Scientists unlock wireless charging for airborne drones

Using inductive coupling, scientists have made a breakthrough that allows them to wirelessly transfer power to a drone while it is still flying. The technology could open up a host of possibilities, including allowing drones to fly indefinitely, simply hovering over a ground support vehicle when in need of a recharge.

Inductive coupling is a concept originally demonstrated over 100 years ago by Nikola Tesla, the principle being that by tuning two copper coils into each other with electronics, you can enable the wireless exchange of power at a certain frequency.

Inductive coupling has been experimented with for decades, but until now researchers have failed to utilise the technology to wirelessly power flying devices.

The researchers behind the breakthrough, from Imperial College London, demonstrated their method by altering the electronics and removing the battery of an off-the-shelf quadcopter drone.

A receiving antenna was made by encircling the drone’s casing with a copper foil ring, and a transmitter device on the ground was made out of a circuit board and connected to electronics and a power source, creating a magnetic field. The researchers believe that this is the first demonstration to show how this wireless charging method can be efficiently used with a flying object, and expect it to open up a range of potential applications.

“Imagine using a drone to wirelessly transmit power to sensors on things such as bridges to monitor their structural integrity,” explained Professor Paul Mitcheson, from the Department of Electrical and Electronic Engineering at Imperial College London. “This would cut out humans having to reach these difficult-to-access places to re-charge them.

“Another application could include implantable miniature diagnostic medical devices, wirelessly powered from a source external to the body. This could enable new types of medical implants to be safely recharged, and reduce the battery size to make these implants less invasive.”

Images courtesy of Imperial College London

Images courtesy of Imperial College London

Drones are currently limited in their commercial usage by the distance they can travel and the duration for which they can do so.

Despite growing possibilities for usage, the limited availability of power and re-charging requirements means that it is hard to make full use of drones in their capacity for roles such as surveillance or search and rescue. The development of efficient wireless power transfer technology would solve these endurance problems and enable a wide range of advancements.

“In the future, we may also be able to use drones to re-charge science equipment on Mars, increasing the lifetime of these billion dollar missions,” added Mitcheson.

“We have already made valuable progress with this technology and now we are looking to take it to the next level.”

For now, the technology is still very much in its infancy and the Imperial team’s technology only allows the drone to fly ten centimetres above the magnetic field transmission source.

However, they are now exploring collaborations with industrial partners, and have estimated that a commercially available product could be ready in a year.

The sky could soon be filled with electric sky taxis

An electric jet has been successfully tested in Germany, but Lilium, the company behind it, says it has plans to launch a five-seater driverless sky taxi service. "The sky has a lot more capacity than the ground, and we don't have to build additional infrastructure,," said Lilium's co-founder, Daniel Wiegand

Source: BBC

IBM's Watson lends its brain to hospitals and offices

IBM's Watson Internet of Things (IoT) unit has teamed with audio giant Harman's Professional Solutions group to create an AI – dubbed Called Voice-Enabled Cognitive Rooms – that is able to respond to voice commands and questions based specifically on the context of the room its sensor is located in.

Source: Ars Technica

Scientists think pacemakers for the brain can help memory

Scientists have reported that well-timed pulses from electrodes implanted in the brain can enhance memory in some people. The claims amount to the most rigorous demonstration to date of how a pacemaker-like approach might help reduce symptoms of dementia, head injuries and other conditions.

Source: BBC

Mastercard unveils credit card with a fingerprint sensor

A payment card featuring a fingerprint sensor has been unveiled by Mastercard, the credit card provider. Mastercard's chief of safety and security, Ajay Bhalla, said that the fingerprint technology would help "to deliver additional convenience and security. It is not something that can be taken or replicated."

Source: BBC

Alphabet enlists 10,000 volunteers to find out why people get sick

Verily, which used to be Google Life Sciences, and is part of Alphabet, is launching a four-year study called Project Baseline to find out why people get sick. 10,000 participants from diverse backgrounds will take part in the study at half a dozen study sites in California and North Carolina.

Source: Wired

India's space agency plans to mine energy from Moon by 2030

The Indian Space Research Organisation , plans to mine Helium-3 rich lunar dust, generate energy and transport it back to Earth. This lunar dust mining plan comes after India revealed plans to cut the nation's dependence on imported hydrocarbons by 10 percentage points by 2022.

Source: Live Mint

Want to learn how to be an office don? Start playing World of Warcraft

A new study has found that gamers who work well in a team during “raids” while playing World of Warcraft (WoW) develop qualities that allow them to excel in the workplace.

Basically, all that time your parents said was wasted playing video games, you were actually training to become a better worker than the guy who spent his internship fetching coffee.

The study, conducted by researchers at the Missouri University of Science and Technology, surveyed WoW players from across a multitude of servers.

Those surveyed were diverse in age, race, sex, class, occupation and location, and on average played WoW eight hours a week  and worked 38 hours a week, a factor which was of particular interest as the researchers wanted players with full-time jobs requiring teamwork.

“What we wanted to look at was virtual teamwork and what kind of characteristics a person had in-game that would translate to real life and the workplace,” said Elizabeth Short, a graduate student in industrial-organizational psychology who compiled data for the study.

The skills provided by managing to properly work together to bring down the Lich King are obvious in some aspects – computer-mediated communication skills and technology readiness were highlighted by researchers for example – but a more notable discovery was how WoW raiding develops, what the study refers to as, the Big Five personality traits: extraversion, agreeableness, openness,  conscientiousness and neuroticism.

The survey’s respondents were each asked 140 questions about motivation, communication skills, preferences for teamwork and personality, with most questions relating to the Big Five personality traits.

By comparing the players’ survey answers to their characters’ statistics, players gained group achievement points based on how much group gameplay they participated in and how successfully the researchers were able to find small but “statistically significant” correlations.

Fairly predictably, the correlation that stood out as one of the strongest was that of “technological readiness”.

It’s fairly obvious using tech to play WoW would stand you in good stead in a modern workplace, and it’s probably no surprise that desperately trying to keep your DPS alive while people determinedly attempt to lone wolf an entire raid is going to give you a certain resilience when it comes to dealing with technology.

“The more technologically ready you are, the more resilient around technology you are, the more adaptable you are, the more achievement points you have (in WoW),” said Short.

“The more achievements you have in game, the more technology savvy you are in real life. And that’s a good thing, especially in virtual communication teams and workplaces.”

The research stemmed in part from Short’s own past experience as a member of the WoW community and she has stated that she hopes to take the positive growth she took from the game and use those transferable skills to help others in the workplace.