Luke Cole, founder and CEO of engineering and IT company ColeTEK, talks us through his various business activities. In Part 1, he discusses using drones to fight sea urchins on the Great Barrier Reef, 3D printing as an alternative to injection moulding and designing robots to improve safety for the German car industry.

Luke Cole, founder and CEO of engineering and IT company ColeTEK, explains more of his varied business activities. In Part 2, he discusses IT security, penetration testing, electronics engineering and what he likes most about his job.

X-rays reveal a design issue in fitting the battery into the enclosure, as the unfolding disaster threatens Samsung's share price and profits.

Our weekly news round-up: Adobe's Rigel project - a free mobile app with real Photoshop functionality and integration with the desktop; Fighting killer bugs with devils' milk; ExoMars orbiter and lander arrive at Mars; Exodus from Yahoo's online email service; Algorithm to replace contraceptive pill; Coen Brothers' write flick about dark web and Silk Road; Julian Assange's internet cut off.

X-rays reveal a design issue in fitting the battery into the enclosure, as the unfolding disaster threatens Samsung's share price and profits.

Our weekly news round-up: Adobe's Rigel project - a free mobile app with real Photoshop functionality and integration with the desktop; Fighting killer bugs with devils' milk; ExoMars orbiter and lander arrive at Mars; Exodus from Yahoo's online email service; Algorithm to replace contraceptive pill; Coen Brothers' write flick about dark web and Silk Road; Julian Assange's internet cut off.

X-rays reveal a design issue in fitting the battery into the enclosure, as the unfolding disaster threatens Samsung's share price and profits.

We review the UK's popular Babylon app. It can produce a faster and more accurate diagnosis than a conventional medical consultation. It's proved useful in Rwanda, where there are plenty of smart phones but not enough doctors.

Changes in the strength and timing of a wifi signal can reveal the movement of people within a building and even monitor speech by lip reading.

We review the UK's popular Babylon app. It can produce a faster and more accurate diagnosis than a conventional medical consultation. It's proved useful in Rwanda, where there are plenty of smart phones but not enough doctors.