No beamer in front of the stage

An emergency call to all event organizers. Please, no beamers in front of the stage.  The stage is for a speaker; They use the whole stage and need professional sound AND lighting.  I hear often; there is no light. Otherwise, the audience can not see the beamer. Stop...

Robot as a Doctor

  If you feel ill, would you go to a robot doctor?   There is a robot in China, Xiao Yi,  that has passed China’s medical licensing exam by 96 points. researchers filled its brain with medical textbooks It also learned clinical  experience and case...