The world’s most powerful X-ray laser beam has been used to create a microscopic “black hole.” The machine uses extremely bright, fast flashes of light to take atomic-level snapshots of some of nature ...

The Therac-25 was not a device anyone was happy to see. It was a radiation therapy machine. In layman’s terms it was a “cancer zapper”; a linear accelerator with a human as its target. Using X-rays or ...

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