Robots stand-in for graduating students and other news

BBC Click's Jen Copestake looks at the best of the week's technology stories including:

  • Tesla reveals a prototype of its newly-designed ventilator aimed to help meet the shortage of the devices in hospitals

  • Graduates in Japan are awarded their diplomas via telepresence robots

  • Musicians from the Stay At Home Choir collaborate remotely to perform Vivaldi’s Gloria

See more at Click's website and @BBCClick