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One of the companies involved in a new nuclear reactor at Taishan in Guangdong, China, has written to the US government warning of an “imminent radiological threat” at the plant. The memo from French firm Framatome to the US Department of Energy, first reported by CNN, said Chinese authorities were raising acceptable radiation limits around the power station, to avoid shutting the reactor down. How serious is the issue, and should you be worried?

Do we know what’s causing the problem?

WARREN, Mich. – Starting today, General Motors Co. (NYSE: GM) is gathering hundreds of employees, dealers, investors, analysts, media and policymakers to share details of its strategy to grow the company’s electric vehicle (EV) sales quickly, efficiently and profitably.

“Our team accepted the challenge to transform product development at GM and position our company for an all-electric future,” said Mary Barra, GM chairman and CEO. “What we have done is build a multi-brand, multi-segment EV strategy with economies of scale that rival our full-size truck business with much less complexity and even more flexibility.”

The heart of GM’s strategy is a modular propulsion system and a highly flexible, third-generation global EV platform powered by proprietary Ultium batteries. They will allow the company to compete for nearly every customer in the market today, whether they are looking for affordable transportation, a luxury experience, work trucks or a high-performance machine.

AI has finally come full circle.

A new suite of algorithms by Google Brain can now design computer chips —those specifically tailored for running AI software —that vastly outperform those designed by human experts. And the system works in just a few hours, dramatically slashing the weeks-or months-long process that normally gums up digital innovation.

At the heart of these robotic chip designers is a type of machine learning called deep reinforcement learning. This family of algorithms, loosely based on the human brain’s workings, has triumphed over its biological neural inspirations in games such as Chess, Go, and nearly the entire Atari catalog.

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After a decade of design and fabrication, General Atomics is ready to ship the first module of the Central Solenoid, the world’s most powerful magnet. It will become a central component of ITER, a machine that replicates the fusion power of the Sun. ITER is being built in southern France by 35 partner countries.

ITER’s mission is to prove energy from hydrogen fusion can be created and controlled on earth. Fusion energy is carbon-free, safe, and economic. The materials to power society with hydrogen fusion for millions of years are readily abundant.

Despite the challenges of Covid-19, ITER is almost 75 percent built. For the past 15 months, massive first-of-a-kind components have begun to arrive in France from three continents. When assembled together, they will make up the ITER Tokamak, a “sun on earth” to demonstrate fusion at industrial scale.

After years of promises and some limited cooperation, Russia and China have begun to draw up ambitious plans for missions that would directly compete with those of the United States and its partners, ushering in a new era of space competition that could be as intense as the first.


The budding new partnership reflects the geopolitics of the world today.

China and Russia have grown increasingly close under their current leaders, Xi Jinping and Vladimir V. Putin, smoothing decades of mistrust between the countries and creating a potent, though unofficial, alliance against what they perceive as the hegemonic behavior of the United States. Space has become a natural extension of the two countries’ warming ties, given increasingly fraught relations with the United States.

Russian officials have already signaled they may pull out of the International Space Station once the current agreement with its partners ends in 2024. The launch last year of SpaceX’s crew capsule had already ended Russia’s exclusive role ferrying American astronauts into orbit.

Southwest Airlines canceled 500 flights, 15% of its schedule, Tuesday as it struggled with connectivity issues, a day after technical problem with a weather data supplier delayed hundreds of flights.

The Federal Aviation Administration briefly issued a nationwide ground stop for Southwest, which prevents its flights from taking off to avoid overwhelming destinations.

More than 1690 Southwest flights were delayed on Tuesday, close to half of the carrier’s schedule, according to flight tracking site FlightAware. The airline said operations were returning to normal by Tuesday afternoon.