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#TechTuesday: Self-repairing screens, bipedal megabots, the secret of ghost particles and other stories

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Motorola files patent for phone that can repair its own screen

Motorola's future phones could be equipped with a self-repair function, enabling users to fix their damaged screens. The patent outlines a "method and device for detecting fascia damage and repairing the same". A number of thermal elements are integrated into the screen and upon activation, heats up and repairs cracks in the class. With an ever-increasing reliance on our touch-sensitive devices, Motorola states that it would be "more advantageous" to have a device that fixes itself, as opposed to having to be replaced.

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The Korean megabot, Method-2

Three years ago, Jin-Ho Yang, CEO of the South Korean firm Hankook Mirae Technology contacted Vitaly Bulgarov with a mysterious inquiry, he wanted to “create something that’s only been possible in comics and films”. Three years after this request, the result is Method-2, the first ever four-metre tall, manned, bipedal robot that can move up to 1.5 tonnes while translating the moments of its pilot. With motor’s being controlled by a Linux operating system, the pilot's movements are sent to the robot's limbs - if the pilot lifts and arm, Method-2 also lifts an arm.

Though it resembles a science-fiction prop, the creators of Method-2 believe that robots like this could become essential in aiding humans navigate the planet’s harshest and most remote environments.

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Bringing justice to victims of violent crime with Shonin bodycam

Discrimination, hate crimes and violence on the rise.The small personal camera by Shonin can be magnetically clipped onto a wearer’s clothes and aims to make the world a safer place. Uploading footage to the cloud automatically, the security camera makes sure that evidence is stored safely. Once the record button is pressed, the camera begins to film – while simultaneously saving footage to the cloud or broadcasting through channels such as Facebook Live. The camera is designed to dramatically reduce the number of instances where attackers are not convicted due to of lack of evidence. It is also meant to act as a deterrent to violence happening in the first place.

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This mega machine is unlocking the secrets of ghost particles

Ghost particles are so light that scientists can't accurately measure their mass. Known as "ghost particles", neutrinos are believed by scientists to form the building blocks of the Universe, but they have long eluded measurement – until now.

Guido Drexlin, Professor of Particle Astrophysics, has devised scales to gauge the weight of “ghost particles”.  Drexlin's Karlsruhe tritium neutrino experiment, known as KATRIN, is a 200-tonne, 70-metre-long line of superconducting magnets and cold traps. It tracks the decay of the radioactive hydrogen isotope tritium, which produces both electrons and neutrinos. While the neutrinos disappear as soon as they are formed, the electrons can be steered by a magnetic field into KATRIN's powerful spectrometer. This controls the speed of travelling particles, allowing Drexlin to analyse their mass as they pass through. Once he knows this number, he can then deduct it from the mass of the original tritium atom. What's left should, in time, decide the weight of ghost particles.

The experiment marks a huge step towards understanding the dynamics of ghost particles and, in turn, the workings of our Universe.

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