Pinghan Chu

12 Flips | 1 Magazine | 4 Following | @pinghan | Keep up with Pinghan Chu on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Pinghan Chu”

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Why Japan leads the world in high-speed trains

MANY countries seem obsessed with high-speed rail. Britain intends to build a controversial high-speed link known as HS2, connecting London to …

Why is everyone so busy?

THE predictions sounded like promises: in the future, working hours would be short and vacations long. “Our grandchildren”, reckoned John Maynard …

University of Chicago

Why don't Americans ride trains?

AMERICA has by far the largest rail network in the world, with more than twice as much track as China. But it lags far behind other first-world …

Why do neutrinos change flavour?

In less than 100 seconds, Kenneth Long describes neutrinos in the context of quantum mechanics, explaining how they can oscillate between …

Interfering atoms could help detect gravitational waves

Scientists in California have proposed a new type of gravitational-wave detector that is immune to laser noise – a problem that adds to the expense …

Nuclear physics goes pear-shaped

An international team of physicists has found the best evidence yet that some heavy nuclei are not spherical or ellipsoidal – but “pear-shaped”. The …

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Pear-shaped nucleus boosts search for new physics

The strange shape of radium 224 could lead to test alternatives to standard model.<p>A lopsided atomic nucleus may help to refine nuclear theory. The …

The measure of global warming

AT NOON on May 4th the carbon-dioxide concentration in the atmosphere around the Mauna Loa Observatory in Hawaii hit 400 parts per million (ppm). The …

Climate Change