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Deciphering Milky Way’s warped spiral pattern

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Deciphering Milky Way's warped spiral pattern

BEIJING: A new study by Chinese and Australian astronomers has developed the world’s first accurate three-dimensional picture of the Milky Way’s warped appearance, showing that the galaxy’s disc is not flat but warped and twisted far away from the center.

The study was published online in the journal Nature Astronomy today.  Many people believed the galaxy would look like a flat disc of stars that orbit around its central region, but researchers of the study found that the galaxy’s far outer regions are warped and twisted, forming a three-dimensional structure.

Chen Xiaodian, the lead author of the study and a researcher at the National Astronomical Observatories of Chinese Academy of Sciences, said that accurate distances from the Sun to parts of the Milky Way’s outer disc were key to knowing what that disc actually looked like. Researchers established a robust Galactic disc model based on 1,339 variable stars which are four to 20 times larger than the Sun, and up to 100,000 times more luminous.

These stars providing high distance accuracy were used as primary distance indicators to develop an intuitive and accurate three-dimensional picture of the galaxy. From the 3D distribution map, researchers found that the new derived stellar disc is warped in a progressively twisted spiral pattern, with an S-shape. The further study validated that the stellar warp morphology is in excellent agreement with that of the galaxy’s warp.

“This new finding may help us to know the shape of the Milky Way, and provide a key clue to understanding how galaxies such as the Milky Way form and evolve,” said Deng Licai, co-author of the study.

 

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S. Korea to begin 5G service in March

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SEOUL:  South Korea’s finance minister said today that Seoul will become the first country in the world to start commercial operations of fifth-generation mobile network services next month.
Hong Nam-ki made the announcement at a meeting with senior officials on innovation-led growth in Seoul. KT Corp., South Korea’s leading wireless and fixed-line services provider, carried out a world first
trial service of its 5G system during the PyeongChang Winter Olympics last year. 5G data transmission speeds are 40-50 times faster than the existing 4G network or long-term evolution (LTE) and are expected to open a wide range of new business opportunities for the communication service sector.
The system, moreover, allows greater numbers of people to communicate with each other at the same time and promises to open vast markets for devices and services. The finance minister also said KT and two other local competitors – SK Telecom Co. and  LG Uplus Inc. – will invest some 3 trillion won (US$2.6 billion) this year to set up seamless 5G connectivity in the country going forward.

 

 

 

 

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Malaysia aims to become leading aerospace nation by 2030

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MALAYSIA: Malaysia is aiming to become Southeast Asia’s leading aerospace nation by 2030, says International Trade and Industry Minister Darell Leiking.

He said by 2030, the industry was targeted to generate an annual revenue of RM55.2 billion and create more than 32,000 high-income jobs.

“Under the 11th Malaysia Plan, the government had identified the aerospace sector as one of the new growth industries for Malaysia,” he said when launching SAM Engineering and Equipment (M) Bhd’s new plant here Thursday.

Darell said the government aimed to shift Malaysia’s economy from labour intensive to high value-added, as well as knowledge and innovation-based economy, with a focus on the services and manufacturing sectors.

“In 2017, the Malaysian aerospace industry recorded a revenue of RM13.5 billion, with aerospace manufacturing contributing 48 per cent of the amount.

“The (aerospace) industry’s export value reached RM8.51 billion, comprising mainly of aerospace parts and components,” he said.

Citing a report, Darell said aircraft manufacturers Airbus and Boeing forecast that more than 40,000 new aircraft would be needed globally by 2037 and about 16,000 aircraft would be delivered to the Asia-Pacific region.

“Airbus valued the 35,000 of the planes to be delivered over the next 20 years at around US$5 trillion (US$1=RM4.07),” he said.

The minister said a strong ecosystem to support aerospace manufacturing, and maintenance, repair and overhaul (MRO) activities was needed in view of the expected increase in the number of aircraft globally and regionally.

“This positive development is spurring the government to view the aerospace industry as a critical sector offering abundant opportunities for the transfer of advanced technologies in engineering, electronics, composite materials, system integration, MRO, and industry-led research and technology,” he added.

 

 

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Samsung launches flagship Galaxy S10 series smartphones in San Francisco

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Samsung launches flagship Galaxy S10 series smartphones in San Francisco

SAN FRANCISCO: South Korea’s top smartphone manufacturer Samsung Electronics Co., Ltd. has officially launched its flagship Galaxy S lineup of smartphones at its Unpacked event in downtown San Francisco.

The newly unveiled products consist of three models — the cheaper S10e, the standard S10 and the S10 Plus, which Samsung claimed are next-generation mobile devices for needs of a future life.

Galaxy S10 Plus boasts a 6.4-inch screen featuring Samsung’s new “Dynamic AMOLED” display technology, and an Octa-core Qualcomm Snapdragon 855 processor that is believed to be fast enough to become a strong contender of Apple’s iPhone XS Max.

The launch of the Galaxy S series smartphones coincided with the 10th anniversary of the Galaxy family since the first Galaxy S mobile phone made its debut a decade ago.

Samsung said the new lineup “delivers a next-generation experience in the categories consumers care about most: groundbreaking innovations in display, camera and performance.”

“Since its launch 10 years ago, the Galaxy S series has stood for premium innovation — offering consumers an incredible experience, and the ability to find the device that’s right for them,” said DJ Koh, president and CEO of IT and Mobile Communications Division at Samsung Electronics.

With these new products, Samsung is “leveraging a decade of industry leadership to usher in a new era of smartphone technology,” Koh added.

Samsung also announced its new lineup of Galaxy wearables — Galaxy Watch Active, Galaxy Fit and Galaxy wireless ear buds at Wednesday’s event.

 

 

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