Coronaviruses are a group of viruses that cause diseases in mammals and birds. In humans, the viruses cause respiratory infections – including the common cold – which are typically mild. Rarer forms such as SARS,...
Corona Viruse
Monday, February 3, 2020
Drone
An unmanned aerial vehicle (UAV) (or uncrewed aerial vehicle,commonly known as a drone) is an aircraft without a human pilot on board and a type of unmanned vehicle. UAVs are a component of an unmanned aircraft system...
