The construction of Europe's largest 3D printed building in 140 hours Thanks to a huge BOD2 printer designed by COBOD International, the Wave House was built, a data center of 600 square meters. Built in a record time of 140 hours in Heidelberg, Germany, the building is currently the largest building of its type in Europe.
South Africa violence and looting South African authorities have sent troops to two provinces as they fight to contain a wave of violence sparked by the imprisonment of former President Jacob Zuma.
Why are there several waves of covid? A very nice little video where he simulates infectious diseases by explaining the different parameters. This makes it possible to understand why a disease or a virus comes and goes.