 'Marcel Braitstein, sculpteur'
Marcel Hervier has written: '\\'
Marcel Pfister has written: 'Zellenberg'
Marcel Dieu has written: 'Erasme'
Marcel Gosselin has written: 'Delta'
Marcel MOREAU has written: 'Julie'
Marcel Gautschi has written: 'Tennis'
Marcel Labine has written: 'Carnages'
Marcel Dubuisson has written: 'Memoires'
Marcel Christin has written: 'Henri Presset'