Sunday 19 May 2019

Bullet train champion in Japan will debut in 2030, now being tested

Testing for a train capable of 249mph (400 kph) speeds is to happen about twice a week at night. Bloomberg said ALFA-X is the world's fastest bullet train— well, for now, it is holding that title. Japan has also been working on a maglev train.

* This article was originally published here

As bitcoin gyrates, less euphoria in evidence at blockchain gathering

The vibe at a gathering this week for blockchain enthusiasts felt decidedly less exuberant than its predecessor a year ago after dizzying swings in bitcoin.

* This article was originally published here

Eyes in the sky project will show power plant pollution marks

Air pollution is responsible for millions of deaths every year, worldwide. According to a State of Global Air report, air pollution is the fifth greatest global mortality risk.

* This article was originally published here

Researchers unravel mechanisms that control cell size

Working with bacteria, a multidisciplinary team at the University of California San Diego has provided new insight into a longstanding question in science: What are the underlying mechanisms that control the size of cells?

* This article was originally published here

Eating ultra-processed foods will make you gain weight. Here's the scientific proof

For four weeks, 20 healthy volunteers checked into a research center hospital and were served a variety of tempting meals: cinnamon french toast, stir-fry beef with broccoli and onions, turkey quesadillas and shrimp scampi. Researchers scrutinized everything that was eaten and came away with the first hard evidence to support a long-held suspicion: Heavily processed foods could be a leading factor in America's obesity epidemic.

* This article was originally published here

Tobacco and e-cigarette promotions spark teens' use of nicotine products, study finds

Owning items that promote e-cigarettes and other alternative tobacco products doubles the likelihood that a young person will try these products, a new study led by the Stanford University School of Medicine has found. The finding illustrates the influence of such marketing on teenagers.

* This article was originally published here

Life goes on under cloud of smog in Mexico City

Scientists say breathing the heavily polluted air in Mexico City these days is like smoking somewhere between a quarter- and a half-pack of cigarettes a day.

* This article was originally published here

Sedimentary, dear Johnson: Is NASA looking at the wrong rocks for clues to Martian life?

In 2020, NASA and European-Russian missions will look for evidence of past life on Mars. But while volcanic, igneous rock predominates on the Red Planet, virtually the entire Earth fossil record comes from sedimentary rocks.

* This article was originally published here

Samsung at foundry event talks about 3nm, MBCFET developments

"The nanometer process deals with the space between the transistors mounted on a substrate at a nanometer level," said Pulse.

* This article was originally published here

German startup to offer electric air taxis 'by 2025'

German startup firm Lilium announced Thursday the maiden flight of its all-electric pilotless jet-powered 'air taxi' which it hopes to operate in various cities around the world 'by 2025'.

* This article was originally published here