General Awareness

SCIENCE & TECHNOLOGY - May 2015

May 2015

Nov 27, 2018

World's First Gene-edited Babies

A Chinese scientist's claim that he helped make the world's first 'genetically-edited babies', a pair of twin girls, who could be resistant to HIV and other diseases, has triggered controversy, with a group of 122 leading scientists from his country, in a rare move, condemning 'gene editing'.

Nov 21, 2018

India's First VoLTE International Roaming

Reliance Jio Infocomm Ltd. (Jio) launched VoLTE based inbound International roaming between India and Japan.

With this, Jio has become India's first 4G mobile operator to provide VoLTE based international roaming services in India whereby international roamers will be enjoying HD voice and LTE high-speed Data.

Japan-based KDDI Corporation is the first international mobile service provider to avail of Jio's VoLTE calling and LTE data international roaming service which provides international travellers with access to high-speed data and voice services on Jio's all-IP, 4G-exclusive network.

China Launches Five Satellites

China successfully launched five satellites, including four nano-satellites, on a single rocket from a launch centre in the country's northwest Gansu province.

Shiyan-6 satellite and four other microsatellites were launched by Long March-2D rocket and have successfully entered their pre-set orbit.

It was the 292th mission of the Long March rocket series.

Nov 20, 2018

China Adds Two New Satellites

China has added two more satellites to its BeiDou Navigation Satellite System (BDS) which rivals the US Global Positioning System (GPS).

The satellites entered a medium earth orbit and will work with 17 other BDS-3 satellites already in space.

China plans to provide navigation services with the BDS-3 to the Belt and Road partner countries by the end of this year, marking a key step toward a global navigation service.

Nov 17, 2018

Call Drop Benchmark by TRAI

TRAI conducted a call drop benchmark in a drive test on different highway and rail routes. All telecom operators, except Jio failed to meet the call drop benchmark. While network performance of telcos differed on highways, none of them, except RJio, could meet the call drop benchmark on the three rail routes covered under the test.

According to the quality of service rule, not more than 2 percent of total calls in a telecom circle on a network should automatically get disconnected.

Nov 16, 2018

Our New Neighbour

A 'super-Earth' has been discovered orbiting the closest single star to our sun. This breakthrough could shine a light on Earth's nearest planetary neighbours.

Astronomers studied Barnard's Star, a red dwarf just six light years away, practically in our back garden, galactically speaking, and noticed the presence of a frozen, dimly lit world at least 3.2 times heavier than Earth.

The planet, known for now as Barnard's Star b, is the second nearest to Earth outside the solar system and orbits its host star once every 233 days.

Definition of Kilogram Set to Change

Scientists are set to change the way the kilogramme is defined.

Currently, it is defined by the weight of a platinum-based ingot called "Le Grand K" which is locked away in a safe in Paris.

Researchers are expected to vote to get rid of it in favour of defining a kilogram in terms of an electric current.

The decision is to be made at the General Conference on Weights and Measures, in Paris.

Le Grand K has been at the forefront of the international system of measuring weights since 1889.

China's Artificial Sun

Researchers from China's Hefei Institutes of Physical Sciences announced that China's 'artificial sun' became the hottest known nuclear fusion experiment on Earth, literally, with the plasma reaching 100 million degrees Celsius.

For some perspective, our solar system's real Sun is only about 15 million degrees Celsius in comparison.

While that comparison in itself is mind-blowing, the temperature also has another important significance for nuclear energy researchers: 100 million degrees Celsius is thought to be the minimum temperature needed for self-sustaining nuclear fusion on Earth.

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