Current Affairs Quiz - April, 2019

Notes:
On April 1, ISRO has successfully launched India’s latest EMISAT defence satellite from the Sriharikota spaceport. In today’s mission, the rocket PSLV-C45 flew in a new configuration called “QL”. In this configuration, the rocket is fitted with four longer versions of strap-on motors that provide the vehicle the required additional thrust. Earlier, the rocket used to be in “XL” version with six strap-on motors or two or with no strap-on motors known as core alone configuration. The PSLV-C45 successfully injected EMISAT in a 748-km sun-synchronous polar orbit and 28 international customer satellites in a 504-km orbit. Of these, 24 are from the US, two from Lithuania, and one each from Spain and Switzerland. EMISAT is a satellite built around ISRO’s Mini Satellite-2 (IMS-2) bus weighing about 436 kg. The satellite is intended for electromagnetic spectrum measurement.

Notes:
The 13th edition of Earth Hour 2019 was observed on March 30 with theme “#Connect2Earth” to encourage people across the world to turn off non-essential electric lights for one hour from 8:30 to 9:30 p.m. It calls for greater awareness and more sparing use of resources, especially fossil fuels that produce carbon gases and lead to global warming. On this day, the World Wide Fund (WWF) for Nature-India made an appeal to citizens to join the Earth Hour 2019 to inspire millions across the country to shift to more sustainable practices and minimize negative impacts on the planet.

Notes:
Vadodra-based artist Raju Baraiya has been chosen as the Glenfiddich’s Emerging Artist of the Year 2019. He will represent India at the Glenfiddich Artists in Residence (AiR) programme where he will spend three months at the Glenfiddich Distillery in Scotland with artists from around the world. Baraiya will also be awarded Rs 10 lakh, which includes an international allowance of Rs 1,20,000 per month and a work allowance of Rs 5,00,000; besides being given a solo show at Art District XIII Gallery in New Delhi. Baraiya’s work takes inspiration from observing and diagnosing the rural in relation to the urban and vice-versa. His practice springs out of this shift from a strong rural background to an urban one. The artist has been deriving imagery from these seemingly ambiguous notions of the urban and the rural, and the complexities between the two spaces create a common meeting ground for him to explore through an impression he holds of them. With his art, he aims to translate the ever evolving image of this convergence.

Notes:
J Mahendra (79), the veteran filmmaker, screenwriter and actor, has passed away in Chenai, Tamil Nadu on 2nd April 2019. He was known for infusing realism in Tamil cinema and for giving superstar Rajinikanth his career breakthrough with “Mullum Malarum”. He started his journey in the movies as a screenplay writer and made his directorial debut with 1978 film “Mullum Malarum”. The director’s popularity peaked with his movies “Uthiri Pookkal” (1979) and “Nenjathai Killathey” (1980). In the past few years, Mahendran had switched to acting. He played pivotal parts in “Kamaraj” (2004), “Petta” opposite Rajinikanth and Vijay’s “Theri”. He was last seen in Tamil film “Boomerang”, which released on March 8. Mahendran was also the founding member of Blue Ocean Film and Television Academy here.

Notes:
China has successfully launched the first of its new-generation ‘Tianlian II-01’ data relay satellite into orbit by a Long March-3B carrier rocket from the Xichang Satellite Launch Centre in southwest Sichuan Province. This is the first of China’s second-generation data-tracking and relay satellites. It will provide services like data relay, measurement and control, and transmission to manned spacecraft, satellites, carrier rockets and non-spacecraft users. The Tianlian II network will be markedly more advanced in mission planning, system management and operations than the first-generation network composed of Tianlian I satellites. The satellite is developed by the China Academy of Space Technology under the China Aerospace Science and Technology Corporation.

Notes:
Researchers led by Kavli Institute for the Physics and Mathematics of the Universe in Japan has put a theory speculated by the late Stephen Hawking to its most rigorous test to date, and their results have ruled out the possibility that primordial black holes smaller than a tenth of a millimeter make up most of dark matter. They used the gravitational lensing effect to look for primordial black holes between Earth and the Andromeda galaxy. However, gravitational lensing effects are very rare events because it requires a star in the Andromeda galaxy, a primordial black hole acting as the gravitational lens, and an observer on Earth to be exactly in line with one another. In order to maximise the chances of capturing an event, the researchers used the Hyper Suprime-Cam digital camera on the Subaru telescope in Hawaii, which can capture the whole image of the Andromeda galaxy in one shot. Taking into account how fast primordial black holes are expected to move in interstellar space, the team took multiple images to be able to catch the flicker of a star as it brightens for a period of a few minutes to hours due to gravitational lensing. The team’s results showed primordial black holes can contribute no more than 0.1% of all dark matter mass. Therefore, it is unlikely the theory is true.

Notes:
Prof. Vikram Patel, a psychiatrist and professor of global health at Harvard Medical School, has won the prestigious 2019 John Dirks Canada Gairdner Global Health Award. Mr. Patel has led research generating knowledge on the burden and determinants of mental health problems in low and middle-income countries and pioneered approaches which utilise community resources for the prevention and treatment of mental health problems in India with global impact. Laureates receive a $100,000 cash honorarium and will be formally presented with their awards on October 24, 2019 at the annual Canada Gairdner Awards Gala in Toronto.

Notes:
In Kerala, the group of science experts of the Hume Centre for Ecology and Wildlife Biology has decided to launch ‘Café Scientifique’ to promote science among public in an interesting way. It is the first such initiative in the state to popularise the subject. It envisages to bring science back into popular culture by demystifying scientific research for the public and empowering non-scientists to comfortably assess science and technology issues, particularly those that impact social policy making. The project is also aimed at making science relevant, powerful and important to the public, especially the younger generations. Here, various topics such as universe, climate change, evolution, genetics and human-animal relations will be discussed in every monthly gathering. It is a grassroots public science initiative based on the French Café Philosophique model.

Notes:
The State of the Global Air 2019 report has recently released by the Boston-based Health Effects Institute (HEI). The report revealed that 1.2 million Indians lost their lives due to exposure to unsafe air in 2017. Now, in India, air pollution is the third-highest cause of death among all health risks, ranking just above smoking. This is a combined effect of outdoor fine particles PM2.5, ozone and household (indoor) air pollution. In 2017, exposure to PM 2.5 pollution was found to be the third leading risk factor globally for Type 2 diabetes-related deaths and disability after high blood sugar and excessive body weight. Due to this combined exposure South Asians including Indians are dying early — their life expectancy has reduced by over 2.6 years. In India, early deaths are linked to respiratory diseases, heart disease, stroke, lung cancer, and diabetes that are influenced by air pollution.

Notes:
The Japan Aerospace Exploration Agency (JAXA) has said that its Hayabusa2 spacecraft has successfully blasted the surface of an asteroid Ryugu to make a crater on its surface. The move will pave the way for the collection of underground samples for possible clues to the origin of the solar system. For this, the Hayabusa2 dropped a “small carry-on impactor” made of copper onto the asteroid and the spacecraft safely evacuated and remained intact. Now, JAXA is analyzing data to examine if or how the impactor made a crater. The copper explosive is the size of a baseball weighing 2 kg. If successful, it would be the first time for a spacecraft to take such materials. The asteroid, named Ryugu after an undersea palace in a Japanese folktale, is about 300 million kilometers (180 million miles) from Earth. Earlier, Hayabusa2 successfully touched down on a tiny flat surface on the boulder-rich asteroid in February 2019, when the spacecraft also collected some surface dust and small debris.