engineering.com - (Image courtesy of Nanyang Technological University.) Sand, water, cement and gravel. Those are the ingredients that make up concrete, one of the most ubiquitous building materials on the planet. S...
Tweeted by @ENGINEERINGcom https://twitter.com/ENGINEERINGcom/status/766418188116557824
from Electrical Engineering Daily Dose http://ift.tt/2bDaL6X
No hay comentarios:
Publicar un comentario