March 17, 2019, 11:24 p.m.
tutti - social network
Tutti is the simplest social network on internet. Here you can make friends, create communities, sell things, make surveys, comment and share stuff.
Ahora si,tengo mi nuevo tablet.Le falta el precio del envio de retorno del otro de marca Acer,mas o menos 25$,en las politicas de retorno decian que si es defectivo,te lo devuelven.
Researchers have made significant efficiency improvements to the technology used to generate solar fuels. This involves the direct conversion of energy from sunlight into a usable fuel (in this case, hydrogen). Using only earth-abundant materials, they developed the most efficient conversion method to date. The trick was to decouple the site where sunlight is captured from the site where the conversion reaction takes place.https://www.sciencedaily.com/releases/2018/01/180115121641.htm
