国际新闻

After Crash, Spain Asks if Its Train System Is Too Old and Prone to Human Error

来源: NYT > World News · 发布于

After Crash, Spain Asks if Its Train System Is Too Old and Prone to Human Error
来源: NYT > World News

After the country’s second major rail disaster in a year, Spaniards were confronting questions about the safety of their once-vaunted rail system.

After the country’s second major rail disaster in a year, Spaniards were confronting questions about the safety of their once-vaunted rail system.

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Scientists discover a hidden messaging system deep inside the brain
科学与环境

Scientists discover a hidden messaging system deep inside the brain

A tiny region deep within the brain has surprised scientists by revealing a remarkably sophisticated communication system. Previously thought to broadcast the same chemical signal throughout the brain, this region actually sends targeted messages that help control learning, atten

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