In Nice, Berlin, Barcelona and other cities, trucks have been used to carry out terror attacks. As a result, demand for bollards has risen. The Zabag security engineering company in eastern Germany specializes in products such as bollards.

Surveillance cameras are everywhere. Computers can identify us by our facial features, fingerprints or simply by the way we walk. DW investigates how a digitalized economy could serve the country’s security.

DW style guru Gerhard Elfers recommends avoiding off-the-peg suits. His advice: Buy the good stuff cheaply when it’s on sale. But if that advice didn’t reach you in time, don’t despair! There are ways to make even a bad suit look better.

Germany has sophisticated IT technology but it’s having trouble going global. Google and the like are too powerful. Norbert Pohlmann of the Institute for Internet Security at the Westphalia University of Applied Sciences Gelsenkirchen shares his views.

Lots of people work as freelancers for peanuts in start-ups and media firms in the hope their breakthrough is imminent. Many don't even make the minimum wage and their breakthrough never comes. Why this willingness to let themselves be exploited?

Software that carries out tasks by itself sounds like sci-fi, but increasingly, it's part of everyday life – from self-driving cars to intelligent homes. For now, most smart technology is still designed in the US. Germany has some catching up to do.

Ricardo Ferrer Rivero is the founder of PEY, a blockchain mobile payments system. He's even had a microchip implanted in his hand to show how it could be used to make fast and easy payments.

Blockchain technology has the potential to revolutionize the world of finance, rendering banks, notaries and licensing rights authorities obsolete. How does it work?

Certain people claim the switch to renewable energy sources is ruining German industry. Energy economist Claudia Kemfert has written a book revealing how the fossil-fuel lobby is using PR campaigns to prevent the future phasing-out of coal.

Germany exports a large amount of environmental technology, providing 15% of the global market. A growing number of companies in the country are converting operations to make them ecologically safer. Is this greenwashing or genuine commitment?