Curbs shut US drone makers out of export markets (Update)

Military brass shopping at Asia's biggest defense expo this week have drones high on their to-buy list. But for U.S. manufacturers including General Atomics, which makes the Predator hunter-killer, there's one problem: they ...

Simulation sets atoms shivering

(Phys.org) —In "Harry Potter and the Sorcerer's Stone" (JK Rowling, 1997), Harry, Ron, and Hermione encounter a massive stone chessboard, one of many obstacles in their path. To advance, they must play, and win. Although ...

World timekeepers wrangle over scrapping leap second

Timekeeping experts failed Friday to reach a decision on scrapping the four-decade-old practice of adding extra seconds to clocks, a system opponents say causes headaches in a hi-tech, interconnected world.

Japan nuclear-free as last reactor switched off

Japan went nuclear-free on Monday as it switched off its last operating reactor for an inspection, with no date scheduled for a restart amid strong public hostility to atomic power.

Japan to be nuclear-free as last reactor switched off

Japan on Sunday began switching off its last operating nuclear reactor for an inspection, with no date scheduled for a restart amid strong public hostility towards atomic power.

Japan heads back to nuclear zero for reactor checkups

Workers will switch off one of Japan's two working reactors Monday, with the other set for shutdown later this month and no restarts in sight amid continued public hostility to nuclear power.

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