Kurze Analyse der Ölpreisituation in 2014. Wiedervorlage in 3 Monaten, 6 Monaten.
https://medium.com/@dalarossa/oil-crisis-explained-in-3-minutes-60c252fa96f7
Energy
Sunlight converted to electricity with over 40 percent efficiency outdoors using commercial solar cells in a new way
Sunlight converted to electricity with over 40 percent efficiency outdoors using commercial solar cells in a new way http://nextbigfuture.com/2014/12/sunlight-converted-to-electricity-with.html