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NASA develops electroactive bandage

The National Aeronautics and Space Administration (NASA) developed a high-tech electroactive bandage. 
●    The bandage creates an electric charge to help promote the healing process of wounds.
●    Electroactive material is so sensitive that a push or even a blow on it can create an electric charge.
●    The fibres of the guaze are made of electroactive material Polyvinylidene Fluoride (PVDF).
●    The bandage is stimulated by the heat of the body and the pressure of cell growth. 
●    Therefore, no external power source is required in order for the bandage to promote wound healing.
●    The device uses electrical activity to facilitate the wound healing process while protecting the wound.
●    The bandage also minimises infection and related complications such as illness or amputation.

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Stable Perovskite Nanocrystal Solar Cell Produced by Indian

A researcher from Pune’s Indian Institute of Science Education and Research (IISER) has successfully produced a stable, high-efficiency, all-inorganic perovskite nanocrystal solar cells. 
●    The new material has 10.77% efficiency to convert sunlight to electricity.
●    The results were published on October 7 in the journal Science.
●    Traditional research has been around a hybrid organic-inorganic halide perovskite material.
●    The researchers assembled the nanocrystals as a thin film. 
●    The thin film was used for making both solar cells and red LEDs. 
●    Solar cells made using the nanocrystal thin film has 10.77 per cent efficiency to convert sunlight to electricity and produce a high voltage of 1.23 volts.

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New Material used to Manufacture World's Smallest Transistor

Scientists have succeeded in creating the world's smallest transistor, producing a switch with a working 1-nanometre gate. 
●    Unlike regular transistors, the researchers' new prototype isn't made out of silicon – and the smaller size means we can still improve performance in integrated circuits by populating them with greater amounts of incredibly small components.
●    And it could help us keep Moore's Law alive too.
●    Named after Intel co-founder Gordon Moore, Moore's Law predicts that the amount of transistors in an integrated circuit will double approximately every two years, enabling more complex and powerful computer processors.
●    ‘ Unfortunately, transistors have already gotten so small, we're running out of ways to make them smaller. But now, thanks to a team of researchers at the University of California, Berkeley, we've gotten past the 5-nanometre threshold that was previously considered to be the peak of transistor miniaturization.’
 

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GSAT 18 successfully launched

India on 6 October 2016 successfully launched the communication satellite GSAT-18. The satellite was launched by a heavy duty rocket of Arianespace from the spaceport of Kourou in French Guiana.
●    The European launcher Ariane-5 VA-231 injected GSAT-18 into a Geosynchronous Transfer Orbit (GTO) shortly after orbiting co-passenger Sky Muster II satellite for Australian operator, National Broadband Network.
●    After its injection into GTO, ISRO's Master Control Facility (MCF) at Hassan took control of GSAT-18 and performed the initial orbit raising maneuvers using the Liquid Apogee Motor (LAM) of the satellite, placing it in circular Geostationary Orbit.
●    GSAT-18 is designed to provide continuity of services on operational satellites in C-band, Extended C-band and Ku-bands.
●    Weighing 3404 kilograms at lift-off and having a mission life of about 15 years, GSAT-18 will strengthen ISRO's current fleet of 14 operational telecommunication satellites.

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New Multiferroic material discovered to make computers 100 times more energy efficient

Researchers including one of Indian-origin have engineered a material that could lead to a new generation of computing devices, packing in more computing power while consuming nearly 100 times less energy thant today's electronics require.
●    Electronics are the fastest-growing consumer of energy worldwide.
●    Five per cent of total global energy consumption is spent on electronics, and that's projected to grow to 40-50 percent by 2030.
●    Known as a magnetoelectric multiferroic material, it combines electrical and magnetic properties at room temperature and relies on a phenomenon called "planar rumpling."
●    The new material sandwiches together individual layers of atoms, producing a thin film with magnetic polarity that can be flipped from positive to negative or vice versa with small pulses of electricity.

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Largest Dinosaur Footprint in Gobi Desert Found

One of the biggest dinosaur footprints ever recorded has been unearthed in the Gobi Desert, researchers said today, offering a fresh clue about the giant creatures that roamed the earth millions of years ago.
●    A joint Mongolian-Japanese expedition found the giant print, which measures 106 centimetres long and 77 centimetres wide.
●    One of several footprints discovered in the vast Mongolian desert, the huge fossil was discovered last month in a geologic layer formed between 70 million and 90 million years ago, researchers said.
●    It was naturally cast, as sand flowed into dents that had been left by the creature stomping on the once muddy ground.
●    The footprint is believed to have belonged to Titanosaur, a long-necked dinosaur, and could have been more than 30 metres long and 20 metres tall, according researchers.

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FAST - World'sLargest Radio Telescope Built in China


China has built world’s largest radio telescope nicknamed Tianyan (Heavenly Eye” or “The Eye of Heaven) or the five-hundred-metre aperture spherical radio telescope (FAST). 
•    It has started its operation and is part of China’s drive to become a science powerhouse. 
•    It is located in the Dawodang depression (vast natural crater), a natural basin in Pingtang County in the Guizhou Province, Southwest China. 
•    With its opening, the intensive testing phase of the telescope will begin. 
•    It will take nearly three years to calibrate the instruments of telescope to become fully operational. 
•    The facility is part of China’s drive to become a science powerhouse. It is an ambitious project of the National Astronomical Observatories of China. 
•    It is made up of 4,450 panels and has reflector as large as 30 football pitches. It has 500 meters diameter, giving it more sensitivity. 
•    It will be also used to study stellar radio emissions, gravitational waves and potentially signals from extraterrestrial civilizations. China’s best supercomputers the SkyEye-1 will be used to process the massive amounts of data supplied by FAST.

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Google launches instant messaging mobile app Allo

Google on 21 September 2016 launched its latest mobile chat application, Allo, along with Google Assistant that can be used in online conversations with friends.
•    Allo's ‘Smart reply’ function uses Google's machine learning technology to suggest a reply to the last message, which can be selected from a few options.
•    The feature also analyses images sent to the user in order to suggest responses.
•    Similar to the smart reply feature seen in Google's Inbox app, it learns from the user's behaviour to adapt its suggestions over time.
•    It supports Google Assistant, a conversational virtual assistant.
•    A feature ‘Whisper Shout’ allows the user to increase or decrease the size of a message to represent volume.
•    Allo also lets users draw on photos before sending them.
•    Incognito mode is an optional mode that includes expiring chats, private notifications, and end-to-end encryption.
•    For encryption, the app uses the Signal Protocol.


 

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Mars Orbiter Completes 2 Years


Initially, the life of the Indian Mars orbiter was estimated to be about six months after insertion into the Martian orbit. 
•    As Mangalyaan completed its two years in Mars orbit, the Indian space agency has released first year of MOM Long-term archive data to public.
•    MOM, which is India’s first interplanetary mission, is orbiting around Mars in an elliptical orbit of about 343 km x 71191 km as on 16th September 2016, says ISRO’s data release statement.
•    MOM is a complex technological mission considering the critical mission operations and stringent requirements on propulsion, communications and other bus systems of the spacecraft.
•    Thus, India created history as the first Asian nation to reach Mars orbit, and the first country in the world to do so in its first attempt.
 

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World's Largest Solar Powered Plant at Kamudhi, Tamil Nadu

Adani Green Energy, part of the Adani Group, Wednesday said it has dedicated to the nation the world's largest 648-mw solar power plant in Tamil Nadu entailing an investment of Rs 4,550 crore. 
•    The solar power plant, producing 648 mw at a single location, was formally dedicated to the nation, a company statement said.
•    The plant is set up at Kamuthi, Ramanathapuram, in Tamil Nadu with an investment of Rs 4,550 crore. 
•    It is part of the state government's ambitious target of generating 3,000 mw as per the solar energy policy unveiled by the government in 2012.
•    The entire 648-mw plant is now connected with Kamuthi 400 kv sub-station of Tantransco, making it the world's largest solar unit at a single location, it said.
•    The plant consists of 3.80 lakh foundations, 25 lakh solar modules, 27,000 mt of structure, 576 inverters, 154 transformers along with 6,000-km cables.
•    About 8,500 personnel worked for an average about 11 mw of installation in a day to set up the plant in the stipulated time, it said.
 

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