August is festival time in Edinburgh, so Alasdair Keane goes behind the scenes at the Royal Edinburgh Military Tattoo to find out how tech makes this spectacular show sparkle. Spencer Kelly finds out how art and tech are working hand in hand to tell compelling stories. Nick Kwek checks out three Fringe shows where the audience takes control.

Click heads to Berlin to explore the latest technology on show at the IFA exhibition and to visit an airport that has been transformed into a tech hub. Also, how doctors are using virtual reality to help diagnose Alzheimer's disease.