“There is nothing noble in being superior to some other man. The true nobility is in being superior to your previous self.” Probably W.L. Sheldon, US lecturer on ethics (1858 – 1907) rather than Ernest Hemingway.
Monday, 16 March 2015
Energy harvesting trees
Scientists at VTT Technical Research Centre of Finland Ltd have developed a prototype of a tree that harvests solar energy from its surroundings