FT Digital Edition
In an article on Monday, Sir Keir said he wanted to "crack down on the addictive elements of social media" that "keep our children hooked on their screens for hours".
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The compliance burden
Current X-ray lasers require facilities that are kilometres long. A cavity-based set-up about 66 metres in length has been developed that uses highly reflective mirrors to enable the generation of high-intensity pulses of narrow-band X-ray radiation. This promises to overcome the limitations of current X-ray lasers.