human history, the original primary impression left by cobalt was a visual one. It was used as a glaze for ceramics in Syria, Iran and China and as a dye ... beginning of human history. For thousands of years it was mainly used to make jewellery and as a means of payment, an investment and a reserve currency. ... resources are increasingly becoming the focus of global interest. We took a close look at the most important natural resources for the tech sector. Lithium

In the US, for instance, a child got into conversation with Amazon's Alexa and ordered a dolls’ house. The case was reported by a TV station. When the news ... out the sentence "Alexa ordered me a dolls’ house", the assistants of a few viewers promptly attempted also to order a dolls’ house. To avoid unwanted orders ... says Theike. If you are toying with the idea of buying a smart device , you should really take a very close look at its functions in advance. And you shouldn’t

can’t recognise at first glance whether, for example, a Twitter account is being operated by a person or a computer program. Social bots react, for instance ... personal ID cards. But if a password is used, then it should always be a secure one, consisting of at least eight characters with a mix of upper- and lower-case ... should of course start by casting a critical eye over a news story rather than simply sharing it. After all, once such a story gets out there and continues

for instance, on a concept called TetraSpar: This is based on a radically simplified and industrially manufactured float shaped like a pyramid, with tower ... Atlantic project off the coast of Portugal relies on a similarly solid construction. It was there that a consortium led by the Portuguese energy supplier EDP ... turbines is likely to have to change too. Instead of simply locking a normal wind turbine to a float that is made to be as rigid as possible, the turbines could

for information of a world which was fast becoming globalised. And yet, even with all its benefits, the telegram remained as exclusive a medium as it was ... American inventor had filed a provisional patent application back in the years 1871 to 1873 but had been unable to maintain it due to a lack of financial means ... first ever telephone conversation in Germany took place using a Bell apparatus. This used a microphone to convert sound into electrical signals which were

This is analogous to a mass of rising dough in which the raisins are moving further and further away from each other. Or dots on a balloon that move further ... Georges Lemaître coined the term “singularity” in 1927 and started a new chapter of the history of the cosmos with the idea of the Big Bang. According to this ... galaxies had been compressed to the size of an orange. Then, within a few fractions of a second, the compressed energy expanded at infinite speed from an

of the show will be a “Showman's Engine”: this road-going steam locomotive served English showmen not only as a tractor, but also as a power generator to ... topics of the 60 sessions: How can the transformation to a smart factory succeed? Where is it already a reality, and what can be learned from it? How can today’s ... discovered their inner camper. If you’re now flirting with the idea of buying a motorhome yourself or have already decided to invest in one, then the CMT in

iPhone. A holiday without Wi-Fi: Is that a dream or a nightmare? It's a dream I'm working on right now. In the #explore format we’re giving a regular voice ... you like a household robot? I still like to cook for myself, especially as a nice way of rounding off the evening ... although I’d love to have a friendly ... 09 April 2020 Hardly any other transport system has a history as long as shipping. This also applies to various methods used on board: As has been the

and, as you do so, find out what appeals to you most: a hub motor, a centrally positioned motor or a power or motion sensor. Once all your questions about ... 4 December 2019 Have a go on an e-bike, admire some automotive rarities, find out about start-ups, hang out together or have a go at hacking the Internet ... Internet of Things: A few events await those of a curious disposition and tech lovers between January and March 2020. We present our calendar of events. Dresden:

able to come up with a universal answer in the sense of a monocausal explanation. You worked in the gaming industry yourself for a few years. What kind ... having a higher proportion of women developers mean that the games attract more women? The Sims game has a really interesting development history, which ... don't know... I’ll have to get back to you on that... A holiday without Wi-Fi - is that a dream or a nightmare? I can happily do without broadband on holiday